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User: silvesyt

SWIMMING SPERMATOZOA IN SEMEN Human spermatozoa in semen. The source specimen shows delayed liquefaction Tags: sperm spermatozoa human semen microscope microscopy andrology medicine reproduction fertility

User: silvesyt

ATOMIC FORCE MICROSCOPY - RED/WHITE BLOOD CELLS, SPERMATOZOA Just a glance at our atomic force microscopy laboratory and a few sample images related to our scientific work: erythrocytes, white blood cells, acrosome-reacted human sperm. AFM is a technique of analysis that senses and visualizes the surfaces of hard materials in their three-dimensional reality down to the periatomic scale, virtually leaving the specimen unmodified. When applied to cells, AFM easily reaches the molecular resolution and returns astonishing, unprecedented pictures of nanonature. And much more: go and browse the web...! Tags: ATOMIC FORCE MICROSCOPY ERYTHROCYTES LEUKOCYTES SPERMATOZOA

User: Erika78750

Spermatozoa Showing mature male gametes Tags: spermatozoa

User: cheesegerger

007 Spermatozoa Comical Simulation of Fertilization Process Tags: FP

User: sugamamingya

Spermatozoa - w/ eng subtitles Music Video for the band Tornado. Song from the album Tempo. For more music, visit www.myspace.com/tornadotheband Tags: tornado trilogy tati music video rock sperm cool band salva junk low budget lo-fi andy pop wine spermatozoa cheap musicvideo entertainment london plaistow east controversy

User: janjowa

Spermatozoa The anatomy of the spermatozoa is comprised of the head, which has a large nucleus filled with genetic material; the neck; which connects the body to the head; the body, which contains mitochondria; the mitochondria, which provide energy, and the tail, which provides motility. courses, education, school teachers, school, schools teacher education, teacher, teachers, universities, courses, photo, photography, free, online, golf, itialian, asian, american, asian, uk, india, ameraia,spanich, spanish, speed, awareness, training, fun, knowledge, Fast, Full, fysi, fysisoft, com, computer, karachi, lahore, islamabad, gujrat, jhelum, kharian, gujranwala, sialkot, karachi, quetta,school, college, sex, sex education, us, eu, euroo, euro, hangama, masti, flirt, love, articles, leadership, philosphy, philpines, psycology, quotes, software, hardware, soft, hard, toys, websites, staff, staffing, ranking, toys, elementary, pre, high, senior, junior, chemistry, bio, biology, physics, maths, mathematics, riazi, kemiya, pakistn, pakistan, pari, nude, wild, thong Tags: animation blooper improv parody pranks series short film sketch spoof stand-up video blog

User: kosmogonia

TESE (Testicular Sperm Extraction-testicular biopsy) In cases of azospermia (the absence of spermatozoa in the ejaculate), a testicular biopsy can tell us if there spermatogenesis (sperm production) and if the presence of spermatozoa can be found in the testes. Often if spermatozoa cannot be observed in a semen analysis, spermatozoa can be retrieved in several regions of the testes. The biopsy can be performed prior to IVF treatment as a diagnostic means, with the tissue frozen. Alternatively the day before or on the actual day of oocyte retrieval. If spermatozoa are recovered with TESE then the oocytes are fertilized by the method ICSI. Here, we see a single sperm being chosen from cells from the testes and being used fir ICSI. Tags: kosmogonia Greece in vitro fertilisation

User: Erika78750

Spermatozoa or Flagella Sperm Tags: Sperm

User: silvesyt

SPERM IN CERVICAL MUCUS Phase-contrast microscopy: human spermatozoa penetrating cervical mucus in vitro. Once into the cervical mucus, the spermatozoa travel in lines along molecular tracks made of highly hydrated, long glycoproteins. A one-way climbing. Tags: spermatozoa semen cervical mucus phase-contrast microscopy reproduction fertility meddicine andrology

User: jafalks

Grasshopper - National Geographic Specials 1 of 4 The grasshopper's reproductive system consists of the gonads, the ducts which carry sexual products to the exterior, and accessory glands. In males, the testes consist of a number of follicles which hold the spermatocytes as they mature and form packets of elongated spermatozoa. After they are liberated in bundles, these spermatozoa accumulate in the vesicula seminalis (vas deferens). In females, each ovary consists of ovarioles. These converge upon the two oviducts, which unite to create a common oviduct which carries ripe eggs. Each of the ovarioles consists of a germarium (a mass of cells that form oocytes, nurse cells, and follicular cells) and a series of follicles. The nurse cells nourish the oocytes during early growth stages, and the follicular cells provide materials for the yolk and make the eggshell (chorion). During reproduction, the male grasshopper introduces sperm into the ovipositor through its aedeagus (reproductive organ), and inserts its spermatophore, a package containing the sperm, into the female's ovipositor. The sperm enters the eggs through fine canals called micropyles. The female then lays the fertilized egg pod, using her ovipositor and abdomen to insert the eggs about one to two inches underground, although they can also be laid in plant roots or even manure. The egg pod contains several dozens of tightly-packed eggs that look like thin rice grains. The eggs stay there through the winter, and hatch when the weather has warmed sufficiently. In temperate zones, many grasshoppers spend most of their life as eggs through the cooler months (up to 9 months) and the active states (young and adult grasshoppers) live only up to three months. The first nymph to hatch tunnels up through the ground, and the rest follow. Grasshoppers develop through stages and progressively get larger in body and wing size. This development is referred to as hemimetabolous or incomplete metamorphosis since the young are rather similar to the adult. Tags: Grasshopper National Geographic Specials Insect wild life

User: jafalks

Grasshopper - National Geographic Specials 2 of 4 The grasshopper's reproductive system consists of the gonads, the ducts which carry sexual products to the exterior, and accessory glands. In males, the testes consist of a number of follicles which hold the spermatocytes as they mature and form packets of elongated spermatozoa. After they are liberated in bundles, these spermatozoa accumulate in the vesicula seminalis (vas deferens). In females, each ovary consists of ovarioles. These converge upon the two oviducts, which unite to create a common oviduct which carries ripe eggs. Each of the ovarioles consists of a germarium (a mass of cells that form oocytes, nurse cells, and follicular cells) and a series of follicles. The nurse cells nourish the oocytes during early growth stages, and the follicular cells provide materials for the yolk and make the eggshell (chorion). During reproduction, the male grasshopper introduces sperm into the ovipositor through its aedeagus (reproductive organ), and inserts its spermatophore, a package containing the sperm, into the female's ovipositor. The sperm enters the eggs through fine canals called micropyles. The female then lays the fertilized egg pod, using her ovipositor and abdomen to insert the eggs about one to two inches underground, although they can also be laid in plant roots or even manure. The egg pod contains several dozens of tightly-packed eggs that look like thin rice grains. The eggs stay there through the winter, and hatch when the weather has warmed sufficiently. In temperate zones, many grasshoppers spend most of their life as eggs through the cooler months (up to 9 months) and the active states (young and adult grasshoppers) live only up to three months. The first nymph to hatch tunnels up through the ground, and the rest follow. Grasshoppers develop through stages and progressively get larger in body and wing size. This development is referred to as hemimetabolous or incomplete metamorphosis since the young are rather similar to the adult. Tags: Grasshopper National Geographic Specials Insect wild life

User: silvesyt

SPERM HEALTH - ACROSOME ASSESSMENT The role of the human sperm acrosome is presented together with an original lab procedure to assess acrosome integrity, important in managing human reproductive problems and in basic research on spermatozoa Tags: human spermatozoa acrosome sterility fertility infertility semen sperm laboratory technique diagnosis andrology reproduction

User: jafalks

Grasshopper - National Geo Specials 4 of 4 The grasshopper's reproductive system consists of the gonads, the ducts which carry sexual products to the exterior, and accessory glands. In males, the testes consist of a number of follicles which hold the spermatocytes as they mature and form packets of elongated spermatozoa. After they are liberated in bundles, these spermatozoa accumulate in the vesicula seminalis (vas deferens). In females, each ovary consists of ovarioles. These converge upon the two oviducts, which unite to create a common oviduct which carries ripe eggs. Each of the ovarioles consists of a germarium (a mass of cells that form oocytes, nurse cells, and follicular cells) and a series of follicles. The nurse cells nourish the oocytes during early growth stages, and the follicular cells provide materials for the yolk and make the eggshell (chorion). During reproduction, the male grasshopper introduces sperm into the ovipositor through its aedeagus (reproductive organ), and inserts its spermatophore, a package containing the sperm, into the female's ovipositor. The sperm enters the eggs through fine canals called micropyles. The female then lays the fertilized egg pod, using her ovipositor and abdomen to insert the eggs about one to two inches underground, although they can also be laid in plant roots or even manure. The egg pod contains several dozens of tightly-packed eggs that look like thin rice grains. The eggs stay there through the winter, and hatch when the weather has warmed sufficiently. In temperate zones, many grasshoppers spend most of their life as eggs through the cooler months (up to 9 months) and the active states (young and adult grasshoppers) live only up to three months. The first nymph to hatch tunnels up through the ground, and the rest follow. Grasshoppers develop through stages and progressively get larger in body and wing size. This development is referred to as hemimetabolous or incomplete metamorphosis since the young are rather similar to the adult Tags: Grasshopper National Geographic Specials Insect wild life Great Swarm

User: jafalks

Grasshopper - Nat Geo Specials 3 of 4 The grasshopper's reproductive system consists of the gonads, the ducts which carry sexual products to the exterior, and accessory glands. In males, the testes consist of a number of follicles which hold the spermatocytes as they mature and form packets of elongated spermatozoa. After they are liberated in bundles, these spermatozoa accumulate in the vesicula seminalis (vas deferens). In females, each ovary consists of ovarioles. These converge upon the two oviducts, which unite to create a common oviduct which carries ripe eggs. Each of the ovarioles consists of a germarium (a mass of cells that form oocytes, nurse cells, and follicular cells) and a series of follicles. The nurse cells nourish the oocytes during early growth stages, and the follicular cells provide materials for the yolk and make the eggshell (chorion). During reproduction, the male grasshopper introduces sperm into the ovipositor through its aedeagus (reproductive organ), and inserts its spermatophore, a package containing the sperm, into the female's ovipositor. The sperm enters the eggs through fine canals called micropyles. The female then lays the fertilized egg pod, using her ovipositor and abdomen to insert the eggs about one to two inches underground, although they can also be laid in plant roots or even manure. The egg pod contains several dozens of tightly-packed eggs that look like thin rice grains. The eggs stay there through the winter, and hatch when the weather has warmed sufficiently. In temperate zones, many grasshoppers spend most of their life as eggs through the cooler months (up to 9 months) and the active states (young and adult grasshoppers) live only up to three months. The first nymph to hatch tunnels up through the ground, and the rest follow. Grasshoppers develop through stages and progressively get larger in body and wing size. This development is referred to as hemimetabolous or incomplete metamorphosis since the young are rather similar to the adult Tags: Grasshopper National Geographic Specials Insect wild life Great Swarm

User: jaimef69

Several times "little" details are the key... spermatozoa looking to fertilize the ovule... but just the smart boy get it Tags: spermatozoa espermatozoides

User: hotnoveno

sex porn xxx asss... MADAME SARKOZY This article is about biological sex. For alternate uses, such as sexual intercourse and the social concept of gender, see Sex (disambiguation). Sex in animals involves the fusion of a sperm and an egg cell.In biology, sex is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into male and female reproductive roles. Sexual reproduction involves combining specialized cells (called gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function, but in many cases an asymmetry has evolved such that two types of gametes exist: male gametes are small and are optimized to transport their genetic information, while female gametes are large and carry the nutrients necessary for the development of the child organism. An organism's sex is defined by the gametes it produces: males produce male gametes (sperm) while females produce female gametes (egg cells); organisms which produce both male and female gametes are hermaphrodites. Frequently physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience. In some cases female organisms also have the role of carrying offspring through the first part of development, a process called gestation. Sexual reproduction is a process where organisms form offspring that combine genetic traits from both parents.[1] Genetic traits are contained within the DNA of chromosomes — by combining a set of chromosomes from each parent, an organism is formed containing a doubled set of chromosomes. This double-chromosome stage is called "diploid", while the single chromosome stage is "haploid". Diploid organisms can, in turn, form haploid cells that randomly inherit one of the two different chromosomes, a process called meiosis.[2] Meiosis also involves a stage of chromosomal crossover, in which regions of DNA are exchanged between the two chromosomes to form a new pair of mixed chromosomes. These processes result in the recombining of different genetic traits. In many organisms the haploid stage has been reduced to specialized cells called gametes specialized to recombine and form a new diploid organism. Sometimes gametes are externally similar, particularly in size (isogamy); often, however, an asymmetry has evolved such that the gametes are different in size and other aspects (anisogamy).[3] By convention, the larger gamete (called an egg cell or ovum) is considered female, while the smaller gamete (called a sperm) is considered male. An individual that produces exclusively large gametes is female, and one that produces exclusively small gametes is male. An individual that produces both types of gametes is a hermaphrodite; in many cases hermaphrodites are able to self-fertilize and produce offspring on their own, without a second organism.[4] Sexually reproducing animals spend their lives as diploid organisms, with the haploid stage reduced to single cell gametes.[5] The gametes of animals have male and female forms—spermatozoa and egg cells. These gametes combine to form embryos which develop into a new organism. The male gamete, a spermatozoan (produced within a testicle), is a small cell containing a single long flagellum which propels it.[6] Spermatozoa are extremely reduced cells, lacking many cellular components that would be necessary for embryonic development. They are specialized for motility, seeking out an egg cell and fusing with it in a process called fertilization. Female gametes are egg cells (produced within ovaries), large immobile cells that contain the nutrients and cellular components necessary for a developing embryo.[7] Egg cells are often associated with other cells which support the development of the embryo, forming an egg. In mammals, the fertilized embryo instead develops within the female, receiving nutrition directly from its mother. Tags: xxx porn sex sexy striptease naked nude D&B panties cheerleaders Marky masturbation anal fuck tits breasts pussy

User: silvesyt

"BABY" IN SPERM While examining human sperm in a scanning electron microscope, we got astonished: a spermatozoon bearing an unprecedented anomaly, dramatically recalled the XVII century preformation theory and the theory of "Homunculus". Tags: sperm spermatozoa semen pathology medicine andrology reproduction fertility scanning electron microscope microscopy

User: AdamDevilDriver

Cattle Decapitation - To Serve Man Cattle Decapitation - To Serve Man, Album - Testicular Manslaughter Lyrics; Perpetual multiplier Procreating bastard Ever had your gonads smashed by a ball-peen hammer? Ever been forced into a vasectomy by and axe-wielding homovore? Do you know the word pain? You will when the mallot falls Again and again and again and again... I've a shotgun aimed at your testicles To shred your testes and sever adjacent vesicles Cold vengeance on a rapist Immediate testicular shape-shift Your manhood disintegrates and the stream starts to flood A shimmering mix of spermatozoa and blood Another human off the face of the earth A new vagina to replace it's absence of girth It rubs the feces on it's skin Or else it gets the hammer again... Torture Through blunt castration Slaughter Repeated testicular emaciation For your gross misconduct The tables are rightfully turned The urethra now a bile duct The frayed ends of karma are burned A gaping gash of reproduction Seminal waste of testosterone that ceases to function Asexual freak No longer of the male persuasion Your miserable heap of disfigurementation Brings thousands of victims vengeance and elation. Sulphur and buckshot Decimating your crotch Tags: Cattle Decapitation grindcore death grind metal to serve man

User: zergocascar

Human Fertilization.FECUNDACION http://sergiocascar.comunidadcoomeva.com/blog/. OR www.coomeva.com.co..Blog Name"AALOJAMIENTO INTERNACIONAL".-Fertilization occurs when spermatozoa travels up into the uterus, an a spermatozoon encounters an egg. Pregnancy occurs as a result of the fertilization of an ovum by sperm. Tags: Fertilization Fecundacion health medicine physical science

User: dizzo95

How the Body Works : The Anterior Pituitary Gland The Anterior Pituitary Gland The anterior pituitary gland, situated at the base of the brain, secretes several hormones which control the activity of other endocrine glands and influence general body growth. Messages from the higher centers of the brain stimulate hypothalamic cells to secrete hormones into the pituitary portal blood system. Some of these hormones stimulate, and others inhibit, secretion of anterior pituitary hormones. Hormones produce numerous effects. For example, TSH stimulates thyroid hormone production, and GH affects bones and muscles. ACTH triggers hormone release from the adrenal cortex. Prolactin stimulates lactation. LH and FSH control hormone release by the testes and ovaries; and in maturity production of spermatozoa and ova in these organs. Tags: The Anterior Pituitary Gland

User: trickstooiphone

My free Iphone The free iphone that I had won from http://iphonetricks.awardspace.com/ This article is about biological sex. For alternate uses, such as sexual intercourse and the social concept of gender, see Sex (disambiguation). Sex in animals involves the fusion of a sperm and an egg cell.In biology, sex is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into male and female reproductive roles. Sexual reproduction involves combining specialized cells (called gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function, but in many cases an asymmetry has evolved such that two types of gametes exist: male gametes are small and are optimized to transport their genetic information, while female gametes are large and carry the nutrients necessary for the development of the child organism. An organism's sex is defined by the gametes it produces: males produce male gametes (sperm) while females produce female gametes (egg cells); organisms which produce both male and female gametes are hermaphrodites. Frequently physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience. In some cases female organisms also have the role of carrying offspring through the first part of development, a process called gestation. Sexual reproduction is a process where organisms form offspring that combine genetic traits from both parents.[1] Genetic traits are contained within the DNA of chromosomes — by combining a set of chromosomes from each parent, an organism is formed containing a doubled set of chromosomes. This double-chromosome stage is called "diploid", while the single chromosome stage is "haploid". Diploid organisms can, in turn, form haploid cells that randomly inherit one of the two different chromosomes, a process called meiosis.[2] Meiosis also involves a stage of chromosomal crossover, in which regions of DNA are exchanged between the two chromosomes to form a new pair of mixed chromosomes. These processes result in the recombining of different genetic traits. In many organisms the haploid stage has been reduced to specialized cells called gametes specialized to recombine and form a new diploid organism. Sometimes gametes are externally similar, particularly in size (isogamy); often, however, an asymmetry has evolved such that the gametes are different in size and other aspects (anisogamy).[3] By convention, the larger gamete (called an egg cell or ovum) is considered female, while the smaller gamete (called a sperm) is considered male. An individual that produces exclusively large gametes is female, and one that produces exclusively small gametes is male. An individual that produces both types of gametes is a hermaphrodite; in many cases hermaphrodites are able to self-fertilize and produce offspring on their own, without a second organism.[4] Sexually reproducing animals spend their lives as diploid organisms, with the haploid stage reduced to single cell gametes.[5] The gametes of animals have male and female forms—spermatozoa and egg cells. These gametes combine to form embryos which develop into a new organism. The male gamete, a spermatozoan (produced within a testicle), is a small cell containing a single long flagellum which propels it.[6] Spermatozoa are extremely reduced cells, lacking many cellular components that would be necessary for embryonic development. They are specialized for motility, seeking out an egg cell and fusing with it in a process called fertilization. Female gametes are egg cells (produced within ovaries), large immobile cells that contain the nutrients and cellular components necessary for a developing embryo.[7] Egg cells are often associated with other cells which support the development of the embryo, forming an egg. In mammals, the fertilized embryo instead develops within the female, receiving nutrition directly from its mother. Tags: PORN anal sex oral ass tit fuck get fucked cunt dick pussy porno fucking naked lingerie horny milf hot

User: kosmogonia

Day 0 (insemination-IVF) 100,000 spermatozoa are added to each egg and incubated until the next morning.Miter IVF, Athens. Tags: kosmogonia Greece in vitro fertilisation

User: lindamermaid

Squid Mating in Monterey Bay On the sandy bottom of Monterey Bay, squid are busily perpetuating their species. Sacs of eggs, anchored in the sand by the females, wave in the current. The males' tentacles blush a bright red during mating. One male can be seen slipping a packet of spermatozoa into the female's body around :42. After securing the last of the eggs in the sand, all the squid die. Tags: squid eggs mating scuba monterey bay diving

User: montiglio

Loverboy: A Day Trip to the Reservoir Tip We find our gallant band of spermatozoa trapped mercilessly within a latex condom. "Loverboy" was originally conceived as a multiplayer internet sperm-racing game, in which people would use either an existing character or create their own (a la Mr Potato Head). As "Loverboy" developed its potential as an episodic animation became evident. The producing company, Lighthouse Productions, is a film and television production company that has been in business over thirty years. Films produced by founding partner and academy award winner Michael Phillips include The Sting, Taxi Driver, and Close Encounters of the Third Kind. "Loverboy" represents the company's first foray into the animation world. Director Steve Montiglio's initial connection to Lighthouse was as a concept artist and screenwriter on a feature film project. He subsequently designed and animated a 4 minute "Loverboy" short which led to the production of these six vignettes. www.loverboygame.com Tags: loverboy animation funny irreverent sperm characters

User: silvesyt

HUMAN SPERM ACROSOME REACTION - SCANNING ELECTRON MICROSCOPY Ultrastructure of human sperm acrosome reaction steps, animated from a sequence of images taken with a scanning electron microscope. Only the acrosome - the anterior region of the sperm head - is involved. A reticulum of thin tubules appear first, giving the surface a wave-like appearance followed by the formation of small vesicles varied in size that gradually detach, a process that makes the intraacrosomal enzymes free to diffuse outside. These enzymes chemically drill the oocyte surface, ultimately allowing the spermatozoon to penetrate into and fertilize the female gamete. Magnification about 22,000X Tags: scanning electron microscopy microscope human spermatozoa acrosome reaction medicine reproduction fertility

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