Exam 17: Energy Balance and Temperature Regulation

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The developing sperm cells arising from a single primary spermatocyte remain joined by cytoplasmic bridges until development is complete so that a Y-bearing sperm can be provided with essential products coded for by the X chromosome.

(True/False)
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Sperm are able to penetrate the zona pellucida only after binding with specific receptor sites on the surface of this layer.

(True/False)
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Which statement does NOT correctly describe spermatogenesis and oogenesis?

(Multiple Choice)
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Which of these factors is NOT associated with sex determination and differentiation in a male?

(Multiple Choice)
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Although discovered in the semen, prostaglandins are ubiquitous, locally acting, chemical messengers that exert widespread effects throughout the body.

(True/False)
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Match the items labelled a. through u. with the descriptions labelled 32. through 57. (Options may be used more than once or not at all, but there is only one correct response for each.) -organ of exchange between mother and fetus

(Short Answer)
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Oogonia continually multiply to replenish the ovarian supply of gamete precursor cells.

(True/False)
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Which structure(s) below secrete(s) male sex hormone?

(Multiple Choice)
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Several hundred million sperm may reach maturity daily.

(True/False)
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The Sertoli cells provide nourishment for the developing sperm cells.

(True/False)
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Which of these statements does NOT describe oxytocin?

(Multiple Choice)
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In the absence of masculinizing factors, a female reproductive tract and external genitalia develop regardless of the genetic sex of the individual.

(True/False)
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Which of these factors does NOT contribute to follicular development and estrogen secretion?

(Multiple Choice)
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Which of the following is NOT a component of the overall ejaculatory response?

(Multiple Choice)
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According to the leading proposal, what initiates parturition?

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Human cells have 23 pairs of sex chromosomes.

(True/False)
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Which of the following statements describes spermatogenesis?

(Multiple Choice)
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Inhibin is produced by the Sertoli cells, and selectively inhibits the secretion of FSH from the anterior pituitary gland.

(True/False)
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One primary oocyte containing 46 doubled chromosomes yields only one ovum containing 23 unpaired chromosomes.

(True/False)
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The process of oogenesis (from undifferentiated germ cell to released ovum) takes anywhere from 11 to 50 years to complete.

(True/False)
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