When your body reaches a certain age, your brain releases a special hormone that starts the changes of puberty, called

• gonadotropin-releasing hormone

• luteinizing hormone

• follicle-stimulating hormone

The pituitary gland is a pea-shaped gland that sits just under the brain and releases puberty hormones.

• True

• False

Estrogen is the hormone that causes most of the changes in a guy's body during puberty.

• True

• False

What is the condition of the skin that shows up as different types of bumps?

• Facial hair

• Sweat

• Acne

Why do teens develop body odor when they enter puberty?

• They don't wash

• An increase in classroom stress causes teens to smell.

• Puberty hormones affect glands in your skin, and the glands make chemicals that smell bad.

List four changes that occur during puberty.

• production of testosterone; shrinking spurt; hair loss; body odor

• production of testosterone; weight loss; hair loss; muscle strength

• production of testosterone; growth spurt; hair loss;

• production of testosterone; growth spurt; hair growth; body odor

During the menstrual cycle, an egg comes out of an _________ and begins a trip through the fallopian tube to the uterus.

• ovary

• uterus

• stomach

• liver

Growth during puberty is the last time your body grows taller.

• True

• False

Estrogen is the hormone that causes most of the changes in a girl's body during puberty.

• True

• False

Which part of a guy's body produces sperm?

• penis

• testes

• epididymis

• vas deferens