. Transports semen to outside of the body Epididymis
2. Conducts sperm and seminal fluid to urethra Ductus deferens
3. Contraction of muscularis moves the sperm Ejaculatory duct
4. Stores sperm until they are fully mature Urethra
4
3
2
1
Put sperm development in order, beginning with the germ (stem) cell from which all sperm develop.
Spermatid
Spermatogonia
Secondary spermatocyte
Spermatozoa
Primary spermatocyte
4
1
3
5
2
The ridge that is visible externally along the midline of the scrotum is called the
scrotal cord.
perineum.
septum.
tunica albuginea.
raphe.
e
An erection of the penis is caused by
semen pressure from the testes and ductus deferens.
ejaculatory muscles.
blood filling the erectile bodies and compressing the veins.
muscle flexion of the penile muscles.
increased secretions of lymph into the spongy
c
The function of the dartos and cremaster muscles is to
move sperm along the ductus deferens.
attach the penis to the body wall.
help the testes descend into the scrotum prior to birth.
regulate the temperature of the testes.
produce erections.
d
Sperm require seminal fluid in order to survive in the acidic environment of the vagina.
True
False
t
Which is not part of the spermatic cord?
Pampiniform plexus
Testicular artery
Cremaster muscle
Ductus deferens
Dartos muscle
e
Match the male accessory gland with its components.
1. Citric acid, seminalplasmin, PSA Seminal vesicles
2. Secretion lubricates and buffers the urethra Prostate glands
3. Fructose, prostaglandins, and bicarbonate Bulbourethral glands
3
1
2
Sperm are produced in the
epididymis.
seminiferous tubules.
rete testis.
efferent ductules.
seminal vesicles.
b
What part of a spermatozoon contains the nuclear material?
Tail
Flagellum
Midpiece
Acrosome cap
Head
e
The interstitial cells in the testes
support and protect the developing sperm cells.
undergo mitosis to produce primary spermatocytes.
convert fructose to glucose to nourish the sperm.
secrete testosterone.
form the lining of the seminiferous tubules.
d
Which of the male accessory glands encircles the urethra?
Bulbourethral gland
Prostate gland
Seminal vesicle
Urethral gland
Cowper's gland
b
The acrosome cap contains
testosterone.
nutrients to sustain the sperm.
enzymes to allow penetration into the oocyte.
buffers to neutralize the acidity of the female reproductive tract.
mitochondria to provide energy for movement.
c
An erection is the result of parasympathetic innervation, and ejaculation is the result of sympathetic innervation.
True
False
t
Which of these male reproductive structures is unpaired (meaning there's only one in the body)?
Prostate gland
Seminal vesicle
Epididymis
Bulbourethral gland
Corpus cavernosum
a