Access over 20 million homework & study documents

search

71923562 the male reproductive system

Content type
User Generated
Rating
Showing Page:
1/26
The Male Reproductive System
The purpose of the organs of the male reproductive system is to perform the following functions:
To produce, maintain, and transport sperm (the male reproductive cells) and protective fluid (semen)
To discharge sperm within the female reproductive tract during sex
To produce and secrete male sex hormones responsible for maintaining the male reproductive system
Unlike the female reproductive system, most of the male reproductive system is located outside of the body. These external
structures include the penis, scrotum, and testicles.
Penis: This is the male organ used in sexual intercourse. It has three parts: the root, which attaches to the wall of the abdomen; the
body, or shaft; and the glans, which is the cone-shaped part at the end of the penis. The glans, also called the head of the penis, is
covered with a loose layer of skin called foreskin. This skin is sometimes removed in a procedure called circumcision. The opening
of the urethra, the tube that transports semen and urine, is at the tip of the penis. The penis also contains a number of sensitive
nerve endings.

Sign up to view the full document!

lock_open Sign Up
Showing Page:
2/26
The body of the penis is cylindrical in shape and consists of three circular shaped chambers. These chambers are made up of
special, sponge-like tissue. This tissue contains thousands of large spaces that fill with blood when the man is sexually aroused. As
the penis fills with blood, it becomes rigid and erect, which allows for penetration during sexual intercourse. The skin of the penis is
loose and elastic to accommodate changes in penis size during an erection.
Semen, which contains sperm (reproductive cells), is expelled (ejaculated) through the end of the penis when the man reaches
sexual climax (orgasm). When the penis is erect, the flow of urine is blocked from the urethra, allowing only semen to be ejaculated
at orgasm.
Scrotum: This is the loose pouch-like sac of skin that hangs behind and below the penis. It contains the testicles (also called
testes), as well as many nerves and blood vessels. The scrotum acts as a "climate control system" for the testes. For normal sperm
development, the testes must be at a temperature slightly cooler than body temperature. Special muscles in the wall of the scrotum
allow it to contract and relax, moving the testicles closer to the body for warmth or farther away from the body to cool the
temperature.
Testicles (testes): These are oval organs about the size of large olives that lie in the scrotum, secured at either end by a structure called the
spermatic cord. Most men have two testes. The testes are responsible for making testosterone, the primary male sex hormone, and for
generating sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubes are responsible for producing sperm
cells.
The internal organs of the male reproductive system, also called accessory organs, include the following:
Epididymis: The epididymis is a long, coiled tube that rests on the backside of each testicle. It transports and stores sperm cells
that are produced in the testes. It also is the job of the epididymis to bring the sperm to maturity, since the sperm that emerge from
the testes are immature and incapable of fertilization. During sexual arousal, contractions force the sperm into the vas deferens.
Vas deferens: The vas deferens is a long, muscular tube that travels from the epididymis into the pelvic cavity, to just behind
the bladder. The vas deferens transports mature sperm to the urethra, the tube that carries urine or sperm to outside of the body, in
preparation for ejaculation.

Sign up to view the full document!

lock_open Sign Up
Showing Page:
3/26

Sign up to view the full document!

lock_open Sign Up
End of Preview - Want to read all 26 pages?
Access Now
Unformatted Attachment Preview
The Male Reproductive System The purpose of the organs of the male reproductive system is to perform the following functions: • • • To produce, maintain, and transport sperm (the male reproductive cells) and protective fluid (semen) To discharge sperm within the female reproductive tract during sex To produce and secrete male sex hormones responsible for maintaining the male reproductive system Unlike the female reproductive system, most of the male reproductive system is located outside of the body. These external structures include the penis, scrotum, and testicles. • Penis: This is the male organ used in sexual intercourse. It has three parts: the root, which attaches to the wall of the abdomen; the body, or shaft; and the glans, which is the cone-shaped part at the end of the penis. The glans, also called the head of the penis, is covered with a loose layer of skin called foreskin. This skin is sometimes removed in a procedure called circumcision. The opening of the urethra, the tube that transports semen and urine, is at the tip of the penis. The penis also contains a number of sensitive nerve endings. The body of the penis is cylindrical in shape and consists of three circular shaped chambers. These chambers are made up of special, sponge-like tissue. This tissue contains thousands of large spaces that fill with blood when the man is sexually aroused. As the penis fills with blood, it becomes rigid and erect, which allows for penetration during sexual inter ...
Purchase document to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Anonymous
Excellent! Definitely coming back for more study materials.

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4