Question 1

Which plane of motion divides the body into front and back halves, and what movement occurs within it?

Accepted Answer

The frontal (coronal) plane divides the body into anterior and posterior halves; movements such as abduction, adduction, and lateral flexion occur in this plane.

Question 2

A bicep curl occurs primarily in which plane of motion?

Accepted Answer

A bicep curl occurs primarily in the sagittal plane, which divides the body into left and right halves and involves flexion and extension movements.

Question 3

Which axis of rotation is associated with movements occurring in the transverse plane?

Accepted Answer

The longitudinal (vertical) axis runs head to foot and is associated with transverse plane movements such as rotation.

Question 4

What is the term for the imaginary point around which a body segment rotates during movement?

Accepted Answer

The axis of rotation (also called the fulcrum in lever mechanics) is the imaginary point or line around which a body segment rotates.

Question 5

What type of joint is the glenohumeral (shoulder) joint, and what makes it highly mobile but unstable?

Accepted Answer

The glenohumeral joint is a ball-and-socket synovial joint. Its mobility comes from a shallow glenoid fossa relative to the large humeral head, which sacrifices bony stability and relies on soft tissue (rotator cuff, labrum, ligaments) for support.

Anatomy & Biomechanics – ACE CPT Exam Prep

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