2006-12-20 19:03:11 · 18 answers · asked by SHANNON H 1 in Health ➔ Men's Health
The penis (plural penises, penes) is an external male sexual organ. The penis is the male reproductive organ and for mammals additionally serves as the external male organ of urination.
The human penis is made up of three columns of erectile tissue:
the two corpora cavernosa (singular: corpus cavernosum) and
one corpus spongiosum
The corpus spongiosum lies on the underside (known also as the ventral side) of the penis; the two corpora cavernosa lie next to each other on the upper side (dorsal side).
The end of the corpus spongiosum is enlarged and bulbous-shaped and forms the glans penis. The glans supports the foreskin or prepuce, a loose fold of skin that in adults can retract to expose the glans. The area on the underside of the penis, where the foreskin is attached, is called the frenum (or frenulum).
The urethra, which is the last part of the urinary tract, traverses the corpus spongiosum and its opening, known as the meatus, lies on the tip of the glans penis. It is both a passage for urine and for the ejaculation of semen. Sperm is produced in the testes and stored in the attached epididymis. During ejaculation, sperm are propelled up the vas deferens, two ducts that pass over and behind the bladder. Fluids are added by the seminal vesicles and the vas deferens turns into the ejaculatory ducts which join the urethra inside the prostate gland. The prostate as well as the bulbourethral glands add further secretions, and the semen is expelled through the penis.
The raphe is the visible ridge between the lateral halves of the penis, found on the ventral or underside of the penis, running from the meatus (opening of the urethra) across the scrotum to the perineum (area between scrotum and anus).
The human penis differs from those of some other mammals. It has no baculum, or erectile bone; instead it relies entirely on engorgement with blood to reach its erect state. It cannot be withdrawn into the groin, and is larger than average in the animal kingdom in proportion to body mass.
2006-12-20 19:05:33 · answer #1 · answered by Michele A 5 · 3⤊ 2⤋
Yes..the penis IS a muscle....it is made of tissue and muscle....hence when it is soft. Yet, when an erection occurs....blood is trapped in the penile area, and constricted their until the MUSCLES are relaxed....thru ejaculation. Im sure you can look up the specifics about the penis thru some educational sites online! Hope this helps!
2006-12-21 03:07:44 · answer #2 · answered by SundanceLowe 2 · 1⤊ 1⤋
Yes, the penis is a special kind of muscle that is very porous. When the pores fill with blood it becomes erect. When the pores are empty it is flaccid or soft.
2006-12-21 11:23:35 · answer #3 · answered by Geo 6 · 0⤊ 1⤋
It is composed of erectile tissue, glands and a urethra. Nope, not muscle. The blood vessels have valves that close off when the brain signals it to become erect. They open back up and it goes soft again.
2006-12-21 03:06:47 · answer #4 · answered by Kaari P 2 · 0⤊ 1⤋
the Love Muscle!!!
2006-12-21 05:36:30 · answer #5 · answered by SweetDeath! 3 · 0⤊ 2⤋
yea i think it is but i might be wrong but think of it this way when you tense the muscles in your arms they go hard and they lift up just like a penis
2006-12-21 03:05:22 · answer #6 · answered by Sammy T 2 · 2⤊ 4⤋
The Love muscle.........lol
2006-12-21 03:05:24 · answer #7 · answered by gotcha25 2 · 3⤊ 2⤋
no
2014-05-14 23:11:34 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Nope.
2006-12-21 07:29:18 · answer #9 · answered by Andy 5 · 0⤊ 0⤋
Yes of course.
2006-12-21 23:25:30 · answer #10 · answered by Anonymous · 0⤊ 1⤋