Chapter 22 Q & A
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the primary sex organs? | The testes in males and the ovaries in females, they produce and house the sex cells
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| What are secondary sex organs? | They provide the route by which sex cells unite
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| What is the function of the testes? | Generate sperm and secrete the male sex hormone testosterone
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| What id the function of the seminal vesicles? | Secrete a thick, yellowish fluid which comprises about 60% of semen
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| What is the function of the prostate gland? | Secretes a thin, milky fluid that comprises about 30% of the fluid part of semen and adds volume to the semen
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| What is the function of the bulbourethral glands? | Secrete a clear fluid during sexual arousal that is a lubricant for intercourse and neutralizes the acidity of residual urine in the urethra
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| What is the function of the penis? | It deposits sperm in the female vagina
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| What is the function of the ovaries? | Produce eggs cells and sex hormones
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| What is the function of the fallopian tubes? | It is the usual site for egg fertilization
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| What is the function of the uterus? | Houses and nutures a growing embryo
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| What is the function of the vagina? | Serves as a receptacle for the penis and sperm, a route for the discharge of menstrual blood, and the passageway for the birth of a baby
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| What happens in the ovarian cycle during the last days of menstruation? | The hypothalamus releases GnRH which stimulates the anterior pituitary to release FSH and LH
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| What happens in the ovarian cycle during the follicular phase? | As a follicle developes it secretes estrogen and progesterone. As it matures, it migrates to the surface of the ovary. Estrogen levels peak, triggering a spike in LH
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| What happens in the ovarian cycle during ovulation? | The follicle ruptures and releases the ovum. The fimbriae of the fallopian tube catch the emerging oocyte
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| What happens in the ovarian cycle during the luteal phase? | The corpus luteum is formed. The endometrium thickens and becomes more vascular. If fertilization does not occur, the luteum degenerates into corpus albicans
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| What happens in the ovarian cycle during menstruation? | Estrogen & progesterone levels plummet and the endometrium sloughs off. FSH levels begin to rise and the cycle starts again
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| What happens in the menstrual phase of the menstrual cycle? | The endometrium sheds its functional layer. This consists of 3-5 days
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| What happens in the proliferative phase of the menstrual cycle? | Menstruation ceases, estrogen levels rise, and the endometrium thickens to 2-3 mm. This is during days 6-14
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| What happens in the secretory phase of the menstrual cycle? | After ovulation, the functional layer thickens even more to about 5-6 mm, just right for a fertilized ovum. This occurs during days 15-26
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| What happens in the premenstrual phase of the menstrual cycle? | If fertilization doesn't occur, the corpus luteum atrophies and progesterone levels plummet. The endometrium becomes ischemic & necrotic, sloughing off the uterine wall. This forms the menstrual flow. This occurs during days 26-28
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| What is cryptorchidism? | Undescended testes. If they don't descend on their own during the first year of life, typically surgery is done. If left untreated, it could lead to sterility or testicular cancer
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| What is benign prostatic hyperplasia (BPH)? | Noncancerous enlargement of the prostate gland. Symptoms include difficulty urinating, slowing of the urine stream, and frequent urination
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| How is prostate cancer diagnosed? | By digital rectal exam as well as by blood tests for PSA & acid phosphatase
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| Are there symptoms of prostate cancer? | It usually goes undetected because the malignant tumor grows slowly and tends to develop outside of the gland, so it doesn't obstruct urine flow.
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| What are the causes of male infertility? | Primarily a low sperm count. Size, shape, and motility of sperm also influence fertility
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| What should the total volume of semen per ejaculation be? | At least 2ml and contain at least 40 million sperm. 75% should be alive, 30% should have a normal shape, 25% should be swimming rapidly forward, & 50% should be swimming forward, if only sluggishly
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| What indicates infertility? | A sperm count lower than 20 million
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| What are the symptoms of breast cancer? | A lump in the breast or armpit; redness, dimpling, or puckering of the skin of the breast; or drainage from the nipple
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| Who are at risk for breast cancer? | Women with a family history of breast cancer, women who begin menstruating before 12, go thru menopause after 55, and women who have never had children or had them after age 30. Other risk factors are aging, excessive alcohol use, & exposure to radiation
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| What is menopause? | When menstruation ceases, usually about the age of 45 or 50. It is associated with declining levels of estrogen & progesterone. As a result, the uterus, vagina, & breast atrophy. Common symptoms are hot flashes and mood changes
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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