Major Muscles of the Human Body
A Grade 12 science worksheet covering the major muscles of the human body, their functions, and types of muscle tissue.
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Major Muscles of the Human Body
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Read each question carefully and provide your best answer. Refer to the diagram of the human muscular system as needed.
Human Muscular System Overview
1. Which type of muscle tissue is responsible for voluntary movements of the body?
Cardiac muscle
Smooth muscle
Skeletal muscle
Involuntary muscle
2. Which of the following muscles is primarily responsible for extending the forearm?
Biceps brachii
Deltoid
Triceps brachii
Pectoralis major
3. The is a large, fan-shaped muscle covering the upper part of the chest, responsible for adduction and medial rotation of the humerus.
4. The primary muscle involved in breathing, the , separates the thoracic and abdominal cavities.
5. The quadriceps femoris group consists of four muscles, including the rectus femoris and three muscles.
Match each muscle with its primary function.
6. Deltoid
a. Plantar flexion of the foot
7. Gluteus Maximus
b. Abduction of the arm
8. Gastrocnemius
c. Extension of the thigh
9. Differentiate between an antagonistic muscle pair, providing an example of such a pair and their actions.
10. Describe the main function of the hamstring group of muscles and name at least two muscles within this group.