Q: Which of the following equations correctly represents the production of ATP during aerobic cellular respiration in muscle fibers?

$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} \rightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + \text{ATP}$$

Question 1

Which of the following is NOT a function of muscle tissue?

Accepted Answer

Storing calcium ions

Question 2

A patient is unable to voluntarily move their arm muscles, but their heart continues to beat normally. Which type of muscle tissue is most likely affected?

Accepted Answer

Skeletal muscle tissue

Question 3

Which property of muscle tissue allows it to return to its original shape after contraction?

Accepted Answer

Elasticity

Question 4

During embryonic development, skeletal muscle fibers are formed by the fusion of which cells?

Accepted Answer

Myoblasts

Question 5

Which connective tissue layer surrounds individual muscle fibers?

Accepted Answer

Endomysium

Question 6

A muscle contraction is initiated when calcium ions are released from which structure within the muscle fiber?

Accepted Answer

Sarcoplasmic reticulum

Question 7

Which protein directly binds to calcium ions during skeletal muscle contraction?

Accepted Answer

Troponin

Question 8

In the sliding filament theory, what happens to the length of the thick and thin filaments during contraction?

Accepted Answer

Neither filament changes length

Question 9

Which type of skeletal muscle fiber is best suited for endurance activities such as marathon running?

Accepted Answer

Type I (slow oxidative)

Question 10

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

Accepted Answer

Synergist

Question 11

Which of the following best describes a third-class lever in the musculoskeletal system?

Accepted Answer

The effort is between the fulcrum and the load

Question 12

Which fascicle arrangement allows for the greatest range of motion but the least power?

Accepted Answer

Parallel

Question 13

Which muscle tissue type is striated, involuntary, and autorhythmic?

Accepted Answer

Cardiac muscle

Question 14

What is the role of acetylcholine at the neuromuscular junction?

Accepted Answer

It depolarizes the muscle fiber membrane

Question 15

Which of the following equations correctly represents the production of ATP during aerobic cellular respiration in muscle fibers?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} ightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + 	ext{ATP}$$

Question 16

A patient with a genetic mutation affecting gap junctions in muscle tissue would most likely have problems with which type of muscle?

Accepted Answer

Cardiac muscle

Question 17

Which structure in a muscle fiber is responsible for propagating the action potential deep into the cell?

Accepted Answer

T-tubules

Question 18

Which type of muscle contraction occurs when the muscle length does not change, but tension increases?

Accepted Answer

Isometric contraction

Question 19

Which of the following best describes the arrangement of fascicles in a pennate muscle?

Accepted Answer

Fascicles are attached obliquely to a tendon

Question 20

Which muscle fiber type would be most prevalent in the muscles of a sprinter?

Accepted Answer

Type IIb (fast glycolytic)

Muscle Tissue and Muscular System: Structure, Function, and Organization

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