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27 Cards in this Set
- Front
- Back
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Testes
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primary sex organs;
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scrotum
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skin-covered sac that provides the testes with a cooler environment than body temperature; 3 degrees below normal body temp
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raphe
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separates the two scrotal sacs
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dartos muscle
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layer of smooth muscle that is part of the wall of the scrotum
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spermatic cord parts
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testicular artery, pampiniform plexus, cremaster muscle and fascia, autonomic nerves; originates at the inguinal canal;
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testicular artery
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branch of the abdominal aorta
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pampiniform plexus
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a network of veins surrounding the testicular artery
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cremaster muscle and fascia
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formed from muscle fiber extensions of the internal oblique muscle
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autonomic nerves
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travel with plexus and connect to the testes
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ductus deferens
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passageway from the epididymis for sperm to travel through
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functions of testes
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produce sperm & produce androgens (male sex hormones)
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tunica vaginalis
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serous membrane that covers each testes anteriorly and laterally; two layers - parietal and visceral
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tunica albuginea
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fibrous capsule that covers the testis- deep to the visceral layer and in contact with testis; whitish
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mediastinum testis
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tunica albuginea projects into this; blood vessels, lymphatic vessels, and some other nerves enter and leave
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septa
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tunica albuginea projects internally into the testes to form this...
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lobules
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septa divides to form 250 of these
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seminiferous tubules
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each lobule contains 4 of these convoluted tubules
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sustentacular cells
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in seminiferous tubules; nondividing support cells that assist with sperm development
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interstitial cells
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reside in interstitial space and produce hormones called androgens
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interstitial space
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spaces external to and in between seminiferous tubules
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spermatogenesis
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overall process of sperm development; spermatogonium, primary spermatocytes, secondary spermatocytes, spermatid, sperm
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spermiogenesis
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maturation process to become sperm
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ducts in male reproductive system
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rete testis, efferent ductulues, epididymis, ductus deferens, ejaculatory duct, urethra
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rete testis
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receive sperm from seminiferous tubules
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efferent ductules
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connect rete testis to epididymis
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epididymis
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head, body, tail; long convoluted duct of epididymis; stores sperm and serves in the maturation process of sperm
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ductus deferens
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(vas deferens) enlarges to form the ampulla, then forms the ejaculatory duct
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