Muscles and Bones Worksheet
Grade 9 Science worksheet covering the structure and function of the human skeletal and muscular systems.
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Muscles and Bones Worksheet
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following is NOT a primary function of the skeletal system?
Support and protection
Movement
Production of hormones
Storage of minerals
2. Which type of muscle tissue is responsible for involuntary movements like digestion?
Skeletal muscle
Cardiac muscle
Smooth muscle
Voluntary muscle
1. The human skeleton is composed of bones in an adult.
2. Joints are places where two or more meet.
3. Tendons connect to bone, while ligaments connect to bone.
1. Differentiate between the axial and appendicular skeleton, providing examples of bones found in each.
Observe the diagram of the human skeleton below and answer the questions.
1. Identify two bones from the axial skeleton shown in the diagram.
2. Identify two bones from the appendicular skeleton shown in the diagram.
1. All muscles in the human body are voluntary.
True
False
2. Cartilage provides a smooth surface for bones to articulate at joints.
True
False
Match each term on the left with its correct description on the right.
1. Osteoporosis
a. Muscle contraction
2. Myosin
b. Bone-wasting disease
3. Ball-and-socket joint
c. Found in shoulder and hip
1. Describe the sliding filament theory of muscle contraction. Include the roles of actin, myosin, ATP, and calcium ions.