Question 1

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

Accepted Answer

Secretion

Question 2

A patient suffers a deep laceration that damages the connective tissue layer surrounding individual muscle fibers. Which layer is most likely affected?

Accepted Answer

Endomysium

Question 3

Which type of muscle tissue is responsible for voluntary movements such as walking?

Accepted Answer

Skeletal muscle

Question 4

The sarcomere is the functional unit of skeletal muscle contraction. Which two types of filaments are found within a sarcomere?

Accepted Answer

Thick and thin filaments

Question 5

During muscle contraction, calcium ions are released from which organelle within the muscle fiber?

Accepted Answer

Sarcoplasmic reticulum

Question 6

Which connective tissue layer surrounds a bundle of muscle fibers (fascicle)?

Accepted Answer

Perimysium

Question 7

A patient is experiencing irregular heartbeats due to damage in the muscle tissue of the heart. Which type of muscle tissue is affected?

Accepted Answer

Cardiac muscle

Question 8

Which of the following best describes the organization of a skeletal muscle as an organ?

Accepted Answer

It includes muscle tissue, connective tissue, blood vessels, and nerves.

Question 9

Which of the following equations correctly represents the relationship between force ($$F$$), mass ($$m$$), and acceleration ($$a) $$during muscle contraction?

Accepted Answer

$$F = m 	imes a$$

Question 10

Which structure is directly responsible for transmitting the action potential from the neuron to the muscle fiber at the neuromuscular junction?

Accepted Answer

Acetylcholine receptor

Question 11

Which muscle tissue type is characterized by non-striated, spindle-shaped cells and is found in the walls of hollow organs?

Accepted Answer

Smooth muscle

Question 12

A marathon runner relies on the ability of muscle tissue to return to its original length after stretching. Which property of muscle tissue does this describe?

Accepted Answer

Elasticity

Question 13

Which of the following is a function of skeletal muscle tissue?

Accepted Answer

Moving bones to produce body movement

Question 14

If the perimysium is damaged, which structure is most likely to be affected?

Accepted Answer

Muscle fascicles

Question 15

Which of the following best explains why cardiac muscle cells are branched and interconnected?

Accepted Answer

To facilitate rapid and coordinated contraction for pumping blood

Question 16

Which equation best represents the calculation of muscle cross-sectional area ($$A) if $$the diameter ($$d) of a $$muscle fiber is known?

Accepted Answer

$$A = \pi \left( \frac{d}{2} \$$right)^2$$

Question 17

Which of the following is TRUE regarding the organization of skeletal muscle fibers?

Accepted Answer

Muscle fascicles are bundles of muscle fibers.

Question 18

A patient with myasthenia gravis has impaired transmission at the neuromuscular junction. Which neurotransmitter is most likely affected?

Accepted Answer

Acetylcholine

Question 19

Which of the following is a unique feature of cardiac muscle tissue compared to skeletal and smooth muscle?

Accepted Answer

Intercalated discs

Question 20

Which of the following best describes the role of mitochondria in skeletal muscle fibers?

Accepted Answer

They generate ATP required for muscle contraction.

Chapter 10: Muscle Tissue – Structure, Types, and Function

Guida di studio - Domande di pratica

Study guide - Flashcard