Exam 5 - Male Reproductive System Flashcards
What do the primary sex organs do?
Produce gametes so testes or ovaries
What are secondary sex organs?
Organs other than gonads that are necessary for reproduction
What are the secondary sex organs of males?
System of ducts, glands; penis delivers sperm cells
What are secondary sex characteristics?
features that distinguish the sexes and influence mate attraction; developed at puberty
What are the secondary sex characteristics of both sexes?
Pubic and axillary hair and their associated scent glands, and the pitch of the voice
What is the secondary sex characteristics of males?
Facial hair, coarse and visible hair on the torso and limbs, relatively muscular physique
What is the perineum?
Diamond-shaped area between thighs
Where is the spermatic cord?
Connects testes into pelvic cavity
What are cremaster muscles and what do they do?
Strips of the internal abdominal oblique muscle; contracts in cold temp and relaxes in warm temp
What are dartos muscles?
Subcutaneous layer of smooth muscle that also contracts when cold and reduces surface are for heat loss
What are pampiniform plexus?
Extensive network of veins that removes heat from descending arterial blood
What are the testes?
Combined endocrine and exocrine glands that produce sex hormones and sperm
What is the tunica albuginea?
White fibrous capsule on testes
What are seminiferous tubules?
Ducts where sperm are produced
What line the seminiferous tubules?
Sustentacular cells between germ cells and interstitial cells between tubules
What is the blood-testis barrier(BTB)?
Tight junctions between sustentacular cells; separate sperm from immune system
What are the rete testis?
Network on the posterior side of the testis that collects sperm from seminiferous tubules
What are efferent ductules?
Ciliated ducts collecting sperm from rete testes to epididymis