Male Reproductive SystemVocabulary

PubertyPeriod of sexual development during which

males and females become sexually mature, and able to produce children.

Changes include:Voice changesBody shape Emotional changesBody hair

TestesThe two (2) male reproductive glands,

located in the scrotum.

Two main functions1. Produce Sperm2. Produce Testosterone

ScrotumThe external sac of skin in which the testes is

located. The scrotum is responsible for regulating the

temperature of the testes. The temperature within the testes must remain approximately 1°C cooler.

Raise Lower

Sperm needs a lower temperature to function properly.

EpididymisA “J” shaped tube located on the back of each

testis, in which sperm is stored for 2 to 4 days after they are formed.

Sperm also gains the ability to move there.

PenisThe male sex organ through which urine and

sperm leave the body

BladderThe Muscular sac that stores urine until it is

released from the body.

GlansTip of the penis

SemenThick, whitish fluid produced by the male sex

glands.1. Seminal Vesicle2. Prostate Gland3. Cowper's Gland

It transports the sperm

Also acts to decrease the acidity level in the urethra

Vas DeferensOne of the two tubes that carry sperm from

the Epididymis to the Urethra. Vasectomy: This tube is cut to perform a

permanent form of birth control

Seminal VesicleIn males, a pair of glands located near the

bladder that provides 60% of the fluid that makes up semen. Sugary substance that provides energy for the

sperm

Prostate GlandA gland located near the bladder that

provides 35% of the fluid to semen. Common site of cancer in men.

Cowper’s GlandA pair of glands located at the base of the

penis that provides 5% of the fluid to the semen.

A clear fluid that lubricates the urethra, and also reduces the acidity.

UrethraThe tube that passes from the bladder to the

outside of the body. Through which urine, and sperm travel.

RectumLast few inches of the large intestine, in

which feces are held until they are released from the body.

AnusThe opening of the rectum

ForeskinA fold of skin that covers the tip of the penis

CircumcisionSurgical procedure in which the foreskin is

removed from the penis

TestosteroneHormone produced by the testes that affects

the production of spermThe development of secondary male sex

characteristicsAnd the sex drive

EjaculationThe ejection of semen from the penisEjaculate is 90% water. Ejaculate consists

mainly of semen: 60% of the semen arises from the seminal vesicles

35% of the semen comes from the prostate. 5% is of other fluids (Ejacuation is preceded by an emission of 1-2 drops

of alkaline fluid from the Cowper's glands (two small glands beneath the prostate). Its alkalinity neutralizes the acidity that remains in the urethra from recent urination)