AFAA Anatomy and Physiology 2

Question 1

During aerobic exercise, which organelle is primarily responsible for ATP production?

Accepted Answer

Mitochondria

Answer

Mitochondria are the site of oxidative phosphorylation, producing the majority of ATP aerobically.

Question 2

Which type of muscle fiber has the highest aerobic capacity and is most resistant to fatigue?

Accepted Answer

Type I

Answer

Type I (slow-twitch) fibers are highly oxidative, fatigue resistant, and ideal for endurance activities.

Question 3

What is the name of the connective tissue that attaches muscle to bone?

Accepted Answer

Tendon

Answer

Tendons are dense connective tissue structures that transmit muscular force to the skeleton.

Question 4

Which term describes movement of a limb away from the midline of the body?

Accepted Answer

Abduction

Answer

Abduction moves a limb away from the body's midline, such as raising the arm laterally.

Question 5

The gluteus maximus is the primary mover for which action?

Accepted Answer

Hip extension

Answer

The gluteus maximus is the largest hip extensor and is heavily recruited in activities like stair climbing and deadlifts.

AFAA - Aerobics and Fitness Association of America Practice Test