Human Sexuality Terms From Chapter 4 Of Human Sexuality In A World Of Diversity

Front 1

Phallic symbols

Back 1

Images of the penis that are usually suggestive of generative power

Front 2

Semen

Back 2

The whitish fluid that constitutes the ejeculate, consisting of sperm and secretions from the seminal vesicles, prostate, and Cowper's glands

Front 3

Corpora cavernosa

Back 3

Cylinders of spongy tissue in the penis that become congested with blood and stiffen during sexual arousal

Front 4

Corpus spongiosum

Back 4

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

Front 5

Shaft

Back 5

The body of the penis, which expands as a result of vasocongestion

Front 6

Corona

Back 6

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

Front 7

Frenulum

Back 7

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

Front 8

Root

Back 8

The base of the penis, which extends into the pelvis

Front 9

Foreskin

Back 9

The loose skin that covers the penile glans; also referred to as the prepuuce

Front 10

Circumcision

Back 10

Surgical removal of the foreskin of the penis

Front 11

Phimosis

Back 11

An abnormal condition in which the foreskin is so tight that it cannot be withdrawn from the glans

Front 12

Scrotum

Back 12

The pouch of loose skin that contains the testes

Front 13

Spermatic cord

Back 13

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

Front 14

Vas deferens

Back 14

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

Front 15

Cremaster muscle

Back 15

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

Front 16

Dartos muscle

Back 16

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

Front 17

Germ cell

Back 17

A cell from which a new organism develops

Front 18

Sperm

Back 18

The male germ cell

Front 19

Androgens

Back 19

Male sex hormones

Front 20

Testosterone

Back 20

A male steroid sex hormone

Front 21

Interstitial cells

Back 21

Cells that lay between the sminiferous tubules and secret testosterone

Front 22

Leydig's cells

Back 22

Another term for interstitial cells

Front 23

Secondary sex characteristics

Back 23

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

Front 24

Seminiferous tubules

Back 24

Tiny, winding, sperm-producing tubules within the lobes of the testes

Front 25

Spermatocyte

Back 25

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

Front 26

Spermatids

Back 26

Cells formed by the division of spermatocytes; each spermatid has 23 chromosomes

Front 27

Spermatozoa

Back 27

Mature sperm cells

Front 28

Epididymis

Back 28

A tube that lies against the back wall of each testicle that stores sperm

Front 29

Vasectomy

Back 29

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

Front 30

Seminal vesicles

Back 30

Small glands that lay behind the bladder and secrete fluids that combine with sperm in the ejaculatory ducts

Front 31

Ejaculatory duct

Back 31

A duct formed by the convergence of a vas deferns with a seminal vesicle through whcih sperm pass through the prostate gland and into the urethra

Front 32

Cilia

Back 32

Hairlike projections form cells that beat rhythmically to produce locomotion or currents

Front 33

Prostate gland

Back 33

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

Front 34

Cowper's glands

Back 34

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

Front 35

Bulbourethral glands

Back 35

Another term for Cowper's glands

Front 36

Urethritis

Back 36

An inflammation of the bladder or urethra

Front 37

Cryptorchidism

Back 37

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

Front 38

Benign prostatic hyperplasia

Back 38

Enlargement of the prostate resulting from hormonal changes of aging and symptomized by urinary frequency, urinary urgency, and difficulty starting the flow of urine.

Front 39

Prostatitis

Back 39

Inflammation of the prostate gland

Front 40

Erection

Back 40

Enlargement and stiffening of the penis caused by engorgement with blood

Front 41

Performance anxiety

Back 41

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

Front 42

Sacrum

Back 42

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

Front 43

Autonomic nervous system (ANS)

Back 43

The division of the nervous system that regulates automatic bodily processes, such as heartbeat

Front 44

Sympathetic

Back 44

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

Front 45

Parasympathetic

Back 45

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

Front 46

Peyronie's disease

Back 46

Excessive curvature of the penis that can make erections painful

Front 47

Orgasm

Back 47

The climax of sexual excitement

Front 48

Paraplegic

Back 48

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

Front 49

Emission phase

Back 49

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

Front 50

Ampulla

Back 50

A sac or dilated part of a tube or canal

Front 51

Urethral bulb

Back 51

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

Front 52

Expulsion stage

Back 52

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

Front 53

Retrograde ejaculation

Back 53

Ejaculation during which the ejaculate empties into the bladder