Question

Endometrium is the lining of
A. Testis
B. Urinary bladder
C. Uterus
D. Ureter

Answer 1

The endometrium is the inner epithelial layer that has a basal layer and a functional layer; the functional layer thickens and then is sloughed periodically. At a certain stage, the uterine glands and blood vessels in the endometrium can further increase in size and number to provide an internal environment required.

Complete answer: -The testes are two oval-shaped organs in the male reproductive system that are contained in a sac of skin called the scrotum and are responsible for making testosterone and sperm. Coiled masses of tubes called seminiferous tubules that are responsible for producing the sperm cells are present within the testes.
-The urinary bladder is a hollow muscular organ and distensible organ that is present in the pelvic cavity in humans that stores urine from the kidneys before disposal by urination. The inner wall of the bladder is called urothelium that is a type of transitional epithelium made up of three to six layers of cells that become more cuboidal or flatter depending on whether the bladder is empty or full, and additionally, these are lined with a mucous membrane consisting of a surface glycocalyx that protects the cells beneath it from urine.
-The uterus or commonly called a womb is a major female hormone-responsive secondary sex organ of the reproductive system in humans, the lower end of, the cervix which is the lower end of the uterus, opens into the vagina, while the fundus, the upper end, is connected to the fallopian tubes. The fetus develops during gestation in the uterus and it provides the proper environment for its development. The uterine wall is formed by the three layers. The endometrium is the innermost layer made up of epithelial cells in the uterus that has a basal layer and a functional layer; the functional layer thickens and then is sloughed during the menstrual cycle or estrous cycle. The other two outer layers are myometrium and perimetrium.

-There are two ureters connected to each kidney and the ureter is a tube that carries urine from the kidney to the urinary bladder.
Hence, the correct answer is option C..

Note: During pregnancy, the uterine glands and blood vessels in the endometrium further increase in size and number and form the decidua. The placenta is formed by the fusion of vascular spaces, which supplies oxygen and nutrition to the embryo and fetus.