Question

Hinge joints:

• A. Are synovial joints
• B. Permit movements in one direction
• C. Are found in knee
• D. All of these

Hint:

Examples of hinge joints:
Knee joint
Elbow joint
Interphalangeal joints They allow movement in only one plane.

Answer 1

The Correct Option is D

Step 1: Understand what hinge joints are. Hinge joints are a type of joint that allow movement in a single plane, similar to the opening and closing of a door.
Step 2: Verify each statement.
(A) Are synovial joints — True. Hinge joints belong to the synovial joint category, which have a synovial cavity.
(B) Permit movements in one direction — True. They allow flexion and extension only.
(C) Are found in knee — True. The knee joint is a classic example of a hinge joint.
Step 3: Draw the conclusion. Since all the given statements are correct,
Hence, the correct answer is \[ \boxed{\text{All of these}} \]