CHAPTER 22: THE REPRODUCTIVE SYSTEMS
IV.Male Reproductive Organs (continued): See Fig 22.1, page 882.
B.Epididymis: Also see Fig 22.12, page 890.
1.tightly coiled tube leading to vas deferens;
2.site of storage of sperm cells.
C.Vas (Ductus) Deferens: Also see Fig 22.13, page 890.
1.muscular tube which passes upward from testis, passes through parietal peritoneum (inguinal canal) and into abdominal cavity;
*The vas deferens, along with a testicular artery, autonomic nerves, testicular veins, lymphatic vessels, and the cremaster muscle pass upward within the inguinal canal and compose the spermatic cord; See Fig 22.2c, page 883.
2.fuses with duct from seminal vesicle to form ejaculatory duct (within prostate gland).
3.site of Vasectomy.
1.sac-like structure attached to vas deferens;
2.secretes an alkaline fluid that is rich in nutrients (fructose for sperm energy).
E.Prostate Gland: Also see Fig 22.14, page 891.
1.surrounds urethra below bladder;
2.secretes a milky, alkaline fluid which enhances sperm motility.
1.two small structures beneath prostate;
2.secrete lubricant for penis.
* Semen =sperm cells (from testes), alkaline fluids (from prostate), fructose (from seminal vesicle) and lubricant (from bulbourethral).
1.pouch of skin and subcutaneous tissue that encloses the testes;
2.The cremaster muscle is an extension of the internal oblique muscle that elevates the scrotum during sexual arousal and on exposure to cold.