Human Reproduction

The illustrated diagram refers to different part of human male reproductive system.

'A' in the figure depicts the testis, which is the site of formation of sperms (male gametes).

'B' designates the seminal vesicles, which are secretive in function and secretes the seminal fluid.

'C' depicts the vas deferens, which helps in transferring sperm from testis to the urethra.

'D' refers to the prostate gland, which release prostatic fluid that increases sperm motility.

The assertion is true. The pituitary gland releases oxytocin, which is essential during childbirth as it stimulates uterine contractions.

The reason is partially false. While it is correct that the pituitary gland releases vasopressin and anti-diuretic hormone (ADH), these hormones are primarily involved in water retention and blood pressure regulation, not in childbirth.

Thus, the correct option is :

Option C

If assertion is true, but reason is false.

The act of giving birth to a baby is called parturition. It is induced by a complex neuroendocrine mechanism. The signals originate from a fully developed foetus and the placenta, which induces mild uterine contractions.