271. is the term that refers to the first menstrual period.
272. During the menstrual the endometrium deteriorates.
273. An is the removal of the ovaries.
274. is the growth of endometrial tissue outside of the uterus.
275. Oxytocin causes contractions of the during birth .
276. The ovaries usually release ovum(s) per month.
277. The cervix is completely dilated at cm.
278. The human pregnancy lasts about weeks.
279. The uterus is also called the .
280. During labor the cervix flattens (effacement) and .
281. An is an incision in the perineum to enlarge the opening and prevent tearing during delivery.
282. The hormone that dominates during the early part of the menstrual cycle is .
283. The topmost part of the uterus is called the .
284. Each follicle contains granulosa cells that secrete estrogen.
285. hormone is called LH.
286. The inner lining of the uterus is called the .
287. After the birth, contractions continue until the separates from the uterus and is delivered.
288. The removal of the uterus is known as a .
289. The menstrual period is also referred to by the term .
290. The journey of the egg from ovary to uterus takes approx days.
291. A typical menstrual cycle lasts approx. days.
292. The menstrual cycle begins with the (st/th) day of the period.
293. The formation of a woman's eggs begins .
294. If the egg is fertilized, the placenta of the developing baby produces a hormone called , which maintains the corpus luteum causing it to secrete estrogen and progesterone, halting further menses until the baby is born.
295. The hormone is responsible for development of the female shape, development of the breasts, and stimulation of the reproductive organs.
296. stimulating hormone is called FSH.
297. After the ovum is released the empty follicle becomes the .
298. is the term that refers to the end of a woman's menstrual cycles.
299. As the ovum matures the surrounds it, forming a barrier that the sperm must penetrate.
300. The second stage of labor is called .