Question

In mammals, the testis is posteriorly connected to the scrotal sac by an elastic cord called
 A)Spermatic cord
 B)Rachis
 C)Gubernaculum
 D)Ligament

Answer 1

Hint: As the scrotum and labia majora structure in guys and females individually, the gubernaculum helps in the plunge of the balls (both testicles and ovaries). The testicles plunge to a more prominent degree than the ovaries and eventually go through the inguinal channel.

Complete answer:
In warm-blooded animals in the undeveloped stage, the testis is posteriorly associated with the scrotal sac by a versatile line called gubernaculum. It helps in the plummet of testis during the seventh month of pregnancy. The spermatic line in guys is shaped by the vas deferens and encompassing tissue that gets from the profound inguinal ring down to every gonad.

Additional Information:
In guys:
The upper piece of the gubernaculum degenerates. The lower part continues as the gubernaculum testis ("scrotal tendon"). This tendon ties down the testis to the most second rate segment of the scrotum, tying it set up and restricting how much the testis can move inside the scrotum. This embroils Insl3 as a critical hormone in the development and separation of the gubernaculum to permit transabdominal relocation. Higher testicular temperatures related to cryptorchidism are related to decreased ripeness.
In females: The gubernaculum has two minimal leftovers in females, the ovarian tendon and the round tendon of the uterus (ligamentum teres uteri) which individually serve to help the ovaries and uterus in the pelvis. Improvement of the gubernaculum in female mice overexpressing Insl3 causes plunged ovaries and decreased ripeness. This ovarian plummet is more articulated by the extra organization of dihydrotestosterone, which smothers the advancement of the cranial suspensory tendon. Hence, upkeep of the cranial suspensory tendon forestalls stomach movement of the ovaries
So the correct answer is ‘Gubernaculum’.

Note: The combined gubernaculum are early-stage structures that start as undifferentiated mesenchyme appending to the caudal finish of the balls (testicles in guys and ovaries in females). Cryptorchidism (undescended testicles) are seen in Insl3-invalid male mice.