West Coast EMT Block One Exam

What physical change is typical in the adolescent age group?

1. Secondary sexual development begins

2. Muscle and bone growth both decrease

3. Systolic blood pressure decreases

4. Normal pulse rate steadily increases

The correct answer is: Secondary sexual development begins

The typical physical change in the adolescent age group is the onset of secondary sexual development. This process involves a range of physiological changes that occur during puberty, which is a critical time for adolescents as their bodies transition to physical maturity. Secondary sexual characteristics include the development of breasts in girls, the broadening of shoulders and an increase in muscle mass in boys, along with pubic and armpit hair growth for both sexes. This period is marked by significant hormonal changes that play a pivotal role in sexual maturation and overall growth. In contrast, muscle and bone growth primarily increase during adolescence due to growth spurts linked to hormonal changes. Systolic blood pressure tends to increase during this period as the cardiovascular system adjusts to the increased demands of a growing body. Normal pulse rates generally decrease or stabilize as children transition into adolescence, reflecting changes in body composition and cardiovascular efficiency.