?html> Male external genital organs (solid chart)

Male external genital organs

Testicle: The main function is produces the spermatozoon and the secretion masculine hormone (?alkone). Former with the ova union but the fertilization, reproduces descendant's important material base, latter is maintains the male second 性征 (vice- 性征) the important matter.

附睾: The main function is promotes the spermatozoon growth and is mature, as well as stores with the transportation spermatozoon.

Vas deferens: Has very strongly wriggles the ability, is because the pipe wall muscle is very thick, the main function is the transportation and the excretion spermatozoon

精囊: The main function secretes one kind of mucilage, also does not produce the spermatozoon, also does not store the spermatozoon.

Fine rope: The main function is the testicle and 附睾 the suspension in the scrotum, protects the testicle and 附睾 is not damaged.

射精? The main function is 射精, 射精 the pipe wall muscle richer, has the powerful shrinkage force, helps the seminal fluid to project, simultaneously when the fine tube is located urethra steep position active on the aperture, both small and is narrow. Guaranteed 射精 the time should have the pressure, another 1. aspects seminal fluid through the narrow and small aperture, some one kind of "squeezes out the" feeling as if, through the nerve reflection, initiates 射精 the joyful pleasant sensation, thus achieving high tide time.

Prostate gland: The main function secretes the prostate gland fluid, also is one of seminal fluid components (approximately composes seminal fluid 13 ~ 32%), expands increased seminal fluid, is advantageous to spermatozoon's projecting, the prostate gland fluid projects in 精囊 the fluid.

Urethra: The main function is drains the urine and the seminal fluid, is the urine and the seminal fluid common channel. Has a pair of Cowper's gland nearby 尿道? the secretion few liquids, also is the seminal fluid constituent, simultaneously, carries on the sexual intercourse when the penis erection first flows out the urine road junction, lubricates the penis forehead, is advantageous to the penis insertion vagina.

Scrotum: The main function is the attemperation, maintains the testicle to be in the constant temperature environment (about 35). The scrotum skin thin and is soft.

Penis: The main function is urinates, a row of seminal fluid and carries on the sexual intercourse, is the sex act main organ, the penis skin is extremely thin, under the skin does not have the fat, has the activity and extends the nature, the penis sponge body ??may attach into the blood, when asexual impulse, penis soft, ties (stirs up the penis sponge body when the nature ??in the blood to increase, the penis expands, increases thickly changes hardly erects, when flows in blood and backflow blood isochronism, then the penis continues to erect.

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