Discuss the structure of uterus giving its functions.
Answers
Structure of Uterus:-
The uterus is a thick-walled muscular organ capable of expansion to accommodate a growing fetus. It is connected distally to the vagina, and laterally to the uterine tubes.
The uterus has 3 parts;
Fundus: Top of the uterus, above the entry point of the uterine tubes.
Body: Usual site for implantation of the blastocyst.
Cervix: Lower part of uterus linking it with the vagina. This part is structurally and functionally different to the rest of the uterus.
Functions of the uterus include nurturing the fertilized ovum that develops into the fetus and holding it till the baby is mature enough for birth. The ferlized ovum gets implanted into the endometrium and derives nourishment from blood vessels which develop exclusively for this purpose. The fertilized ovum becomes an embryo, develops into a fetus and develops until childbirth.
The uterus provides structural integrity and support to the bladder, bowel, pelvic bones and organs as well. It separates the bladder and the bowels.
The networks of blood vessels and nerves of the uterus direct the blood flow to the pelvis and to the external genitalia, including the ovaries, vagina, labia, and clitoris for sexual response. The uterus is needed for uterine orgasm to occur.