BIOB34H3 Lecture Notes - Tunica Vaginalis, Spermatic Cord, Corpus Spongiosum Penis
Document Summary
Gonads are the primary sex organs and produce gametes: in typical female ovaries produce eggs, in typical male testes produce sperm, gonads also secrete sex hormones. Intersex and other differences from typical: typical male. Scrotum: sac of skin with superficial fascia, two compartments, dartos muscle (wrinkles skin) and cremaster muscle (elevates testes) control temperature for sperm production. Spermatic cord contains nerves, blood vessels, ducts. Duct system: epididymis, sperm mature and are stored, ductus (vas) deferens, runs through spermatic cord into pelvic cavity, transports sperm, urethra, transports sperm out of body, three regions - prostatic, membranous, penile. Penis: delivers sperm to female tract, contains spongy ct and smooth muscle filled with vascular spaces, corpus spongiosum and corpora cavernosa - fill with blood during erection, typical female. Ovaries: supported by ligaments, surrounded by tunica albuginea covered with cuboidal cells, cortex has follicles with gametes, medulla has blood vessels and nerves.
