A Physical Variable That Possesses Both Magnitude and Direction Is

question 10

Multiple Choice

A physical variable that possesses both magnitude and direction is known as a

• A) number.
• B) matrix.
• C) scalar.
• D) vector.

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Definitions:

Rectus Abdominis

A long muscle of the anterior abdominal wall that helps flex the spine and maintain posture.

Transverses Abdominis

A muscle layer of the anterior and lateral abdominal walls which is deep to (beneath) the internal oblique muscle.

Internal Oblique

A muscle within the abdominal wall that acts in trunk rotation and lateral flexion, also aiding in respiration.

Transversus Thoracis

A muscle within the chest that plays a role in the movement of the thoracic cage.