Question 1

Which of the following best describes the primary function of skeletal muscle tissue?

Accepted Answer

Produce movement through contractile force

Question 2

The oxygen-binding protein found in muscle cells is ________.

Accepted Answer

Myoglobin

Question 3

Which of the following is NOT a muscle primarily involved in the breathing process?

Accepted Answer

Latissimus dorsi

Question 4

Spongy bone contains ________.

Accepted Answer

Trabeculae

Question 5

Which of the following muscles is involved in producing horizontal wrinkles in the forehead?

Accepted Answer

Frontal belly of the epicranius

Question 6

After nervous stimulation stops, what prevents acetylcholine (ACh) in the synaptic cleft from continuing to stimulate contraction?

Accepted Answer

Acetylcholinesterase breaks apart the ACh

Question 7

The 'true wrist' or carpus consists of ________.

Accepted Answer

A group of eight short bones united by ligaments

Question 8

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

Accepted Answer

Communication

Question 9

Which of the following would be recruited later in muscle stimulation when contractile strength increases?

Accepted Answer

Motor units with larger, less excitable neurons

Question 10

Which of the following statements is true?

Accepted Answer

Striated muscle cells are long and cylindrical with many nuclei.

Question 11

Bones are constantly undergoing resorption (breaking bone down) for various reasons. Which of the following cells accomplishes this process?

Accepted Answer

Osteoclast

Question 12

What part of the sarcolemma contains acetylcholine receptors?

Accepted Answer

Motor end plate

Question 13

What structure in skeletal muscle cells functions in calcium storage?

Accepted Answer

Sarcoplasmic reticulum

Question 14

The contractile units of skeletal muscles are ________.

Accepted Answer

Myofibrils

Question 15

The pelvic girdle does NOT include the ________.

Accepted Answer

Femur

Question 16

The ability of muscle to shorten forcibly when adequately stimulated is known as ________, and sets muscle apart from other tissue types.

Accepted Answer

Contractility

Question 17

Yellow bone marrow contains a large percentage of ________.

Accepted Answer

Fat

Question 18

Ossification (osteogenesis) is the process of ________.

Accepted Answer

Bone formation

Question 19

The central (Haversian) canal that runs through the core of each osteon is the site of ________.

Accepted Answer

Blood vessels and nerve fibers

Question 20

Prevention of osteoporosis includes adequate intake of ________.

Accepted Answer

Calcium and vitamin D

Anatomy & Physiology: Musculoskeletal System Study Guide

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