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Human Sexuality > Chapter 4 - Male Sexual Anatomy and Physiology > Flashcards

Chapter 4 - Male Sexual Anatomy and Physiology Flashcards

1
Q

Corpora Cavernosa

A

Cylinders of spongy issue in the penis that become congested with blood and stiffen during arousal.

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2
Q

Corpus Spongiosum

A

The spongy body that runs along the bottom of the penis, contains the penile urethra, and enlarges at the tip of the penis to form the glans.

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3
Q

Corona

A

The ridge that separates the glans from the body of the penis.

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4
Q

Frenulum

A

The sensitive strop of tissue that connects the underside of the penile glans to the shaft.

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5
Q

Root

A

The base of the penis, which extends into the pelvis.

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6
Q

Shaft

A

The body of the penis, which expands as a result of vasoconstriction.

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7
Q

Foreskin

A

The look skin that covers the penile glans. Also referred to as the prepuce.

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8
Q

Circumcision

A

Surgical removal of the foreskin of the penis.

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9
Q

Phimosis

A

An abnormal condition in which the foreskin is so tight that it cannot be withdrawn from the glans.

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10
Q

Scrotum

A

The pouch of loose skin that contains the testes.

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11
Q

Spermatic Cord

A

The cord that suspends a testicle within the scrotum and contains a vas deferens, blood vessels, nerves, and the cremaster muscle.

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12
Q

Vas Deferens

A

A tube that conducts sperm from the testicle to the ejaculatory duct of the penis.

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13
Q

Cremaster Muscle

A

The muscle that raises and lowers the testicle in response to temperature changes and sexual stimulation.

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14
Q

Dartos Muscle

A

The muscle in the middle later of the scrotum that contracts and relaxes in response to temperature changes.

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15
Q

Germ Vell

A

A cell from which a new organism develops.

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16
Q

Sperm

A

The male germ cell.

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17
Q

Androgens

A

Male sex hormones.

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18
Q

Testosterone

A

A male steroid sex hormone.

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19
Q

Interstitial Cells

A

Cells that lie between the seminiferous tubules and secrete testosterone.

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20
Q

Leydig’s Cells

A

Another term for interstitial cells.

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21
Q

Secondary Sex Characteristics

A

Traits that distinguish the genders but are not directly involved in reproduction.

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22
Q

Seminiferous Tubules

A

Tiny, winding, sperm-producing tubes within the lobes of the testes.

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23
Q

Spermatogenesis

A

The process by which sperm cells are produced and developed.

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24
Q

Spermatocyte

A

An early stage in the development of sperm cells, in which each parent cell has 46 chromosomes, including one X and one Y sex chromosome.

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25
Q

Spermatids

A

Cells formed by the division of spermatocytes. Each spermatid has 23 chromosomes.

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26
Q

Spermatozoa

A

Mature sperm cells.

27
Q

Epididymis

A

A tube that lies agains the back wall of each testicle and stores sperm.

28
Q

Vasectomy

A

Severing of the vas deferens, preventing sperm, from reaching the ejaculatory duct.

29
Q

Seminal Vesicles

A

Small glands that lie behind the bladder and secrete fluids that combine with sperm in the ejaculatory duct.

30
Q

Ejaculatory Duct

A

A Duct formed by the convergence of a vas deferens with a seminal vesicle through which sperm pass through the prostate gland and into the urethra.

31
Q

Cilia

A

Hairlike projections from cells that beat rhythmically to produce locomotion or currents.

32
Q

Cowper’s Glands

A

Structures that lie below the prostate and empty their secretions into the urethra during sexual arousal.

33
Q

Bulbourethral Glands

A

Another term for Cowper’s Glands.

34
Q

Prostate Glands

A

The gland that lies beneath the bladder and secretes prostatic fluid, which gives semen its characteristic odor and texture.

35
Q

Semen

A

The whitish fluid that constitutes the ejaculate, consisting of sperm and secretions from the seminal vesicles, prostate, and Cowper’s glands.

36
Q

Urethritis

A

An inflammation of the bladder or urethra.

37
Q

Cryptorchidism

A

A condition in which one or two testicles fails to descend from the abdomen into the scrotum.

38
Q

Benign Prostatic Hyperplasia

A

Enlargement of the prostate due to hormonal changes of aging and symptomizes by urinary frequency, urinary urgency, and difficulty starting the flow of urine.

39
Q

Prostatitis

A

Inflammation of the prostate gland.

40
Q

Erection

A

Enlargement and stiffening of the penis caused by engorgement with blood.

41
Q

Performance Anxiety

A

Feelings of dread and foreboding experienced in connection with sexual activity (or any other activity that might be judged by another person).

42
Q

Sacrum

A

The thick, triangular bone located near the bottom of the spinal column.

43
Q

Autonomic Nervous System (ANS)

A

The division of the nervous system that regulates automatic bodily processes, such as heartbeat, pupal dilation, respiration, and digestion.

44
Q

Sympathetic

A

The branch of the ANS most active during emotional responses that spend energy, such as fear and anxiety. The sympathetic ANS largely controls ejaculation.

45
Q

Parasympathetic

A

The branch of the ANS most active during processes that restore energy, like digestion. The parasympathetic ANS largely controls erection.

46
Q

Peyronie’s Disease

A

Excessive curvature of the penis that can make erections painful.

47
Q

Orgasm

A

The climax of sexual excitement.

48
Q

Paraplegic

A

A person with sensory and motor paralysis of the lower half of the body.

49
Q

Emission Stage

A

The first phase of ejaculation, which involves contractions of the prostate gland, seminal vesicles, and the upper part of the vas deferens.

50
Q

Ampulla

A

A sac of dilated part of a tube or canal.

51
Q

Urethral Bulb

A

The small tube that makes up the pros static part of the urethral tract and balloons out as muscles close at either end, trapping semen prior to ejaculation.

52
Q

Expulsion Stage

A

The second stage of ejaculation, during which muscles at the base of the penis and elsewhere contract rhythmically, forcefully expelling semen and providing pleasurable sensations.

53
Q

Retrograde Ejaculation

A

Ejaculation in which the ejaculate empties into the bladder.

54
Q

_____ is characterized by prolonged erection.

A

Priapism

55
Q

During the emission stage of ejaculation, semen is propelled into the ______.

A

urethral bulb

56
Q

Both male and females have ______.

A

corpora cavernosum

57
Q

Male circumcision removes the _____.

A

prepuce

58
Q

Scrotal temperature tends to be ______ body temperature.

A

5 to 6 degrees Fahrenheit lower than

59
Q

_______ stimulates secretion of testosterone by interstitial cells.

A

Luteinizing hormone

60
Q

________ nano grams of prostate specific antigen per milliliter of blood are considered normal.

A

Under 4

61
Q

Both semen and urine pass through the ______.

A

urethral meatus

62
Q

Men have erections every ________ minutes of so while they sleep.

A

90

63
Q

The human penis contains ________.

A

corpora cavernosa

Human Sexuality (20 decks)

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