55 questions and answers about book Human Physiology by Dee

• / 2

55 questions and answers about book "Human Physiology" by Dee Silverthorn.

1. Q: What is homeostasis?

A: Homeostasis is the maintenance of a stable internal environment

despite external changes.

2. Q: What are the four primary types of tissue in the human body?

A: Epithelial, connective, muscle, and nervous tissue.

3. Q: What is the function of neurons?

A: Neurons transmit electrical signals throughout the body to

communicate information.

4. Q: Describe the role of the hypothalamus.

A: The hypothalamus regulates many physiological processes, including

temperature, thirst, and hormone release.

5. Q: What are action potentials?

A: Action potentials are rapid, temporary changes in membrane

potential that propagate along neurons.

6. Q: How do muscles contract?

A: Muscle contraction occurs through the sliding filament theory, where

actin and myosin filaments slide past each other.

7. Q: What is the function of red blood cells?

A: Red blood cells transport oxygen from the lungs to the tissues and

carbon dioxide from the tissues to the lungs.

• / 2