Question 1

Which of the following best describes a synarthrosis joint?

Accepted Answer

An immovable joint where bones are tightly bound by dense fibrous connective tissue

Question 2

A dentist is treating a patient for a problem with the periodontal ligament. Which type of joint is directly affected?

Accepted Answer

Gomphosis

Question 3

Which structural feature is unique to synovial joints and is essential for their function?

Accepted Answer

Joint (articular) capsule lined with synovial membrane

Question 4

A football player suffers a torn anterior cruciate ligament (ACL). What type of tissue is primarily damaged?

Accepted Answer

Ligament

Question 5

Which of the following joints allows movement in three planes and is classified as triaxial?

Accepted Answer

Shoulder joint

Question 6

Which movement describes decreasing the angle between two bones in the anterior-posterior plane?

Accepted Answer

Flexion

Question 7

A patient presents with a herniated intervertebral disc. Which structure is most likely protruding into the vertebral canal?

Accepted Answer

Nucleus pulposus

Question 8

Which type of synovial joint permits only rotation and is found at the proximal radioulnar joint?

Accepted Answer

Pivot joint

Question 9

If a person moves their thumb toward the palm to grasp an object, which special movement is occurring?

Accepted Answer

Opposition

Question 10

Which equation best represents the relationship between joint mobility and strength?

Accepted Answer

$$Mobility \propto \frac{1}{Strength}$$

Question 11

A gymnast performs a split, moving her legs away from the midline. What type of movement is this?

Accepted Answer

Abduction

Question 12

Which joint type is characterized by bones connected by ligaments and allows slight movement, such as the distal joint between the tibia and fibula?

Accepted Answer

Syndesmosis

Question 13

Which of the following is NOT a function of synovial fluid?

Accepted Answer

Bone formation

Question 14

A patient is diagnosed with a sprain. Which structure is primarily affected?

Accepted Answer

Ligament

Question 15

Which type of synovial joint is found at the base of the thumb and allows movement in two planes?

Accepted Answer

Saddle joint

Question 16

Which movement involves rotating the forearm so the palm faces anteriorly in anatomical position?

Accepted Answer

Supination

Question 17

Which joint is most likely to suffer a dislocation due to its high mobility and low structural strength?

Accepted Answer

Shoulder joint

Question 18

Which of the following best describes a symphysis joint?

Accepted Answer

Bones separated by fibrocartilage

Question 19

A patient is unable to perform dorsiflexion at the ankle. Which movement is impaired?

Accepted Answer

Lifting the toes upward

Question 20

Which of the following is an example of a condylar joint?

Accepted Answer

Metacarpophalangeal joint

Chapter 9: Articulations – Classification, Structure, and Movement of Joints

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