The Extracellular Matrix Performs a Variety of Functions,including Mediation of Interactions

question 61

Multiple Choice

The extracellular matrix performs a variety of functions,including mediation of interactions between cells.__________ is a glycosaminoglycan (GAG) ,which provides protection and acts as a shock absorber.

• A)Collagen
• B)Chondroitin sulfate
• C)Hyaluronan
• D)Fibronectin

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Definitions:

Deltoid

A large triangular muscle covering the shoulder joint and responsible for lifting the arm and giving the shoulder its range of motion.

Teres Minor

A small muscle of the rotator cuff that assists in rotating the arm laterally and stabilizes the shoulder joint.

Biceps Brachii

A muscle of the upper arm that flexes the forearm and is involved in moving the shoulder and elbow.

Ventral Root

The part of a spinal nerve that emerges from the anterior portion of the spinal cord, containing motor fibers that transmit neural signals from the spinal cord to the body muscles.