Question

figure 8.3

using figure 8.3, identify each type of synovial joint by name.

prompts

1. joint 1.
2. joint 2.
3. joint 3.

Explanation:

Identify Joint 1

Using the Ball and Socket Joint knowledge point

• Joint 1 points to the glenohumeral (shoulder) joint.
• This joint is formed by the head of the humerus and the glenoid cavity of the scapula.
• It is classified functionally and structurally as a ball-and-socket joint.

Identify Joint 2

• Joint 2 points to the humeroulnar joint of the elbow.
• This joint allows uniaxial movement (flexion and extension) similar to a door hinge.
• It is classified as a hinge joint.

Identify Joint 3

• Joint 3 points to the proximal radioulnar joint.
• This joint allows rotational movement of the radius around the ulna (pronation and supination).
• It is classified as a pivot joint.

Answer:

No.	Problem	Answer
2	Joint 2	Hinge joint
3	Joint 3	Pivot joint