BIO 271 LECTURE EXAM 2 GLENOHUMERAL JOINT QUESTIONS WITH COMPLETE SOLUTIONS

BIO 271 LECTURE EXAM 2 GLENOHUMERAL JOINT
QUESTIONS WITH COMPLETE SOLUTIONS

List all of the Rotator Cuff Muscles: Correct Answers
Supraspinatus
Infraspinatus
Teres Minor
Subscaupularis

Muscles that move the humerus are generally categorized into
two groups which are: Correct Answers -Rotators & Retainers:
Rotator Cuff
-Free Movers

Short muscles that surround the GH joint. They are involved in
rotation and help retain the head of the humerus in the glenoid
fossa. Correct Answers Rotator Cuff Muscles

The glenohumeral joint involves: Correct Answers -flexion
-extension
-abduction
-adduction
-internal (Medial) Rotation
-external (Lateral) Rotation

What are free movers? Correct Answers Larger muscles that
are involved in all movements of the GH joint.

What are the Extensors of the GH joint? Correct Answers -
Teres Major
-Latissimus Dorsi

, -Long head of Triceps brachii
-Posterior Deltoid
-Lower Pectoralis major

What are the Flexors of GH joint? Correct Answers -
Coracobrachialis
-Short head of Biceps brachii
-Upper Pectoralis Major
-Anterior Deltoid

What is the innervation for Teres Minor? Correct Answers
Axillary N.

What is the innervation for the Anterior Deltoid? Correct
Answers Axillary N.

What is the innervation for the Coracobrachialis ? Correct
Answers Musculocutaneous N.

What is the innervation for the Infraspinatus? Correct Answers
Suprascapular N.

What is the innervation for the Latissimus Dorsi? Correct
Answers Thoracodorsal n.

What is the innervation for the Long head of Triceps brachii?
Correct Answers Radial n.

What is the innervation for the Lower Pectoralis major? Correct
Answers Medial Pectoral n.