Question 1

Which of the following best describes the primary function of synovial fluid within a synovial joint?

Accepted Answer

To nourish the articular cartilage and reduce friction between articulating surfaces

Question 2

A patient presents with inflammation of the bursa in the shoulder. Which of the following best describes the role of a bursa in a synovial joint?

Accepted Answer

It acts as a fluid-filled sac that reduces friction between moving structures such as tendons and bones

Question 3

Which movement is correctly paired with its description?

Accepted Answer

Flexion: Decreasing the angle between two bones at a joint

Question 4

A baseball pitcher is able to rotate his arm in a circular motion at the shoulder. Which structural class of synovial joint allows for this multiaxial movement?

Accepted Answer

Ball-and-socket joint

Question 5

Which of the following best distinguishes a tendon from a ligament?

Accepted Answer

A tendon connects muscle to bone, while a ligament connects bone to bone

Question 6

Which of the following movements would be classified as a special movement unique to the thumb?

Accepted Answer

Opposition

Question 7

A person stands on their tiptoes to reach a high shelf. Which movement at the ankle joint is primarily responsible for this action?

Accepted Answer

Plantarflexion

Question 8

Which of the following best describes the function of the articular cartilage in a synovial joint?

Accepted Answer

To absorb shock and reduce friction between articulating bones

Question 9

Which type of synovial joint allows for movement in only one plane, such as the elbow?

Accepted Answer

Hinge joint

Question 10

A patient is unable to rotate their forearm so that the palm faces upward. Which movement is impaired?

Accepted Answer

Supination

Question 11

Which of the following best describes the difference between a plane joint and a pivot joint?

Accepted Answer

A plane joint allows for gliding movements in multiple directions, while a pivot joint allows for rotation around a single axis

Question 12

Which functional class of synovial joint allows for movement around two axes, such as the wrist joint?

Accepted Answer

Biaxial joint

Question 13

During a physical exam, a doctor asks a patient to move their jaw forward. Which special movement is being demonstrated?

Accepted Answer

Protraction

Question 14

Which structure forms the inner lining of the articular capsule and is responsible for producing synovial fluid?

Accepted Answer

Synovial membrane

Question 15

A soccer player suffers a torn anterior cruciate ligament (ACL). What is the primary function of ligaments in synovial joints?

Accepted Answer

To connect bone to bone and stabilize the joint

Question 16

Which movement involves decreasing the angle between the dorsum of the foot and the leg, such as when lifting the toes upward?

Accepted Answer

Dorsiflexion

Question 17

Which of the following is a correct pairing of a structural class of synovial joint and an example location in the body?

Accepted Answer

Condylar joint – metacarpophalangeal (knuckle) joint

Question 18

A person shrugs their shoulders, raising them toward their ears. Which movement is being performed?

Accepted Answer

Elevation

Question 19

Which of the following best describes the movement of circumduction?

Accepted Answer

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

Question 20

Which supportive structure of the synovial cavity is most likely to become inflamed in a condition known as 'tenosynovitis'?

Accepted Answer

Tendon sheath

Articulations (Joints): Structure, Function, and Movement

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