Q: Which equation best represents the relationship between joint stability and mobility?

$$\text{Stability} \propto \frac{1}{\text{Mobility}}$$

Question 1

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

Accepted Answer

Feeds cartilage, lubricates the joint, and absorbs shock

Question 2

A patient presents with a dislocated shoulder after a sports injury. Which of the following statements best explains why the shoulder is more prone to dislocation than the hip?

Accepted Answer

The shoulder is the most movable and least stable joint, with a rotator cuff that is frequently injured

Question 3

Which joint type is correctly matched with its structural classification and example?

Accepted Answer

Suture – Fibrous – Skull

Question 4

A gymnast performs a split, moving her legs away from the midline. Which synovial joint movement is she demonstrating?

Accepted Answer

Abduction

Question 5

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

Accepted Answer

Ligament connects bone to bone; tendon connects muscle to bone

Question 6

Which synovial joint type allows movement around multiple axes and is exemplified by the shoulder joint?

Accepted Answer

Ball-and-socket

Question 7

A patient is diagnosed with osteoarthritis. Which of the following best describes the underlying cause?

Accepted Answer

Wear and tear of articular cartilage

Question 8

Which structure in the knee joint is responsible for preventing hyperextension?

Accepted Answer

Anterior cruciate ligament (ACL)

Question 9

A patient with gout experiences severe joint pain. What is the primary pathological feature of gout?

Accepted Answer

Deposition of uric acid crystals in the joint

Question 10

Which of the following movements is defined as turning the palm upward?

Accepted Answer

Supination

Question 11

Which joint type is classified as biaxial and is exemplified by the knuckles?

Accepted Answer

Condylar

Question 12

A child’s growth plate is an example of which type of cartilaginous joint?

Accepted Answer

Synchondrosis

Question 13

Which of the following best describes the unhappy triad injury of the knee?

Accepted Answer

Damage to the medial meniscus, ACL, and MCL

Question 14

Which synovial joint movement is involved when you point your toes upward?

Accepted Answer

Dorsiflexion

Question 15

Which of the following joints is classified as a pivot joint and allows rotation around a single axis?

Accepted Answer

Atlas-axis joint

Question 16

A patient is unable to perform circumduction at the shoulder. Which joint type is primarily responsible for this movement?

Accepted Answer

Ball-and-socket

Question 17

Which of the following best describes the structural classification of the intervertebral disc joint?

Accepted Answer

Cartilaginous (symphysis)

Question 18

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

Accepted Answer

$$	ext{Stability} \propto \frac{1}{	ext{Mobility}}$$

Question 19

Which of the following is a correct match between synovial joint type and its axis of movement?

Accepted Answer

Hinge – Uniaxial

Question 20

A patient with rheumatoid arthritis is experiencing joint pain and swelling. Which of the following best describes the mechanism of this disease?

Accepted Answer

Autoimmune attack on joint tissues

Articulations (Joints): Structure, Function, and Clinical Relevance

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