Which statement concerning the testes is true?
a. The lymphatic vessels of the testes drain into the abdominal lymph nodes.
b. The vas deferens is located along the inferior portion of each testis.
c. The right testis is lower than the left because the right spermatic cord is longer.
d. The cremaster muscle contracts in response to cold and draws the testicles closer to the body.
ANS: D
When it is cold, the cremaster muscle contracts, which raises the scrotal sac and brings the testes closer to the body to absorb heat necessary for sperm viability. The lymphatic vessels of the testes drain into the inguinal lymph nodes. The vas deferens is located along the upper portion of each testis. The left testis is lower than the right because the left spermatic cord is longer.
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