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| The ''penis'' is the male copulatory organ, and, in mammals, the male organ of urinary excretion. | |||
| :<b>Penis</b> | |||
| ⚫ | The penis is built of three columns of erectile ]: | ||
| Penis - male copulatory organ.<br> | |||
| ⚫ | The penis is built of three columns of erectile ] |
||
| * the two corpora cavernosa and | * the two corpora cavernosa and | ||
| * one corpus spongiosum which lies below them | * one corpus spongiosum which lies below them. | ||
| The end of corpus spongiosum is enlarged and cone-shaped and forms so called | The end of corpus spongiosum is enlarged and cone-shaped and forms so called | ||
| ]. |
]. | ||
| Erection is achieved by influx of blood into a labirynth of ]s. The | Erection is achieved by influx of blood into a labirynth of ]s. The | ||
| vessels are distended and reflex muscle contraction around veins traps blood in | vessels are distended and reflex muscle contraction around veins traps blood in | ||
| vessels of erectile tissue. |
vessels of erectile tissue. | ||
| The ] that is the last part of urinary tract traverses the corpus | The ] that is the last part of urinary tract traverses the corpus | ||
| spongiosum and its end lies on the tip of the ]. Apart from being | spongiosum and its end lies on the tip of the ]. Apart from being | ||
| a passage for ] it also is for ] ejaculation. |
a passage for ] it also is for ] ejaculation. | ||
| A loose fold of skin partly covering the glans is called ]. | A loose fold of skin partly covering the glans is called ]. | ||
| Related subjects : ], ], ], | Related subjects : ], ], ], | ||
| ]. | ]; ]; ]. | ||
| --- | --- | ||
Revision as of 05:29, 23 May 2001
The penis is the male copulatory organ, and, in mammals, the male organ of urinary excretion.
The penis is built of three columns of erectile tissue:
- the two corpora cavernosa and
- one corpus spongiosum which lies below them.
The end of corpus spongiosum is enlarged and cone-shaped and forms so called glans penis.
Erection is achieved by influx of blood into a labirynth of blood vessels. The vessels are distended and reflex muscle contraction around veins traps blood in vessels of erectile tissue.
The urethra that is the last part of urinary tract traverses the corpus spongiosum and its end lies on the tip of the glans penis. Apart from being a passage for urine it also is for semen ejaculation.
A loose fold of skin partly covering the glans is called prepuce.
Related subjects : impotence, priapismus, circumcision, sexual intercourse; clitoris; vagina.
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Is this true of all penises, or just human penises? If human only, should this be a subcategory under human anatomy?