Q: Which equation best represents the relationship between joint stability and the number of ligaments present?

$$\text{Stability} \propto \text{Number of Ligaments}$$

Question 1

Which of the following best describes a synovial joint?

Accepted Answer

Bones separated by a fluid-filled joint cavity, freely movable

Question 2

A football player suffers a shoulder dislocation after being tackled. Which structural feature of the shoulder joint most contributes to its susceptibility to dislocation?

Accepted Answer

Weak reinforcement of the joint anteriorly and inferiorly

Question 3

Which of the following is NOT a structural characteristic of synovial joints?

Accepted Answer

Bones joined by hyaline cartilage only

Question 4

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

Accepted Answer

Ball-and-socket joint

Question 5

A patient presents with pain and swelling in the area around the elbow after repetitive movement. The physician diagnoses inflammation of the tendon sheath. What is the most likely condition?

Accepted Answer

Tendinitis

Question 6

Which of the following factors plays the most important role in stabilizing synovial joints and preventing dislocations?

Accepted Answer

Muscle tone keeping tendons taut

Question 7

Which movement is described as turning the palm to face posteriorly?

Accepted Answer

Pronation

Question 8

Which joint type is correctly matched with its movement and example?

Accepted Answer

Pivot joint – uniaxial movement – proximal radioulnar joint

Question 9

A gymnast experiences a partial dislocation of the shoulder during a routine. What is the clinical term for this injury?

Accepted Answer

Subluxation

Question 10

Which equation best represents the relationship between joint stability and the number of ligaments present?

Accepted Answer

$$	ext{Stability} \propto 	ext{Number of Ligaments}$$

Question 11

Which of the following movements is an example of angular movement at a synovial joint?

Accepted Answer

Flexion of the elbow

Question 12

Which joint classification is most likely to be immovable?

Accepted Answer

Fibrous joint

Question 13

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

Accepted Answer

Opposition

Question 14

Which of the following is a correct description of a symphysis joint?

Accepted Answer

Fibrocartilage unites bones, slightly movable

Question 15

Which clinical condition is characterized by inflammation of the bursa, often caused by blow or friction?

Accepted Answer

Bursitis

Question 16

Which of the following best explains why cartilage injuries in joints often heal slowly?

Accepted Answer

Cartilage has poor vascularization

Question 17

Which movement involves bending the foot toward the shin?

Accepted Answer

Dorsiflexion

Question 18

Which of the following is a correct pairing of joint type and example?

Accepted Answer

Plane joint – intercarpal joints

Question 19

Which of the following is a function of synovial fluid in synovial joints?

Accepted Answer

Lubricates and nourishes articular cartilage

Question 20

A patient presents with swelling and pain in the knee after a fall. Imaging reveals stretching of ligaments but no bone displacement. What is the most likely diagnosis?

Accepted Answer

Sprain

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

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