Question 1

Which of the following best describes a synarthrosis joint?

Accepted Answer

An immovable joint, such as a suture in the skull

Question 2

A patient presents with a fracture at the inferior tibiofibular joint. Which type of fibrous joint is affected?

Accepted Answer

Syndesmosis

Question 3

Which structural classification of joints is characterized by a fluid-filled cavity and is always diarthrotic?

Accepted Answer

Synovial

Question 4

The periodontal ligament, which holds a tooth in its socket, is an example of which type of joint?

Accepted Answer

Gomphosis

Question 5

Which of the following best explains why sutures in the skull become synostoses with age?

Accepted Answer

The bones fuse together, eliminating the joint cavity

Question 6

A dentist is treating a patient with a loose tooth. Which joint and connective tissue are directly involved?

Accepted Answer

Gomphosis; periodontal ligament

Question 7

Which of the following statements about syndesmoses is correct?

Accepted Answer

They are connected by ligaments, and the amount of movement depends on fiber length

Question 8

If a joint is classified as a synchondrosis, which of the following must be true?

Accepted Answer

It is a temporary joint, such as the epiphyseal plate, and is united by hyaline cartilage

Question 9

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

Accepted Answer

Syndesmosis – interosseous membrane between radius and ulna

Question 10

A child’s skull has not yet fused at the sutures. What is the functional classification of these joints at this stage?

Accepted Answer

Synarthroses

Question 11

Which of the following best describes the difference between a suture and a syndesmosis?

Accepted Answer

A suture is found only in the skull with very short fibers, while a syndesmosis is held together by longer ligaments and allows some movement

Question 12

Which of the following equations best represents the relationship between the length of connective tissue fibers ($$L) in a $$syndesmosis and the degree of movement ($$M) $$allowed?

Accepted Answer

$$M \propto L$$

Question 13

A patient has a genetic disorder that prevents the ossification of sutures in the skull. What is the most likely consequence?

Accepted Answer

The skull will be more flexible, increasing risk of brain injury

Question 14

Which of the following is NOT a characteristic of fibrous joints?

Accepted Answer

Contain a synovial fluid-filled cavity

Question 15

If the periodontal ligament is damaged, which function is most directly compromised?

Accepted Answer

Anchoring of the tooth in its socket

Classification and Structure of Joints (Articulations)

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