Question

Failure of testis to descend into the scrotum is called:

• A. Atresia
• B. Cretinism
• C. Amenorrhea
• D. Cryptorchidism

Hint:

{Key Point for Exams:} {Cryptorchidism} = Undescended testis. Remember that proper sperm formation requires a temperature slightly lower than body temperature, which is maintained in the {scrotum}.

Answer 1

The Correct Option is D

Concept:
During fetal development in males, the testes develop in the abdominal cavity. Before birth or shortly after birth, they normally descend into the scrotum. The scrotum maintains a temperature about 2–2.5°C lower than body temperature, which is essential for normal sperm production. If one or both testes fail to descend into the scrotum, the condition is known as cryptorchidism. This condition may lead to infertility if not corrected because proper temperature regulation is required for spermatogenesis.
Step 1: Understanding the normal process.
Normally, testes migrate from the abdominal cavity to the scrotal sac during development.
Step 2: Identifying the abnormal condition.
If this descent does not occur, the testes remain in the abdominal cavity or inguinal canal. This condition is termed: \[ Cryptorchidism \]
Step 3: Eliminating incorrect options.

• (A) Atresia $\rightarrow$ Absence or closure of a normal body opening
• (B) Cretinism $\rightarrow$ Hypothyroidism in infants
• (C) Amenorrhea $\rightarrow$ Absence of menstruation in females
• (D) Cryptorchidism $\rightarrow$ Failure of testes to descend into scrotum (Correct)

Final Answer: \(\boxed{\text{Cryptorchidism}}\)