Question

How do u think the uterus accommodates a foetus which S almost 20 inches long and 3-4 kilograms in weight when fully developed?


Please answer me.


It s also asked in my book

Answer 1

the uterus is made of smooth muscle lined with glands. The smooth muscle is designed to contract during labor, orgasm, and menstruation. “The glands grow thicker during the month with the stimulation of ovarian hormones and finally shed off during the menstrual cycle if no pregnancy occurs“The cervix is the portion of the uterus that extends into the vagina. It is made of fibro-muscular tissue and is designed to dilate in order to allow the baby to exit the uterus.the uterus is not only where babies grow, but it has other important roles as well. “It also plays a role in blood flow to the ovaries, support of the vagina, bladder, and rectum and, for some women, can be important for normal sexual function. “For instance, some women at risk of premature labor are asked to be careful about intercourse because the contractions of orgasm can trigger contractions. Those contractions can be an important part of a woman’s sexual experience when she isn’t pregnant as well.”

The uterus has a lining that thickens up in response to hormones produced by the ovaries. If pregnancy doesn’t occur, then one of the hormones that prepares the lining for a growing baby will also help the lining come off, which results in a period. “When a woman becomes pregnant, blood flow increases to the uterus and the uterus increases in size, continuing to enlarge with the baby
After the baby is born, the uterine muscle fibers start to contract, and over the course of eight to 10 weeks it shrinks back to just a little bigger than it was before she got pregnant.