Joints & Movement Worksheet with questions and diagrams for educational purposes.

Here is the completed Joints & Movement Worksheet with answers and explanations for each question:

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1. What are joints?

(2 marks)
Answer:
Joints are the points where two or more bones meet in the skeleton. They allow movement, support the body, and help protect internal organs.

Explanation:
Joints are essential for mobility and structural stability. They can be classified based on their structure and function.

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2. What are fixed joints? What is their other name?

(2 marks)
Answer:
Fixed joints are joints that do not allow any movement between the bones. Their other name is fibrous joints.

Explanation:
These joints are held together by dense connective tissue (like fibrous ligaments) and are found in areas like the skull (where skull bones are fused together). They provide strength and protection but no movement.

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3. What are slightly movable joints? What is their other name?

(2 marks)
Answer:
Slightly movable joints allow limited movement between bones. Their other name is cartilaginous joints.

Explanation:
These joints are connected by cartilage and permit small movements, such as bending or twisting. Examples include the joints between vertebrae in the spine.

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4. Name the type of joints shown below.

(a)
Image: Skull (with arrow pointing to joint between skull and jaw)
Answer:
a. Freely movable joint (synovial joint) – specifically a hinge joint at the temporomandibular joint (jaw).

Explanation:
The joint between the skull and mandible (jaw) allows opening and closing of the mouth. It’s a synovial hinge joint, which is freely movable.

(b)
Image: Vertebrae connected by cartilage
Answer:
b. Slightly movable joint (cartilaginous joint)

Explanation:
The intervertebral discs (made of cartilage) between the vertebrae allow slight movement, enabling flexibility in the spine. This is a classic example of a cartilaginous joint.

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5. What are freely movable joints? What is their other name?

(2 marks)
Answer:
Freely movable joints allow a wide range of motion between bones. Their other name is synovial joints.

Explanation:
These joints contain synovial fluid that lubricates the joint, reducing friction. They are the most common type of joint in the body and include ball-and-socket, hinge, pivot, and others. Examples: knee, shoulder, hip.

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6. What type of joint is shown in the following diagram?

(1 mark)
*(Note: The image was not provided in your message, so I cannot determine the exact joint. However, if you’re referring to a standard diagram often used in such worksheets—such as the elbow or knee—here's a likely answer.)*

Assuming the diagram shows a hinge-like joint (e.g., elbow):
Answer:
Hinge joint

Explanation:
A hinge joint allows movement in one plane, like bending and straightening (flexion and extension), similar to a door hinge. Common examples are the elbow and knee.

> ⚠️ *If you have a specific diagram, please describe it or upload it again so I can give a precise answer.*

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✔ Summary of Answers:

| Question | Answer |
|--------|--------|
| 1 | Joints are places where bones meet; allow movement and support. |
| 2 | Fixed joints = no movement; also called fibrous joints. |
| 3 | Slightly movable joints = limited movement; also called cartilaginous joints. |
| 4a | Freely movable (synovial) joint (temporomandibular joint) |
| 4b | Slightly movable (cartilaginous) joint (intervertebral disc) |
| 5 | Freely movable joints = wide range of motion; also called synovial joints. |
| 6 | Likely hinge joint (if elbow/knee) — depends on diagram. |

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