Q: Which of the following equations best represents the relationship between the number of reinforcing ligaments ($$n) $$and joint stability ($$S$$), assuming all other factors are constant?

$$S = k \times n$$, where $$k is a $$positive constant

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

Which structural category of joint is characterized by bones held together by dense fibrous connective tissue and no joint cavity?

Accepted Answer

Fibrous joint

Question 3

A patient presents with pain and swelling in the knee after a twisting injury. Which type of joint is most likely affected, and what is a key feature of this joint?

Accepted Answer

Synovial joint; contains a fluid-filled cavity

Question 4

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

Accepted Answer

Strengthens the fibrous layer of the joint capsule

Question 5

Which movement describes turning the sole of the foot medially?

Accepted Answer

Inversion

Question 6

A dentist is examining the joint that holds a tooth in its socket. What is the name and structural classification of this joint?

Accepted Answer

Gomphosis; fibrous joint

Question 7

Which of the following best describes the movement of abduction?

Accepted Answer

Movement along the frontal plane away from the midline

Question 8

Which type of synovial joint allows for movement in all three planes (triaxial movement)?

Accepted Answer

Ball-and-socket joint

Question 9

A football player suffers a shoulder dislocation. Which structural feature of synovial joints is most responsible for joint stability in this scenario?

Accepted Answer

Muscle tone keeping tendons taut

Question 10

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

Accepted Answer

Hinge joint – elbow

Question 11

Which of the following equations best represents the relationship between the number of reinforcing ligaments ($$n) $$and joint stability ($$S$$), assuming all other factors are constant?

Accepted Answer

$$S = k 	imes n$$, where $$k is a $$positive constant

Question 12

Which of the following movements is unique to the thumb and allows it to touch the tips of other fingers?

Accepted Answer

Opposition

Question 13

A patient is unable to perform dorsiflexion of the foot. Which movement is impaired?

Accepted Answer

Bending the foot toward the shin

Question 14

Which of the following best describes a symphysis joint?

Accepted Answer

Bones united by fibrocartilage; slightly movable

Question 15

Which of the following is a correct description of a plane joint?

Accepted Answer

Allows for gliding or slipping movements

Question 16

Which of the following is a real-life example of a syndesmosis joint?

Accepted Answer

The interosseous membrane between the radius and ulna

Question 17

Which of the following best explains why the hip joint is less likely to dislocate than the shoulder joint?

Accepted Answer

The hip joint has a deeper socket and stronger ligaments

Question 18

Which of the following movements occurs when the mandible is pulled toward the neck?

Accepted Answer

Retraction

Question 19

A gymnast performing a split is demonstrating which type of movement at the hip joint?

Accepted Answer

Abduction

Question 20

Which of the following is a distinguishing feature of a hinge joint?

Accepted Answer

Allows only flexion and extension

Anatomy & Physiology Study Notes: The Skeletal System – Joints (Chapter 8)

Guida di studio - Domande di pratica

Study guide - Flashcard