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A & P 2 - Male Reproductive System
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42
Anatomy
Undergraduate 4
02/16/2012

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Cards

Term
What are the 7 points in the route that sperm take from its site of production to its exit from the body?
Definition
1. seminiferous tubules
2. rete testes
3. vasa efferentia
4. epididymis
5. vas deferens
6. ejaculatory duct
7. urethra
Term
What is the function of the rete testes?
Definition
to collect sperm
Term
What is the function of the vasa efferentia?
Definition
to perforate the tunica albugenia
Term
Where is the epididymis located?
Definition
on the superior margin of the testes
Term
What is the function of the epididymis?
Definition
sperm maturation
sperm storage
reabsorbs unused sperm
Term
What is the major reproductive duct?
Definition
the vas deferens
Term
What is the common passageway for ejaculate and urine?
Definition
urethra
Term
Where is the urethra located?
Definition
inferior to the urinary bladder
Term
Where does the urethra run?
Definition
through the prostate gland and the corpus spongiosum of the penis
Term
How long is the urethra?
Definition
approximately 8 inches
Term
What is a vasectomy?
Definition
a disabling of the vas deferens, you still produce aperm and ejaculate but there is no sperm in the ejaculate
Term
Where are the seminal vesicles located?
Definition
lateral to the urinary bladder
Term
What do the seminal vesicles produce?
Definition
about 60% of ejaculate
Term
What is ejaculate composed of and why is it important?
Definition
it is high in fructose which helps nourish sperm while they are in the female reproductive tract
Term
Where is the prostate gland located?
Definition
inferior to the urinary bladder
Term
What is the function of the prostate gland?
Definition
it activates sperm and helps to neutralize the acidity of the vagina
Term
Where are the bulourethral/Cowper's glands located?
Definition
at the base of the root of the penis
Term
The bulbourethral/Cowper's glands secrete 5% of ejaculate - when and why?
Definition
just prior to ejaculation to neutralize the acidity of the urethra
Term
The penis is composed of 3 columns of...
Definition
erectile tissue
Term
What tissue is laterally on the penis?
Definition
corpora cavernosa
Term
What tissue is in the middle of the penis?
Definition
corpus spongiosum
Term
The head is also called the ______ and it is composed of _________.
Definition
glans penis
corpus spongiosum
Term
What is the name for all 3 columns?
Definition
the shaft
Term
What is the root mostly composed of?
Definition
corpus spongiosum
Term
What is the most sensitive part of the penis?
Definition
the glans penis (head)
Term
What is the head covered by?
Definition
prepuce (foreskin)
Term
The word penis comes from the Latin word for
Definition
tail
Term
The penis functions as the organ of
Definition
copulation
Term
What is a circumcision?
Definition
the removal of prepuce
Term
What is the scrotum?
Definition
a skin and hair covered sac
Term
What is the function of the scrotum?
Definition
to maintain the testes at the proper temp for sperm formation?
Term
What is the proper temp for sperm formation?
Definition
less than body temp
Term
What does the scrotum contain?
Definition
involuntary smooth muscle tissue
Term
When is the scrotum formed?
Definition
during embryonic development
Term
What the the scrotum homologous to in the female?
Definition
labia majora
Term
Where is the testes formed?
Definition
in the pelvic cavity
Term
When does the testes descend?
Definition
during the 7th gestational month
Term
The testes are the primary
Definition
male sex organs
Term
The seminiferous tubules function for
Definition
sperm production
Term
The interstitial cells function for
Definition
testosterone production
Term
The spermatic cord contains (3)
Definition
blood vessels
nerves
vas deferens
Term
The spermatic cord is the link between
Definition
the body cavity and the scrotum
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