AFC Anatomy & Physiology for Aerial Fitness 3

Question 1

Which nerve is most at risk of compression injury when an aerial student wraps the hoop behind the knee repeatedly?

Accepted Answer

Common peroneal (fibular) nerve

Answer

The common peroneal nerve wraps around the fibular head and is superficial, making it highly vulnerable to compression at the back of the knee.

Question 2

During a back bend in aerial silks, which spinal ligament is placed under maximum stretch?

Accepted Answer

Anterior longitudinal ligament

Answer

The anterior longitudinal ligament runs along the front of the vertebral bodies and is maximally stretched during spinal extension (back bending).

Question 3

Type I muscle fibers are preferred by aerial artists during long conditioning sessions because they:

Accepted Answer

Are fatigue-resistant and rely on oxidative metabolism

Answer

Type I (slow-twitch) fibers are highly oxidative, rich in mitochondria, and resist fatigue, making them ideal for sustained aerial conditioning work.

Question 4

An aerial student complains of pain and numbness down the medial forearm and into the ring and little fingers. Which nerve is most likely involved?

Accepted Answer

Ulnar nerve

Answer

The ulnar nerve supplies the medial forearm and the 4th and 5th digits; compression at the elbow or wrist produces this pattern.

Question 5

Proprioceptors located within muscles that detect changes in muscle length and velocity are called:

Accepted Answer

Muscle spindles

Answer

Muscle spindles (intrafusal fibers) sense changes in muscle length and rate of stretch, triggering reflexive contractions to protect the muscle.

(AFC) Aerial Fitness Certification Practice Test