AFAA Anatomy and Physiology

Question 1

Which muscle is the primary mover during a squat exercise?

Accepted Answer

Quadriceps

Answer

Hamstrings

Answer

Gastrocnemius

Answer

Tibialis anterior

Question 2

What is the term for the joint movement that decreases the angle between two body segments?

Accepted Answer

Flexion

Answer

Extension

Answer

Abduction

Answer

Adduction

Question 3

Which energy system provides ATP for high-intensity exercise lasting 10–30 seconds?

Accepted Answer

Glycolytic system

Answer

Oxidative system

Answer

ATP-PCr system

Answer

Beta-oxidation system

Question 4

The rotator cuff is a group of four muscles that stabilize which joint?

Accepted Answer

Shoulder

Answer

Hip

Answer

Knee

Answer

Elbow

Question 5

Which plane of motion divides the body into front (anterior) and back (posterior) halves?

Accepted Answer

Frontal plane

Answer

Sagittal plane

Answer

Transverse plane

Answer

Horizontal plane

Question 6

What is the primary function of the erector spinae muscles?

Accepted Answer

Spinal extension and postural support

Answer

Hip flexion

Answer

Shoulder abduction

Answer

Knee flexion