Health Sciences 3300A/B Study Guide - Final Guide: External Iliac Artery, Internal Iliac Artery, Vas Deferens
10 Apr 2017
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Document Summary
System of ducts transport, store and assist in maturation of sperm: epididymis, ductus deferens (vas deferens, ejaculatory ducts, urethra. Accessory sex glands secrete most of the semen volume: 2 seminal vesicles, prostate, 2 bulbourethral glands. Male gonads: testes produce male sex cells (sperm) and hormones (androgens like testosterone) External genitalia: penis copulatory (sex) organ. Passage for semen and urine: scrotum houses supports the testes. Primary sex structures: structure testes (gonads, function is to produce sex cells (sperm) Secondary sex structures: ducts, accessory glands, copulatory organ (sex organ) penis, function transmission of sperm. Fibromuscular sac situated posterior to the penis and below the pubic symphasis. Muscles: dartos muscle - smooth, involuntary muscle, cremaster muscle skeletal muscle. Function: thermoregulatory system for spermatogenesis (keeps the testes 3 degrees below body temperature for sperm production) Cold: dartos muscle tightens scrotum and the cremaster muscle contracts to draw the testes closer to the body for warmth.
