What is the definition for "seminal vesicle"?
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The seminal vesicles are a pair of glands posterinferior to the urinary bladder of males. They secrete a significant proportion of the fluid that ultimately becomes semen. About 60% of the seminal fluid in humans originates from the seminal vesicles.\n\nSeminal vesicle secretions contain proteins, enzymes, fructose, phosphorylcholine and prostaglandins.\n\nThe duct of the seminal vesicle enters the prostate gland along with the ductus deferens (the tube coming from the testis). They join to form the ejaculatory duct.
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It's still the same colour.\nEjaculate is white because it contains glucose, whether a guy has had a vasectomy or not.\nA vasectomy severs the tract between the testicle and the prostate, which is where the sperm (produced in the testicles) and semen (which is white) are mixed.\nAfter a vasectomy, the semen is still able to get to the prostate (and out the urethra), but it contains no sperm.
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Dude, semen is the liquid that carries sperm.  Women do not have sperm.  If you don't know this much, stay away from sexual activity for a few more years.\n\nGood luck!!
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The endomembrane system is the system of internal membranes within eukaryotic cells that divide the cell into functional and structural compartments, or organelles. Prokaryotes do not have an endomembrane system and thus lack most organelles.\n\nThe endomembrane system also provides a transport system, for moving molecules through the interior of the cell, as well as interactive surfaces for lipid and protein synthesis. The membranes that make up the endomembrane system are made of a lipid bilayer, with proteins attached to either side or traversing them.\n\nThe following organelles are part of the endomembrane system:\n\n    * The plasma membrane is a phospholipid bilayer membrane that separates the cell from its environment and regulates the transport of molecules and signals into and out of the cell.\n    * The nuclear envelope is the membrane around the nucleus of the cell.\n    * The endoplasmic reticulum is a synthesis and transport organelle [the endoplasmic reticulum is an extension of the nuclear envelope].\n    * The Golgi apparatus acts as the packaging and delivery system for molecules.\n    * Lysosomes are the "digestive" units of the cell. They utilize enzymes to break down macromolecules and also act as a waste disposal system.\n    * Vacuoles act as storage units in some cells.\n    * Vesicles are small membrane-enclosed transport units that can transfer molecules between different compartments.
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The prostate (notice no letter R) is not a muscle but a gland that is surrounded by muscle tissue.  It contributes a large amount of the liquid that makes up semen, but the muscles contractions are the orgasm.
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During a vasectomy, the vas deferens from each testicle is clamped, cut, or otherwise sealed. This prevents sperm from mixing with the semen that is ejaculated from the penis. An egg cannot be fertilized when there are no sperm in the semen. The testicles continue to produce sperm, but the sperm are reabsorbed by the body. (This also happens to sperm that are not ejaculated after a while, regardless of whether you have had a vasectomy.)
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of course it flows out. it's supposed to. its not just supposed to stay there. and with your wife feeling the semen inside of her, she doesn't necessarily have to. as soon as you ejaculate, the sperm is deposited into the vagina and then the rest of the seminal fluid flows back out.
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The main function of the prostate is to supply fluid for sperm.
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The primary function of the male reproductive system is reproduction, which includes the production of spermatozoa, the transportation of spermatozoa from the testes out of the male body, the secretion by glands, and the placement of spermatozoa in the female reproductive tract. Spermatozoa are produced in the testes then transported from the testes by a series of ducts which become gradually larger and connect with the urethra of the penis.  Various accessory glands in the male system secrete materials which together with the spermatozoa constitutes the semen. A secondary function of the male reproductive system is the production of the male hormones which are responsible for the secondary sex characteristics of the male animal.\n\nhttp://www.cvm.okstate.edu/instruction/mm_curr/histology/MR/himrp1.htm\n\nThe male reproductive system, like that of the female, consists of those organs whose function is to produce a new individual, i.e., to accomplish reproduction. This system consists of a pair of testes and a network of excretory ducts (epididymis, ductus deferens (vas deferens), and ejaculatory ducts), seminal vesicles, the \nprostate, the bulbourethral glands, and the penis. \n\nhttp://training.seer.cancer.gov/module_anatomy/unit12_2_repdt_male.html\n\nThe organs of the male reproductive system are specialized for the following functions:\n\nTo produce, maintain and transport sperm (the male reproductive cells) and protective fluid (semen) \nTo discharge sperm within the female reproductive tract \nTo produce and secrete male sex hormones \n\n\nhttp://www.cchs.net/health/health-info/docs/2300/2376.asp?index=9117
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Prostate function \nA small doughnut-shaped gland, the prostate surrounds the urethra where it leaves the bladder. The prostate produces an alkaline substance which makes up the largest part of the seminal reproductive fluid (semen)and normal urine flow.
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do you mean sperm? cumm?
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Molecules found on the outside of the cell are endocytosed into vesicles and fuse with endosomes (which are just a collection of vesicles) once an endosome recieves the special digestive enzymes from the Golgi it becomes a lysosome.\n\nSo overall yup lysosomes are just a special vesicle!
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Crikey, it's a long time since my Biochem lectures, but I know there are energy supplies for the sperm cells long journey, in the form of sugars. The fluid comes from 2 glands by the way, the prostate is one and I can't remember the other, oh hell !\nOther interesting info, the average ejaculation is around 5ml (a teaspoon) and it has the calorific value of 8 oz of steamed broccoli/calabrese.
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a - inner membrane of mitochondrium\n\nb - membranes of endoplasmic reticulum, peroxisomes, lysosomes, vesicles and the inner membrane of the mitochondrion \n\nc - inner mitochondrial membrane\n\nd - inner mitochondrial membrane
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The epidiymis connects the testicles with the vas deferens (the tubes that carry sperm).
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Blue balls is a slang term for a temporary fluid congestion in the testicles and prostate region caused by prolonged sexual arousal in the human male. It is most commonly associated with adolescents but can occur in any sexually mature male. It is often accompanied by a cramp-like ache of prostatic congestion and pain/tenderness of the testes.
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Ejaculation is the process of ejecting semen from the penis, and is usually accompanied by orgasm as a result of sexual stimulation. It may also occur spontaneously during sleep (called a nocturnal emission), due to stimulating of the prostate or, rarely, due to prostatic disease.\n\nEjaculation is a reflex which usually cannot be stopped once it has started, without painful cramping. It has two phases: emission and ejaculation proper. During emission, the two ducts known as vas deferens contract to propel sperm from the epididymis (where it was stored) up to the ampullas at the top end of the vas deferens. The beginning of emission is typically experienced as a "point of no return." The sperm then passes through the ejaculatory ducts and is mixed with fluids from the seminal vesicles, the prostate, and the bulbourethral glands to form the semen or ejaculate. During ejaculation proper, the semen is ejected through the urethra with rhythmical contractions.\n\nThe force and amount of ejaculate vary widely from male to male. A normal ejaculation may contain anywhere from 2 to 15 millilitres (from half a teaspoon to a tablespoon), although 2 to 6 ml is typical. Ejaculate volume is affected by the amount of time that has passed since the previous ejaculation (i.e. the duration of ejaculatory abstinence). Larger ejaculate volumes are seen with greater durations of abstinence. Also, the duration of the stimulation leading up to the ejaculation can affect the volume. Abnormally low volume is known as hypospermia.\n\nThe number of sperm in an ejaculation also varies widely, depending on many factors, including the recentness of last ejaculation, the average warmth of the testicles, the degree and length of time of sexual excitement prior to ejaculation, the age, testosterone level, and general fertility of the subject, and the total volume of seminal fluid. An unusually low sperm count, not the same as low semen volume, is known as azoospermia.\n\nThe ejaculation reflex is caused by the sympathetic nervous system, while erection of the penis is caused by the parasympathetic nervous system. Most men experience a lag time of some half-hour or so between the ability to ejaculate consecutively. During this refractory period it is difficult or impossible to attain an erection, because the sympathetic nervous system counteracts the effects of the parasympathetic nervous system.\n\nThere are wide variations in how long sexual intercourse can last before ejaculation occurs. Studies have shown that most men can only avoid ejaculation during active thrusting for five minutes or less. A minority can ejaculate more or less at will, and delay ejaculation for an hour or longer during sexual intercourse.\n\nAt the conclusion of sexual intercourse, most men ejaculate while inside their partner. However, some prefer to withdraw their penis from their partner's body, and ejaculate elsewhere, such as upon their partner's face or chest. This is referred to as coitus interruptus. Ejaculation can also occur during oral sex where the man's partner orally stimulates his penis. Ejaculation can occur in the partner's mouth or he can withdraw from the mouth and ejaculate on the face or other parts of the body. This type of ejaculation can be just as enjoyable as ejaculating inside the mouth, vagina or anus.\n\nWhen a man ejaculates before he wants to it is called premature ejaculation. If a man is unable to ejaculate in a timely manner after prolonged sexual stimulation, in spite of his desire to do so, it is called delayed ejaculation or anorgasmia. An orgasm that is not accompanied by ejaculation is known as a dry orgasm.