Massage and Bodywork Licensing Examination Kinesiology and Biomechanics 2

Question 1

Which class of lever has the fulcrum located between the effort and the load?

Accepted Answer

First-class lever

Answer

A first-class lever has the fulcrum (joint) between the effort (muscle) and the load, as seen in head nodding on the atlanto-occipital joint.

Question 2

The gastrocnemius muscle performs which combination of actions?

Accepted Answer

Knee flexion and plantar flexion

Answer

The gastrocnemius crosses both the knee and ankle, producing knee flexion and plantar flexion.

Question 3

Which term describes a muscle that assists the prime mover by performing the same action?

Accepted Answer

Synergist

Answer

A synergist assists the agonist (prime mover) in producing the same joint movement.

Question 4

The rotator cuff muscle that performs internal rotation of the glenohumeral joint is the:

Accepted Answer

Subscapularis

Answer

The subscapularis is the only rotator cuff muscle that internally rotates the shoulder; the others externally rotate.

Question 5

Lateral deviation of the spine is called:

Accepted Answer

Scoliosis

Answer

Scoliosis is an abnormal lateral curvature of the spine, often with a rotational component.

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