Chapter 11
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
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What are the primary sex organs and their function
Gonads produce gametes; testes in males, ovaries in females
What is the scrotum
The skin-covered pouch holding the testicles
Why is the testes outside the body cavity
Sperm production requires a temperature 2 degrees lower than normal body temp
What are lobules and seminiferous tubules
Lobules contain the seminiferous tubules. Seminiferous tubules are tightly coiled duct where sperm is produced.
What is the epididymis and it’s function
A highly folded tubule behind the testis in which sperm mature
What is the vas deferens
the duct that carries sperm away from the testis. Wraps around the bladder
What 3 glands make up the semen that nourish the sperm
The seminal vesicles, the prostate gland and the bulbourethral gland
What are the seminal vesicles
pouch-like organs located behind the bladder. It secretes a think fluid made of sugar that makes up 60% of semen
What is the prostate gland
where the two vasa deferentia join the urethra. It surrounds the urethra just below the bladder. It secretes a thin, milky, alkaline fluid that also becomes part of the semen.
What are the bulbourethral glands
located beneath the prostate on either side of the urethra. secrete clear mucus that makes up a small amount of the semen
How does the erectile tissue work
Contains sponge-like spaces that fill with blood during sexual arousal
What is the stroma
The tissue that composed the ovaries
What are germ cells and the follicle
Germ cells are cells in the ovary that can develop into ova. The follicle is the secretory gland. As follicles mature, they move to the surface of the ovary and rupture.
What are fallopian tubes
tubes connecting the ovaries to the uterus that carry ova.
What are fimbriae
Finger-like projections lining the opening of the ovary. They guide the egg to the uterine tube. Cilia also line the tube to guide the eggs
What is the endometrium
The soft mucous membrane lining the walls of the uterus
What is the hymen
A fold of tissue partially covering the opening of the vagina - may be torn during first sexual intercourse
What makes up the vulva
Labia majora - two fleshly folds of skin containing glands that secrete oils labia minora - lie between labia majora, lack hair and fat Clitoris - contains erectile tissue, blood vessels and nerves, sensitive to touch
What is the process of gamete development called and it’s two types called.
gametogenesis; spermatogenesis for sperm and oogenesis for ova
What is and where does spermatogenesis occur
Inside the seminiferous tubules of each testis. It’s the maturation of spermatids into sperm
What are spermatogonia
Immature cells lining the seminiferous tubules. After puberty, they divide continuously by mitosis to provide new cells for the production of sperm
What are primary spermatocytes
Daughter cells of spermatogonia (mitosis) that are moved towards the center of the tubules where they undergo a period of growth and become enlarged
What are secondary spermatocytes
Primary spermatocytes like spermatogonia undergo the first meiotic division to form secondary spermatocytes
What are spermatids
Daughter cells of secondary spermatocytes from the second meiotic division. Four spermatids are produced; they mature into sperm in the epididymis