Flashcards in Chapter 4 - Male Sexual Anatomy and Physiology Deck (63):
Cylinders of spongy issue in the penis that become congested with blood and stiffen during arousal.
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.
The ridge that separates the glans from the body of the penis.
The sensitive strop of tissue that connects the underside of the penile glans to the shaft.
The base of the penis, which extends into the pelvis.
The body of the penis, which expands as a result of vasoconstriction.
The look skin that covers the penile glans. Also referred to as the prepuce.
Surgical removal of the foreskin of the penis.
An abnormal condition in which the foreskin is so tight that it cannot be withdrawn from the glans.
The pouch of loose skin that contains the testes.
The cord that suspends a testicle within the scrotum and contains a vas deferens, blood vessels, nerves, and the cremaster muscle.
A tube that conducts sperm from the testicle to the ejaculatory duct of the penis.
The muscle that raises and lowers the testicle in response to temperature changes and sexual stimulation.
The muscle in the middle later of the scrotum that contracts and relaxes in response to temperature changes.
A cell from which a new organism develops.
The male germ cell.
Male sex hormones.
A male steroid sex hormone.
Cells that lie between the seminiferous tubules and secrete testosterone.
Another term for interstitial cells.
Secondary Sex Characteristics
Traits that distinguish the genders but are not directly involved in reproduction.
Tiny, winding, sperm-producing tubes within the lobes of the testes.
The process by which sperm cells are produced and developed.
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.
Cells formed by the division of spermatocytes. Each spermatid has 23 chromosomes.
Mature sperm cells.
A tube that lies agains the back wall of each testicle and stores sperm.
Severing of the vas deferens, preventing sperm, from reaching the ejaculatory duct.
Small glands that lie behind the bladder and secrete fluids that combine with sperm in the ejaculatory duct.
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.
Hairlike projections from cells that beat rhythmically to produce locomotion or currents.
Structures that lie below the prostate and empty their secretions into the urethra during sexual arousal.
Another term for Cowper's Glands.
The gland that lies beneath the bladder and secretes prostatic fluid, which gives semen its characteristic odor and texture.
The whitish fluid that constitutes the ejaculate, consisting of sperm and secretions from the seminal vesicles, prostate, and Cowper's glands.
An inflammation of the bladder or urethra.
A condition in which one or two testicles fails to descend from the abdomen into the scrotum.
Benign Prostatic Hyperplasia
Enlargement of the prostate due to hormonal changes of aging and symptomizes by urinary frequency, urinary urgency, and difficulty starting the flow of urine.
Inflammation of the prostate gland.
Enlargement and stiffening of the penis caused by engorgement with blood.
Feelings of dread and foreboding experienced in connection with sexual activity (or any other activity that might be judged by another person).
The thick, triangular bone located near the bottom of the spinal column.
Autonomic Nervous System (ANS)
The division of the nervous system that regulates automatic bodily processes, such as heartbeat, pupal dilation, respiration, and digestion.
The branch of the ANS most active during emotional responses that spend energy, such as fear and anxiety. The sympathetic ANS largely controls ejaculation.
The branch of the ANS most active during processes that restore energy, like digestion. The parasympathetic ANS largely controls erection.
Excessive curvature of the penis that can make erections painful.
The climax of sexual excitement.
A person with sensory and motor paralysis of the lower half of the body.
The first phase of ejaculation, which involves contractions of the prostate gland, seminal vesicles, and the upper part of the vas deferens.
A sac of dilated part of a tube or canal.
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.
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.
Ejaculation in which the ejaculate empties into the bladder.
_____ is characterized by prolonged erection.
During the emission stage of ejaculation, semen is propelled into the ______.
Both male and females have ______.
Male circumcision removes the _____.
Scrotal temperature tends to be ______ body temperature.
5 to 6 degrees Fahrenheit lower than
_______ stimulates secretion of testosterone by interstitial cells.
________ nano grams of prostate specific antigen per milliliter of blood are considered normal.
Both semen and urine pass through the ______.
Men have erections every ________ minutes of so while they sleep.