Question 1

Which of the following best describes a synovial joint?

Accepted Answer

A joint separated by a fluid-filled cavity, allowing free movement.

Question 2

Which structure is responsible for reducing friction and nourishing cartilage in synovial joints?

Accepted Answer

Synovial fluid

Question 3

A football player suffers a blow to the outside of his knee and is diagnosed with a medial collateral ligament (MCL) injury. Which type of joint is affected?

Accepted Answer

Synovial joint

Question 4

Which of the following movements describes turning the palm so it faces posteriorly?

Accepted Answer

Pronation

Question 5

Which muscle of the rotator cuff is responsible for medially rotating the humerus?

Accepted Answer

Subscapularis

Question 6

A patient presents with pain and swelling in the joint, and lab tests reveal high uric acid levels. Which type of arthritis is most likely?

Accepted Answer

Gouty arthritis

Question 7

Which of the following best describes the function of ligaments in a synovial joint?

Accepted Answer

Reinforce the joint capsule and connect bone to bone

Question 8

Which type of synovial joint allows movement in all three planes and is exemplified by the shoulder and hip?

Accepted Answer

Ball and socket joint

Question 9

If a person is pointing their toes downward, which movement is occurring at the ankle?

Accepted Answer

Plantar flexion

Question 10

Which equation correctly represents the calculation of range of motion (ROM) at a synovial joint, given the initial angle $$\$$theta_1$$ and the final angle $$\$$theta_2$$?

Accepted Answer

$$ROM = \$$theta_2$$ - \$$theta_1$$

Question 11

A gymnast lands awkwardly and suffers a joint injury where the bones are completely out of place and not in contact. What is this injury called?

Accepted Answer

Dislocation (luxation)

Question 12

Which of the following is a distinguishing feature of a synovial joint compared to other joint types?

Accepted Answer

Presence of a joint cavity filled with fluid

Question 13

Which movement brings a limb toward the midline of the body?

Accepted Answer

Adduction

Question 14

Which of the following best describes the role of the meniscus in the knee joint?

Accepted Answer

Acts as a fibrocartilage pad to cushion and stabilize the joint

Question 15

Which rotator cuff muscle is innervated by the axillary nerve and is responsible for lateral rotation of the arm?

Accepted Answer

Teres minor

Question 16

A patient with rheumatoid arthritis is most likely to experience which of the following symptoms?

Accepted Answer

Chronic inflammation and autoimmune joint damage

Question 17

Which of the following best describes a symphysis joint?

Accepted Answer

Bones separated by a pad of fibrocartilage, slightly movable

Question 18

Which movement describes lifting a body part superiorly, such as shrugging the shoulders?

Accepted Answer

Elevation

Question 19

Which of the following is TRUE regarding the rotator cuff muscles?

Accepted Answer

They stabilize the shoulder joint and allow rotation of the arm.

Question 20

A patient is unable to rotate their thumb to touch the tips of their other fingers. Which movement is impaired?

Accepted Answer

Opposition

Joints: Structure, Function, and Clinical Relevance

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