Question

The two muscles which help in thermoregulaton of the scrotum moving it up or down depending on outside temperature are

• A. Gastrocnemius and Flexor longus
• B. Cremaster and Danos muscle
• C. Adductor longus and Abductor flexor
• D. Flexor longus-Cremaster

Answer 1

The correct option is B Cremaster and Danos muscle

B. Cremaster and Danos muscle

Reason: The cremaster muscle, found in human males, is a thin layer of striated muscle found in the inguinal canal and scrotum between the external and internal layers of spermatic fascia. It surrounds the testis and spermatic cord. The cremaster muscle is a paired structure, there being one on each side of the body. The function of the cremaster muscle is to raise and lower the testes in order to regulate scrotal temperature for optimal spermatogenesis and survival of the resultant spermatozoa. It does this by increasing or decreasing the exposed surface area of the surrounding tissue, by allowing faster or slower dissipation of body heat. So the correct option is B.