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Chapter 21: The Male Reproductive System

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Which of the following accurately describes spermiogenesis?

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a. Occurs before puberty

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b. Involves stem cells, meiosis, and spermatogenesis

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c. Involves cytodifferentiation of early spermatids

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d. Occurs in diploid cells

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e. Results in the formation of primary spermatocytes

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A man with a pituitary gonadotrophic tumor causing hyposecretion of follicle-stimulating hormone (FSH) is most likely to exhibit which condition?

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a. No symptoms, since he has no ovarian follicles

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b. Loss of libido (sex drive)

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c. Low serum testosterone levels

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d. Low sperm count

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e. Prostatic hypertrophy

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Interstitial cells of Leydig have an important function in male gamete production. Because of this function, which of the following organelles is abundant within these cells?

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a. Lysosomes

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b. Smooth endoplasmic reticulum

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c. Peroxisomes

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d. Polyribosomes

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e. Golgi complexes

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While studying a germ cell line developed from a patient’s testicular biopsy, the researcher notes that colchicine-treated cells blocked in metaphase have 46 chromosomes. From which of the following regions of the male genital tract would you expect these cells to have originated?

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a. Within the rete testis

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b. At the basal lamina of the seminiferous tubule

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c. In the middle region of the germinal epithelium

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d. Within the adluminal compartment of the seminiferous tubule

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e. Within the straight tubules

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Which of the following organs is normally characterized by the accumulation of corpora amylacea with increasing age?

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a. Prostate

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b. Seminal vesicles

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c. Bulbourethral (Cowper) glands

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d. Epididymis

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e. Ductus (vas) deferens

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Within the male reproductive tract, stereocilia project from cells lining which of the following regions?

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a. Rete testis

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b. Seminiferous tubules

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