Question 1

Which of the following best describes a synarthrosis joint?

Accepted Answer

An immovable joint that is very strong, such as a suture in the skull

Question 2

A patient presents with a sprain in the ankle. Which structure is most likely stretched or torn?

Accepted Answer

Ligament

Question 3

Which type of joint is classified as diarthrosis and allows movement in three planes?

Accepted Answer

Ball-and-socket joint

Question 4

What is the primary function of synovial fluid within a joint capsule?

Accepted Answer

To provide lubrication, nutrient distribution, and shock absorption

Question 5

Which of the following is a cartilaginous joint that is immovable?

Accepted Answer

Synchondrosis

Question 6

A football player suffers a dislocation (luxation) of the shoulder. What is the most likely consequence?

Accepted Answer

Damage to articular cartilage, ligaments, and joint capsule

Question 7

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

Accepted Answer

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

Question 8

Which accessory structure of a synovial joint acts as a cushion and reduces friction between tendons and bones?

Accepted Answer

Bursa

Question 9

Which movement describes decreasing the angle between two bones at a joint?

Accepted Answer

Flexion

Question 10

A patient is unable to abduct their arm at the shoulder. Which type of synovial joint is most likely affected?

Accepted Answer

Ball-and-socket joint

Question 11

Which of the following is a fibrous joint that connects the teeth to the jaw?

Accepted Answer

Gomphosis

Question 12

Which joint type is found between the tibia and fibula and allows slight movement?

Accepted Answer

Syndesmosis

Question 13

Which of the following movements is possible at a biaxial synovial joint?

Accepted Answer

Movement in two planes, such as flexion/extension and abduction/adduction

Question 14

Which structure is responsible for producing the slippery proteoglycans found in synovial fluid?

Accepted Answer

Fibroblasts in the synovial membrane

Question 15

Which of the following best describes circumduction?

Accepted Answer

Movement that combines flexion, extension, abduction, and adduction in a circular motion

Question 16

Which joint type is most likely to be affected by osteoarthritis due to its high mobility and lower strength?

Accepted Answer

Diarthrosis (synovial joint)

Question 17

A patient has a partial dislocation of the knee. What is the medical term for this condition?

Accepted Answer

Subluxation

Question 18

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

Accepted Answer

Bone formation

Question 19

Which equation would you use to calculate the total range of motion (ROM) for a triaxial joint if each axis allows $$x$$, $$y$$, and $$z$$ degrees of movement?

Accepted Answer

$$ROM_{total} = x + y + z$$

Question 20

Which of the following structures is NOT considered an accessory structure of a synovial joint?

Accepted Answer

Epiphyseal plate

Articulations: Structure and Classification of Joints

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