Q: Which of the following equations 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 fibrous joint?

Accepted Answer

Bones joined by dense fibrous connective tissue, with no joint cavity, and most are immovable.

Question 2

A patient presents with pain and swelling at the base of the thumb after repetitive grasping movements. Which type of synovial joint is most likely affected?

Accepted Answer

Saddle joint

Question 3

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

Accepted Answer

Bones joined by dense fibrous connective tissue only

Question 4

Which factor plays the most significant role in maintaining the stability of synovial joints?

Accepted Answer

Muscle tone

Question 5

A football player suffers a shoulder dislocation after being tackled. Which anatomical feature contributes most to the shoulder's susceptibility to dislocation?

Accepted Answer

The shallow glenoid cavity provides poor support for the humeral head.

Question 6

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

Accepted Answer

Gliding between intercarpal joints

Question 7

Which type of joint allows for rotation around a single axis, such as the proximal radioulnar joint?

Accepted Answer

Pivot joint

Question 8

A patient is unable to perform dorsiflexion of the foot. Which movement is impaired?

Accepted Answer

Bending the foot toward the shin

Question 9

Which of the following best describes the function of bursae in synovial joints?

Accepted Answer

Reduce friction where ligaments, muscles, skin, or bones rub together

Question 10

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

Accepted Answer

Ball-and-socket joint: Hip joint

Question 11

A gymnast performing a split is demonstrating which type of angular movement at the hip joint?

Accepted Answer

Abduction

Question 12

Which of the following statements about articular cartilage is TRUE?

Accepted Answer

It prevents crushing of bone ends by providing a smooth, lubricated surface.

Question 13

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

Accepted Answer

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

Question 14

A patient with a sprained ankle has stretched or torn ligaments. Which of the following best explains why healing is slow?

Accepted Answer

Ligaments have poor vascularization, so partial tears repair very slowly.

Question 15

Which of the following movements is unique to the thumb and allows humans to grasp objects?

Accepted Answer

Opposition

Question 16

Which of the following best describes the difference between a symphysis and a synchondrosis?

Accepted Answer

A symphysis is united by fibrocartilage, while a synchondrosis is united by hyaline cartilage.

Question 17

Which of the following clinical conditions is characterized by inflammation of the elongated bursa wrapped around a tendon?

Accepted Answer

Tendinitis

Question 18

Which of the following best explains why the knee joint is more susceptible to injury compared to the hip joint?

Accepted Answer

The knee joint has a less stable articular surface and relies more on ligaments and muscle tone for stability.

Question 19

Which of the following movements occurs when the sole of the foot faces medially?

Accepted Answer

Inversion

Question 20

A patient is diagnosed with osteoarthritis. Which of the following best describes this condition?

Accepted Answer

A chronic degenerative disease that damages joints over time

Chapter 8: Joints – Structure, Classification, and Clinical Implications

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