Question 1

Which of the following best describes a synarthrosis joint?

Accepted Answer

A joint that permits no movement

Question 2

Which of the following is an example of a synchondrosis?

Accepted Answer

The epiphyseal plate of a growing long bone

Question 3

Which type of movement is associated with the opposable thumb and is essential for grasping objects?

Accepted Answer

Opposition

Question 4

A patient is unable to perform plantar flexion at the ankle. Which movement is most likely impaired?

Accepted Answer

Pointing the toes downward

Question 5

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

Accepted Answer

Connects bone to bone and stabilizes the joint

Question 6

Which of the following is a structural property of a gomphosis?

Accepted Answer

It is a fibrous joint that anchors a tooth to its socket

Question 7

Which of the following best describes the difference between a tendon and an aponeurosis?

Accepted Answer

A tendon is a cord-like structure connecting muscle to bone, while an aponeurosis is a broad, flat sheet of connective tissue

Question 8

Which of the following movements describes turning the palm upward, as when holding a bowl of soup?

Accepted Answer

Supination

Question 9

A lever system in the body is said to be at a mechanical advantage when:

Accepted Answer

The effort arm is longer than the load arm, making it easier to move a heavy load

Question 10

Which of the following best describes the function of the antagonist muscle during a movement?

Accepted Answer

It opposes the action of the agonist

Question 11

Which of the following is a correct example of a biaxial synovial joint?

Accepted Answer

Metacarpophalangeal (knuckle) joint

Question 12

Which of the following best describes the movement of circumduction at the shoulder?

Accepted Answer

A combination of flexion, extension, abduction, and adduction resulting in a circular motion

Question 13

Which of the following is a function of synovial fluid?

Accepted Answer

Lubricates the joint and reduces friction

Question 14

Which of the following best describes the role of the perimysium in skeletal muscle?

Accepted Answer

It surrounds bundles (fascicles) of muscle fibers

Question 15

A muscle that assists the prime mover in performing its action is called a:

Accepted Answer

Synergist

Question 16

Which of the following is the correct formula for mechanical advantage (MA) in a lever system?

Accepted Answer

$$MA = \frac{	ext{effort arm}}{	ext{load arm}}$$

Question 17

Which of the following best describes a symphysis joint?

Accepted Answer

A joint where bones are connected by fibrocartilage

Question 18

Which of the following movements would be impaired if the sternocleidomastoid muscle was paralyzed?

Accepted Answer

Rotation and flexion of the head

Question 19

Which of the following best describes the difference between a fibrous and a cartilaginous joint?

Accepted Answer

Fibrous joints are connected by dense connective tissue, while cartilaginous joints are connected by cartilage

Question 20

A patient presents with a muscle that is unable to relax after contraction, resulting in a 'muscle knot.' Which of the following best explains the physiological basis for this condition?

Accepted Answer

There is a localized spasm due to sustained contraction of muscle fibers

Study Guide: Articulations and the Muscular System

Guida di studio - Domande di pratica

Study guide - Flashcard