Massage and Bodywork Licensing Examination MBLEx Kinesiology Questions and Answers 3

Question 1

During knee extension, which muscle does NOT contribute to the action?

Accepted Answer

Biceps femoris

Answer

The biceps femoris is a hamstring muscle responsible for knee flexion, not extension.

Question 2

What plane of motion divides the body into front and back halves?

Accepted Answer

Frontal

Answer

The frontal (coronal) plane divides the body into anterior and posterior portions.

Question 3

Which rotator cuff muscle is responsible for external rotation of the humerus?

Accepted Answer

Infraspinatus

Answer

The infraspinatus is the primary external rotator of the humerus among the rotator cuff muscles.

Question 4

What type of lever system is most common in the human body?

Accepted Answer

Third class

Answer

Third-class levers, where the effort is between the fulcrum and the load, are the most prevalent in the human body.

Question 5

Which muscle performs both plantarflexion of the ankle and flexion of the knee?

Accepted Answer

Gastrocnemius

Answer

The gastrocnemius crosses both the knee and ankle joints, allowing it to flex the knee and plantarflex the ankle.

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