$$F_{muscle} \times d_{muscle} = F_{load} \times d_{load}$$

Question 1

Which of the following is NOT a function of the skeletal system?

Accepted Answer

Regulation of body temperature

Question 2

Which component is found in both the skeletal and muscular systems?

Accepted Answer

None; they are unique to each system

Question 3

A patient suffers a fracture in the shaft of their femur. Which part of the long bone is affected?

Accepted Answer

Diaphysis

Question 4

Which type of bone is characterized by being cuboid in shape and is found in the wrist?

Accepted Answer

Short bone

Question 5

Which of the following best describes the appendicular skeleton?

Accepted Answer

Includes the pectoral girdle, pelvic girdle, and limbs

Question 6

Which process is responsible for the formation of most bones in the body and allows for lengthwise growth?

Accepted Answer

Endochondral ossification

Question 7

What is the primary function of osteoclasts in bone remodeling?

Accepted Answer

Resorb old or damaged bone

Question 8

Which joint type allows for the greatest range of movement?

Accepted Answer

Synovial joint

Question 9

Which connective tissue surrounds individual muscle fibers?

Accepted Answer

Endomysium

Question 10

During elbow flexion, which muscle acts as the agonist?

Accepted Answer

Biceps brachii

Question 11

Which type of muscular contraction occurs when a muscle generates force without changing length?

Accepted Answer

Isometric contraction

Question 12

If a muscle increases in length due to an increase in the number of sarcomeres, what is most likely occurring?

Accepted Answer

Flexibility training

Question 13

Which formula best represents the relationship between muscle force and lever systems in the body?

Accepted Answer

$$F_{muscle} 	imes d_{muscle} = F_{load} 	imes d_{load}$$

Question 14

A patient with osteoporosis is prescribed calcium and vitamin D. What is the primary reason for this treatment?

Accepted Answer

To increase bone mineral density and reduce bone resorption

Question 15

Which muscle attachment is most proximal and least moveable?

Accepted Answer

Origin

Question 16

Which of the following best describes a sesamoid bone?

Accepted Answer

Oval, develops in tendons

Question 17

Which muscle fiber orientation is most likely to produce elevation of the scapula?

Accepted Answer

Upper fibers of the trapezius

Question 18

Which of the following is a correct statement about muscle contraction?

Accepted Answer

Muscles only pull, they never push

Question 19

Which structure is responsible for the repeating contractile units in skeletal muscle?

Accepted Answer

Sarcomere

Question 20

Which of the following is true regarding the antagonist muscle during elbow extension?

Accepted Answer

Biceps brachii acts as the antagonist

Introduction to the Musculoskeletal System: Structure and Function

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