Changes During Puberty

How much does the diameter of the heart increase during puberty?

What changes occur to the larynx and vocal cords during puberty?

What is the result of increased activity in sweat and sebaceous glands during adolescence?

Describe how body shape changes during puberty and how these changes differ by gender.

What happens to the sex organs of boys and girls during puberty?

Changes in Body Size

Heart and lung size increase, although less noticeable.
Heart diameter increases by about 50%.
Lung size and capacity increase.

Changes in Body Shape

Body shape changes, different for boys and girls.

Changes in Voice

Larynx (voice box) is a tube-shaped piece of cartilage.
Before puberty, the larynx is small, vocal cords are short and thin, resulting in a high-pitched voice.
During puberty, the larynx grows bigger, vocal cords lengthen and thicken, resulting in a deeper voice.
The larynx grows larger during puberty and protrudes outwards, called the Adam's apple.
The process takes a few months, and once the larynx grows fully, vocal changes stabilize
Males have longer vocal cords than females, which results in differences in pitch.

Increased Activity of Sweat and Sebaceous Glands

Sweat glands develop fully during puberty.
Sweat secretion increases in adolescents.
Acne and pimples are common due to increased sebum production from sebaceous glands.

Sexual Development

Physical and sexual development occurs during puberty.
Development of sex organs (testes in boys, other organs in girls) happen simultaneously.

Explore the significant physiological changes that occur during puberty, including alterations in body size, shape, and voice. This quiz covers the growth of internal organs, the development of secondary sexual characteristics, and the increased activity of glands. Test your knowledge on these critical aspects of adolescent development.