Test: Reproductive System - 2 - MCAT MCQ

Luteinizing hormone (LH) is responsible for triggering ovulation in the female reproductive system. It stimulates the release of a mature egg from the ovary, which is then available for fertilization.

 Leydig cells, also known as interstitial cells, are responsible for producing and secreting testosterone in the male reproductive system. Testosterone is the primary male sex hormone and plays a crucial role in the development and maintenance of male reproductive tissues and characteristics.

The cervix serves as the passage for sperm to reach the uterus in the female reproductive system. It also plays a role in allowing menstrual flow to exit the uterus during menstruation and serves as the birth canal during childbirth.

The pituitary gland is responsible for the release of oxytocin during childbirth and breastfeeding. Oxytocin plays a crucial role in uterine contractions during labor and stimulates the let-down reflex for milk release during breastfeeding.

The ovaries are responsible for the production of eggs, also known as ova or oocytes, in the female reproductive system. Each month, an egg is released from the ovary during ovulation.

Estrogen is responsible for stimulating the development of the uterine lining, also known as the endometrium, during the menstrual cycle. It promotes the growth and thickening of the endometrium in preparation for potential implantation of a fertilized egg.

The testes are the primary male reproductive organs responsible for the production of sperm. Sperm production occurs within the seminiferous tubules of the testes.

The uterus is responsible for the implantation of a fertilized egg in the female reproductive system. It provides a suitable environment for the development and nourishment of a growing embryo and fetus.

The fallopian tubes, also known as the oviducts, are the site of fertilization in the female reproductive system. After ovulation, the released egg travels through the fallopian tubes, where it can be fertilized by sperm.

Estrogen is responsible for the development of secondary sexual characteristics in females. It promotes the growth of breast tissue, widening of the hips, and the onset of menstruation, among other changes associated with female puberty.