Upper Limb Muscles Anatomy Worksheet
Grade 12 Biology worksheet covering the anatomy, function, and identification of key muscles in the human upper limb.
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Upper Limb Muscles Anatomy Worksheet
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Read each question carefully and answer to the best of your knowledge. Refer to anatomical diagrams and your understanding of muscle function.
1. Which of the following muscles is primarily responsible for the flexion of the elbow joint?
Triceps Brachii
Deltoid
Biceps Brachii
Latissimus Dorsi
2. The supraspinatus muscle is part of which group of muscles?
Forearm flexors
Rotator cuff
Hand intrinsics
Posterior arm compartment
3. The primary extensor of the elbow is the .
4. The muscle originates from the coracoid process and inserts onto the medial surface of the humerus, assisting in shoulder flexion.
5. The pronator teres muscle is responsible for supination of the forearm.
True
False
6. The deltoid muscle is a major abductor of the shoulder.
True
False
7. Describe the primary function of the biceps brachii muscle and its antagonistic muscle.
8. Name two muscles that contribute to the movement of the wrist and state their general action (flexion or extension).
Match the muscle to its primary action.
9. Pectoralis Major
a. Forearm supination
10. Infraspinatus
b. Shoulder internal rotation
11. Supinator
c. Shoulder external rotation
12. Teres Major
d. Shoulder adduction and medial rotation
13. Identify the numbered muscles in the diagram below.
1.
2.
3.
4.