Question 1

Which of the following best describes a gomphosis joint?

Accepted Answer

A peg-in-socket fibrous joint, such as a tooth held in its socket by the periodontal ligament.

Question 2

Which structural feature is unique to synovial joints and not found in fibrous or cartilaginous joints?

Accepted Answer

Presence of a joint cavity filled with synovial fluid.

Question 3

A patient presents with a lateral blow to the knee during a football game. Which structures are most likely to be injured, based on the '3 C's' of common knee injuries?

Accepted Answer

Collateral ligaments, cruciate ligaments, and cartilages (menisci).

Question 4

Which of the following joints is classified as a synchondrosis?

Accepted Answer

The joint between the first rib and the sternum, united by hyaline cartilage.

Question 5

Which type of synovial joint allows movement in or around all three planes (multiaxial movement)?

Accepted Answer

Ball-and-socket joint

Question 6

What is the primary function of synovial fluid in synovial joints?

Accepted Answer

To reduce friction, lubricate, and nourish the articular cartilage.

Question 7

Which of the following best describes the movement of abduction?

Accepted Answer

Moving a limb away from the midline of the body in the frontal plane.

Question 8

A patient is unable to perform flexion at the elbow. Which movement is impaired?

Accepted Answer

Decreasing the angle between the humerus and the forearm.

Question 9

Which of the following is a biaxial synovial joint?

Accepted Answer

Metacarpophalangeal (knuckle) joint

Question 10

Which ligament prevents anterior displacement of the tibia relative to the femur in the knee joint?

Accepted Answer

Anterior cruciate ligament (ACL)

Question 11

Which of the following statements about the articular capsule of a synovial joint is correct?

Accepted Answer

It consists of an outer fibrous layer and an inner synovial membrane.

Question 12

Which of the following best explains why the shoulder joint is more prone to dislocation than the hip joint?

Accepted Answer

The shoulder joint has a shallow articular surface and less bony stability compared to the hip.

Question 13

Which of the following is NOT a function of bursae in synovial joints?

Accepted Answer

To connect bones together with collagen fibers.

Question 14

A patient has a fused suture in the skull. What is the correct term for this condition?

Accepted Answer

Synostosis

Question 15

Which of the following best describes the movement of circumduction?

Accepted Answer

Moving a limb or finger so that it describes a cone in space.

Question 16

Which of the following is the most important factor in stabilizing synovial joints?

Accepted Answer

Muscle tone of tendons crossing the joint.

Question 17

Which of the following joints is classified as a syndesmosis?

Accepted Answer

Distal tibiofibular joint

Question 18

Which of the following movements occurs at the atlantoaxial joint?

Accepted Answer

Rotation

Question 19

Which of the following is a real-life example of a plane joint?

Accepted Answer

Intercarpal joints of the wrist

Question 20

A patient has difficulty moving their thumb to touch the tips of their other fingers. Which special movement is impaired?

Accepted Answer

Opposition

Chapter 8: Joints (Articulations) – Structure, Function, and Movements

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