Which Is an Action of the Abductor Pollicis Longus

question 13

Multiple Choice

Which is an action of the abductor pollicis longus?

• A)abduction of the thumb at the carpometacarpal joint
• B)adduction of the thumb at the carpometacarpal joint
• C)flexion of the thumb at the carpometacarpal joint
• D)flexion of the hand at the wrist joint

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Definitions:

Cell Wall

A rigid layer that lies outside the cell membrane in most bacteria, plants, algae, and fungi, providing support and protection.

Peptidoglycan

A complex polymer found in the cell walls of bacteria, providing structural strength and shape.

Crosslinked

A chemical bonding between different polymer chains, creating a more stable and complex molecular structure.

Polysaccharides

Complex carbohydrates formed by the polymerization of simplex sugar molecules, serving as energy storage or structural components in organisms.