Massage and Bodywork Licensing Examination Kinesiology 3

Question 1

Which muscle group is primarily responsible for lumbar spine extension?

Accepted Answer

Erector spinae

Answer

The erector spinae group (iliocostalis, longissimus, and spinalis) are the primary extensors of the lumbar spine.

Question 2

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

Accepted Answer

Flexion

Answer

Flexion is defined as a movement that decreases the angle between two body segments at a joint.

Question 3

Which ligament prevents anterior displacement of the femur on the tibia?

Accepted Answer

Anterior cruciate ligament

Answer

The anterior cruciate ligament (ACL) prevents the femur from sliding anteriorly and limits excessive knee extension.

Question 4

Which rotator cuff muscle internally rotates the shoulder?

Accepted Answer

Subscapularis

Answer

The subscapularis is the only rotator cuff muscle that performs internal (medial) rotation of the shoulder.

Question 5

A client cannot raise onto their toes on one foot. Which nerve is most likely involved?

Accepted Answer

Tibial nerve

Answer

The tibial nerve innervates the gastrocnemius and soleus, which are responsible for plantarflexion needed to rise on toes.

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