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Human Anatomy > Male Reproductive System > Flashcards

Male Reproductive System Flashcards

1
Q

Sac of skin and superficial fascia posterior to the penis that contains the testes.

A

Scrotum

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2
Q

Bands of skeletal muscle extending from the internal obliques that elevate the testes.

A

Cremaster muscle

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3
Q

Smooth muscle in the superficial fascia layer that wrinkles the skin of the scrotum.

A

Dartos muscle

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4
Q

The male gonad; organ in which sperm are produced.

A

Testes

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5
Q

Serous sac around the testes that develops from the peritoneum.

A

Tunica vaginalis

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6
Q

The white, fibrous capsule of the testes.

A

Tunica albuginea

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7
Q

Coiled tubes within the testes that are the actual site of sperm formation.

A

Seminiferous tubules

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8
Q

Complex network of branching tubes in the posterior testes which leads to the efferent ductules.

A

Rete testis

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9
Q

Cells in one of the stages of spermatogenesis that will ultimately become sperm.

A

Spermatogenic cells

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10
Q

Large cells that support and nurture the sperm-forming cells; also called Sertoli cells.

A

Sustentacular cells

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11
Q

Cells located in the spaces between the seminiferous tubules which secrete male sex hormones.

A

Interstitial cells

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12
Q

Why must the temperature in the testes be kept around 95°F (34°C)?

A

This is needed for viable sperm production.

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13
Q

Which term refers to failure of one or both testes to descend?

A

cryptorchidism

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14
Q

A haploid cell (n) formed at the end of the first meiotic division.

A

Secondary spermatocyte

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15
Q

When this cell divides it replaces itself and makes a cell that enters meiosis I.

A

Spermatogonium

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16
Q

These are the immature cells formed at the end of meiosis II.

A

Spermatid

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17
Q

Diploid cells (2n) that enter meiosis I.

A

Primary spermatocyte

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18
Q

Haploid cells are formed as the product of:

A

meiosis I and meiosis II

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19
Q

Type B daughter cells (which have 46 chromosomes) are formed from spermatogonia by what process?

A

mitosis

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20
Q

Where does the process of spermatogenesis take place?

A

seminiferous tubules

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21
Q

Which statement about spermiogenesis is FALSE?

A

causes spermatozoa to mature into spermatids

22
Q

The sex cells, i.e. the sperm in males and ovum in females, are referred to as:

A

gametes

23
Q

Tubes that carry sperm from the rete testis to the epididymis.

A

Efferent ductules

24
Q

Comma-shaped organ that arches over the posterior and lateral sides of each testis.

A

Epididymis

25
Q

The long tube that carries sperm from the tail of the epididymis to the area behind the bladder.

A

Ductus deferens

26
Q

Tube formed from the junction of the ductus deferens and the duct from the seminal vesicle that runs through the prostate gland.

A

Ejaculatory duct

27
Q

A column of fascia that extends from the scrotum through the inguinal canal and contains the ductus deferens, testicular vessels and nerves.

A

Spermatic cord

28
Q

Portion of the urethra that receives sperm and secretions from the ejaculatory duct.

A

Prostatic urethra

29
Q

Portion of the urethra located in the penis.

A

Spongy (penile) urethra

30
Q

Portion of the urethra located in the urogenital diaphragm.

A

Membranous urethra

31
Q

Travel of sperm

A

Seminiferous tubules–> Rete testis –> Efferent ductules –> Epididymis–> Ductus deferens –> Ejaculatory duct –> Prostatic urethra –> Membranous urethra –> Spongy (penile) urethra

32
Q

A pair of glands in the urogenital diaphragm.

A

bulbourethral glands

33
Q

A pair of glands located posterior to the base of the bladder.

A

seminal vesicles

34
Q

A single gland located inferior to the bladder.

A

prostate

35
Q

Its secretion makes up 60% of the volume of semen.

A

seminal vesicles

36
Q

Its secretion makes up about 33% of the volume of semen.

A

prostate

37
Q

Its secretion is released prior to ejaculation to neutralize traces of acid in the urethra and lubricate the tip of the penis.

A

bulbourethral glands

38
Q

Its secretion helps nourish sperm and may stimulate contractions in the uterus and uterine tubes.

A

seminal vesicles

39
Q

Their secretions assist sperm motility and have enzymes that clot and liquefy ejaculated semen.

A

prostate and seminal vesicles

40
Q

Which statement is correct concerning the penis?

A

Blood accumulates in the erectile tissue during sexual stimulation.

41
Q

What is the expanded distal end of the penis called?

A

glans penis

42
Q

The cuff of skin around the glans penis in an uncircumcised male is the:

A

prepuce

43
Q

Exists as a single column

A

corpus spongiosum

44
Q

One of the pair of columns.

A

corpus cavernosum

45
Q

A dorsal column.

A

corpus cavernosum

46
Q

A ventral column.

A

corpus spongiosum

47
Q

Forms the crura.

A

corpus cavernosum

48
Q

Forms the bulb.

A

corpus spongiosum

49
Q

Forms the glans penis.

A

corpus spongiosum

50
Q

Encircles the urethra.

A

corpus spongiosum

51
Q

Which stage of sperm ejection is controlled by the parasympathetic system?

A

erection

52
Q

Which stage of sperm ejection is controlled by the sympathetic system?

A

ejaculation

Human Anatomy (18 decks)

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