homework 27 reproduction 後編

Which statement correctly describes this uterine layer?

Part of this layer is lost during the menstruation. （endometrium）

the corpus luteum

• Upon degeneration, the corpus luteum becomes the corpus albicans.

• Forms under stimulation of LH.

• An endocrine structure, secreting progestins such as progesterone, and some estrogens.

• It is yellow in color.

• After ovulation, the empty follicle initially collapses, and ruptured blood vessels bleed into its lumen.

The __________ of the uterus is the inferior portion that extends from the isthmus to the vagina.

cervix

The functions of the vagina include

• Serves as a passageway for the elimination of menstrual fluids

• Receives the penis during sexual intercourse and holds spermatozoa before they pass to the uterus

• Forms the lower portion of the birth canal through which the fetus passes during childbirth

What occurs when estrogen levels decline at menopause?

• Reduction in the size of the breasts

• Weakening of the connective tissue supporting the ovaries, uterus, and vagina

• Reduction in the size of the uterus

Which of the following age-related changes occurs during the male climacteric, which begins between ages 50 and 60?

Increase in circulating levels of FSH and LH

Which of the following processes begins before birth, accelerates at puberty and ends at menopause?

Oogenesis（卵子の形成）

a tertiary ovarian follicle

• A tertiary follicle is also called a primordial follicle.

• It develops by the 10^th – 14^th day of the ovarian cycle.

• The oocyte projects into a central chamber, called the antrum.

• A tertiary follicle is also called a "mature ovarian follicle" or a "Graafian follicle."

Which layer of the uterine wall is an inner glandular layer that changes with the various phases of the monthly uterine cycle?

Endometrium

Which structure of the female external genitalia contains erectile tissue homologous with the corpora cavernosa in the male?

Clitoris

What structure extends from the lateral wall of the uterus to the medial surface of the ovary?

Ovarian ligament

What are the ovaries?

Small, paired organs located near the lateral walls of the pelvic cavity

The free edge of the broad ligament that attaches to each uterine tube is known as which of the following?

Mesosalpinx

Which of the following ligaments extends from the lateral surface of the ovary past the uterine tube to the pelvic wall?

• Suspensory ligament

What occurs when estrogen levels decline at menopause?

• Reduction in the size of the breasts

• Reduction in the size of the uterus

• Weakening of the connective tissue supporting the ovaries, uterus, and vagina

Which of the following age-related changes occurs during the male climacteric, which begins between ages 50 and 60?

Increase in circulating levels of FSH and LH

What is an oogonium?

• Stem cell