MALE GENITALIA Flashcards
(86 cards)
Male external genitalia is consist of what?
penis and scrotum
It is the male reproductive organ
penis
What are the three cylindrical masses of vascular erectile tissue that are bound together by fibrous tissue?
two corpora cavernosa - dorsal side
corpus spongiosum - ventral side.
hoodlike skin that you can see if the man has not been circumcised
foreskin or prepuce
It is a fold of the foreskin that extends ventrally from the urethral meatus
Frenulum
is a thin-walled sac that is suspended below the
pubic bone, posterior to the penis. This darkly pigmented structure contains sweat and sebaceous glands and consists of folds
of skin (rugae) and the cremaster muscle
scrotum
what is the function of the scrotum?
- protective covering for the testes, epididymis, and vas deferens
- helps to maintain the cooler-than-body temperature necessary for production of sperm (less than 37°C).
a pair of ovoid-shaped organs, similar to the ovaries in the woman, that are approximately 3.7 to 5 cm long, 2.5 cm wide, and 2.5 cm deep
testes
what is the function of testis
produce spermatozoa and male sex hormone testosterone
It contains blood vessels, lymphatic vessels, nerves, and the vas deferens (or ductus deferens), which transports spermatozoa away from the testis
Spermatic cord
it is a comma-shaped, coiled, tubular structure that curves up over the upper and posterior surface of the testis. This is where the spermatozoa mature
epididymis
is a firm, muscular tube that is continuous with the lower portion of the epididymis. It provides passage for transporting sperm from the testes to the urethra for ejaculation.
vas deferens
protrusion of loops of bowel through weak areas of the musculature
hernias
is a tube-like structure (4–5 cm or
1.5–2 inches long in an adult) through which the vas deferens travels as it passes through the lower abdomen. This is where you can usually see hernias
Inguinal or groin area
is the final segment of the digestive system
anal canal
what are the two sphincters in the anus
The external sphincter is composed of skeletal muscle and is under voluntary control.
The internal sphincter is composed of
smooth muscle and is under involuntary control by the autonomic nervous system.
is approximately 2.5 to 4 cm in diameter, surrounding the neck of the bladder and urethra; it secretes a thin, milky substance that promotes sperm motility and neutralizes female acidic vaginal secretions
prostate gland
enlargement of the prostate gland that is common in men over the age of 40
Prostatic hyperlasia
These are rabbit-ear–shaped structures
that produce the ejaculate that nourishes and protects sperm. They are not normally palpable.
seminal vesicles
are mucus-producing, pea-sized organs located
posterior to the prostate gland. These glands surround and empty into the urethra. They are not normally palpable either.
Cowper’s gland / bulbourethral glands
usually happens in your abdomen or groin, when one of your organs pushes through the muscle or tissue that contains it.
hernia
what disease indicates heavy, dragging feeling in the scrotum?
testicular tumor or scrotal hernia
are collections of blood within the scrotal sac, but outside of the testis.
Scrotal hematocele
defined as the need for patients to get up at night on a regular basis to urinate.
Nocturia