Upper Limb Anatomy - Short Answer Review Questions
W5 L2: Upper Limb 1 - Bones and Joints
Questions:
1. Name the bones that form the shoulder (pectoral) girdle.
2. What joint connects the upper limb to the axial skeleton?
3. What type of joint is the glenohumeral joint, and what movements does it allow?
4. Name the bone of the upper limb that articulates with both the radius and ulna.
5. What structure separates the two compartments of the forearm?
6. Which carpal bone is most commonly fractured?
7. What type of movement occurs at the radioulnar joints?
Answers:
1. Clavicle and scapula.
2. The sternoclavicular joint.
3. A ball-and-socket joint; allows flexion, extension, abduction, adduction, rotation, and
circumduction.
4. The humerus.
5. The interosseous membrane.
6. The scaphoid.
7. Pronation and supination.
W6 L1: Upper Limb 2 - Muscles, Nerves, and Vessels
Questions:
1. Which muscle initiates abduction of the shoulder?
2. What is the main function of the rotator cuff muscles?
3. Name the three muscles of the anterior arm compartment.
4. Which nerve supplies the posterior compartment of the arm and forearm?
5. What are the two terminal branches of the brachial artery?
6. Which artery is commonly used to measure blood pressure?
7. What is the carpal tunnel and which nerve passes through it?
Answers:
1. Supraspinatus.
2. To stabilize the glenohumeral joint.
3. Biceps brachii, brachialis, and coracobrachialis.
4. The radial nerve.
5. Radial artery and ulnar artery.
6. The brachial artery.
7. A passageway formed by the carpal bones and flexor retinaculum; the median nerve passes
through it.