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Multiple Choice
A) gravity
B) hormonal action
C) peristaltic contractions
D) enzymatic activity
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Multiple Choice
A) the mature ovum is n,while the sperm is 2n
B) in oogenesis,one mature ovum is produced,and in spermatogenesis four mature sperm are produced from the parent cell
C) during spermatogenesis two more polar bodies are produced
D) spermatogenesis involves mitosis and meiosis,but oogenesis involves meiosis only
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Short Answer
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Multiple Choice
A) Erection is the result of vascular spaces in the erectile tissues filling with blood.
B) Expansion of the penile tissues results in dilation of the venous outflow.
C) Sympathetic impulses are responsible for causing penile arteriolar dilation,resulting in erection.
D) Ejaculation is the result of parasympathetic stimulation.
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Multiple Choice
A) testes
B) anterior pituitary gland
C) thalamus
D) hypothalamus
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Multiple Choice
A) corpus spongiosum
B) epididymis
C) ductus deferens
D) urethra
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Multiple Choice
A) fimbriae
B) infundibula
C) Graafian follicles
D) fallopian tubes
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Multiple Choice
A) estrogen is secreted by the developing follicle in the follicular phase of the cycle
B) a decrease in the levels of ovarian hormones signals menstruation
C) the corpus luteum is formed from the ruptured follicle after ovulation
D) FSH and LH directly promote development of the uterine endometrium
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Multiple Choice
A) vagina
B) uterus
C) ovary
D) fallopian tubes
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Multiple Choice
A) vesicular follicle growth
B) corpus luteum
C) development of endometrial cells
D) late in this phase,cervical mucus becomes thin and crystalline
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Multiple Choice
A) a diet high in fat
B) sexually transmitted infections
C) nondescent of the testes
D) smoking
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Multiple Choice
A) There is no common duct between the reproductive system and the urinary system.
B) Ejaculation is a parasympathetic reflex resulting in no response by urinary contraction muscles.
C) The smooth muscle sphincter at the base of the urinary bladder closes.
D) There is no urge to urinate during sexual intercourse because of the suppression of LH by testosterone buildup in the blood.
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Multiple Choice
A) protect the ovaries
B) synthesize female hormones
C) receive,retain,and nourish a fertilized ovum
D) regulate the ovarian and menstrual cycles
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Multiple Choice
A) Ovulation usually occurs 14 days after the beginning of menses.
B) Rebuilding the endometrium is under the control of prolactin.
C) Fertilization usually occurs in the fallopian tube.
D) The monthly discharge of the uterus menses) is initiated by the decrease in secretion of female hormones.
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Short Answer
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Multiple Choice
A) involves a kind of cell division limited to the gametes
B) uses mitosis to produce gamete cells
C) is the process of releasing mature sperm cells into the lumen of the seminiferous tubule
D) results in the formation of diploid cells
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Essay
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Multiple Choice
A) spermatocytes
B) sustentacular cells
C) spermatogonia
D) interstitial cells
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Multiple Choice
A) because some blood contents are toxic to the spermatozoa
B) because spermatozoa and developing cells produce surface antigens that are recognized as foreign by the immune system
C) because immature sperm cells lose their motility when they encounter any blood component
D) Actually,the blood- testis barrier has no function.
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