Regarding the male reproductive system, which of the following statements are accurate?
a. The testes are situated outside the abdominal cavity within the scrotum, which helps maintain a temperature 2-2.5°C higher than the normal internal body temperature.
b. Each testis has about 250 compartments called testicular lobules.
c. Each seminiferous tubule is lined on its inside by male germ cells (spermatogonia) and Leydig cells.
d. Leydig cells are located in the interstitial spaces and secrete androgens (testicular hormones).
e. The enlarged end of the penis is called the glans penis, which is covered by a loose fold of skin called the hymen.
f. The male accessory glands include paired seminal vesicles, a prostate, and paired bulbourethral glands.
