Question 1

Which of the following best describes a synarthrosis joint?

Accepted Answer

A joint that allows no movement and is extremely strong

Question 2

What is the primary structural difference between a synchondrosis and a symphysis?

Accepted Answer

A synchondrosis is held together by cartilage, while a symphysis is held together by fibrocartilage

Question 3

Which structural category of joint allows for the greatest range of motion?

Accepted Answer

Synovial joints

Question 4

A football player falls on his outstretched hand, forcefully pushing the humeral head upward. Which joint and ligament are most likely affected?

Accepted Answer

Shoulder joint; glenohumeral ligament

Question 5

Which of the following is a function of synovial fluid?

Accepted Answer

It lubricates, cushions, and supports chondrocytes

Question 6

Improper circulation of synovial fluid in a joint would most likely result in:

Accepted Answer

Degeneration of articular cartilage due to lack of nutrients and waste removal

Question 7

Which movement describes decreasing the angle between two bones at a hinge joint?

Accepted Answer

Flexion

Question 8

What type of movement occurs when the palm is turned from facing anteriorly to facing posteriorly?

Accepted Answer

Pronation

Question 9

Which equation best represents the relationship between joint stability (S) and range of motion (ROM)?

Accepted Answer

$$S = \frac{k}{ROM}$$

Question 10

Which accessory structure of a synovial joint acts as a shock absorber and reduces friction outside the joint capsule?

Accepted Answer

Bursa

Question 11

A patient presents with pain and stiffness in the joints, and imaging reveals rough, bristly collagen fibers on the articular cartilage. What is the most likely diagnosis?

Accepted Answer

Osteoarthritis

Question 12

Which ligament stabilizes the lateral surface of the elbow joint?

Accepted Answer

Radial collateral ligament

Question 13

Which of the following movements is possible at a ball-and-socket joint but NOT at a hinge joint?

Accepted Answer

Rotation

Question 14

Which structure increases the depth of the hip joint cavity and helps seal in synovial fluid?

Accepted Answer

Acetabular labrum

Question 15

A herniated disc is best described as:

Accepted Answer

The nucleus pulposus breaking through the anulus fibrosus and compressing spinal nerves

Question 16

Which of the following is a special movement of the foot that turns the sole inward?

Accepted Answer

Inversion

Question 17

Which ligament is most likely to be damaged in a severely hyperextended knee?

Accepted Answer

Anterior cruciate ligament (ACL)

Question 18

Which of the following best explains why diarthroses are more prone to dislocation than synarthroses?

Accepted Answer

Diarthroses allow greater range of motion, resulting in weaker joint stability

Question 19

Which of the following is NOT a function of the menisci in the knee joint?

Accepted Answer

Increasing friction between joint surfaces

Question 20

Which movement is required for a person to grasp an object by bringing the thumb toward the pads of the other fingers?

Accepted Answer

Opposition

Anatomy & Physiology: Joints – Structure, Classification, and Movement

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