Puberty & the Reproductive System

These chemicals tell the body to change and grow during puberty.

• red blood cells

• nerve signals

• digestive enzymes

• sex hormones

What are the changes that happen during puberty in both boys and girls? Check all that apply.

• Growth spurt

• Breasts grow larger

• Deeper voice

• Increase in sweat and oil gland activity

• Increased body hair

What are hormones?

• Chemical messengers that are manufactured by glands, travel through the blood, and affect other tissues.

• The period of sexual maturation, during which a person becomes capable of reproducing.

• Primary sex characteristics, secondary sex characteristics, and height.

• Events that need to happen in order for a person to continue growing toward becoming a healthy, mature adult.

Hormones are only produced by your sex organs.

• True

• False

An organ that produces secretions called hormones is known as a :

• chemical
• gland
• hormone
• duct

_______ is a sex hormone that plays important roles in the body. In men, it's thought to regulate sex drive, bone mass, fat distribution, muscle mass and strength, and the production sperm

• Estrogen

• Testosterone

• Progesterone

• Insulin

________ hormone plays an essential role in the growth and development of female secondary sexual characteristics such as breasts, pubic and armpit hair, and the regulation of the menstrual cycle.

• Gonadotropin

• Testosterone

• Estrogen

• Uterus

Release of hormones provides immediate body responses because the hormones are directed towards:

• Target cells

• Cardiac cells

• Nerve cells

• Reproductive system

What hormone is released if glucose levels are too high?

• Insulin

• Glucagon

• Pancreas

• Glycogen

Which of the following is not a secondary sex characteristic of males?

• Widening of the pelvis

• Increased facial and pubic hair

• Deepening of the voice

• Increased skeletal muscle development