Question 1

Which type of muscle tissue is capable of hyperplasia, allowing for an increase in cell number, and is commonly found in the walls of hollow organs such as the intestines?

Accepted Answer

Smooth muscle

Question 2

A patient suffers a heart attack and develops scar tissue in the heart. Which muscle type is most affected, and what is a key histological feature of this tissue?

Accepted Answer

Cardiac muscle; intercalated discs

Question 3

During weightlifting, which muscle type is primarily responsible for generating force to move the bones, and what cellular adaptation occurs with regular resistance training?

Accepted Answer

Skeletal muscle; hypertrophy

Question 4

Which of the following best describes the arrangement of thick and thin filaments within a sarcomere?

Accepted Answer

Thin filaments are anchored to the Z line; thick filaments are anchored to the M line

Question 5

Which equation correctly represents the relationship between force ($$F$$), cross-sectional area ($$A$$), and muscle tension ($$T) in $$skeletal muscle contraction?

Accepted Answer

$$T = \frac{F}{A}$$

Question 6

A reflex arc involves several components. Which is the correct sequence for a somatic reflex arc controlling skeletal muscle?

Accepted Answer

Sensory receptor → Afferent neuron → IC → Efferent neuron → Effector organ

Question 7

Which neurotransmitter is released at the neuromuscular junction to initiate skeletal muscle contraction, and what enzyme degrades it in the synaptic cleft?

Accepted Answer

Acetylcholine; acetylcholinesterase

Question 8

Which muscle type is described as myogenic, branched, and responsible for pumping blood throughout the body?

Accepted Answer

Cardiac muscle

Question 9

A muscle fiber is surrounded by which connective tissue layer, and what is the function of this layer?

Accepted Answer

Endomysium; surrounds individual muscle fibers and provides support

Question 10

Which of the following best explains the 'all-or-none' principle in skeletal muscle contraction?

Accepted Answer

A single muscle fiber contracts maximally or not at all when stimulated above threshold

Question 11

During shivering, which physiological process is primarily responsible for increasing body temperature?

Accepted Answer

Skeletal muscle contraction generating heat (thermogenesis)

Question 12

Which muscle type is characterized by being non-striated, capable of hyperplasia, and often regulated by reflex arcs or myogenic activity?

Accepted Answer

Smooth muscle

Question 13

A person is performing a biceps curl. Which anatomical term describes the muscle attachment point that moves during this action?

Accepted Answer

Insertion

Question 14

Which of the following muscle fiber types is best suited for rapid, powerful contractions but fatigues quickly?

Accepted Answer

Fast fibers (Type II)

Question 15

Which equation best represents the calculation of muscle power ($$P) $$given force ($$F) $$and velocity ($$v) of $$contraction?

Accepted Answer

$$P = F 	imes v$$

Question 16

Which structure within the sarcomere serves as the boundary between adjacent sarcomeres?

Accepted Answer

Z line

Question 17

Which process leads to an increase in muscle size due to an increase in the number of myofibrils within each muscle fiber, but not an increase in the number of muscle fibers?

Accepted Answer

Hypertrophy

Question 18

Which muscle type is most likely to undergo atrophy due to disuse, age, or disease, resulting in reduced size, tone, and power?

Accepted Answer

Skeletal muscle

Question 19

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

Accepted Answer

They act as stretch receptors and play a role in muscle tone and growth

Question 20

Which muscle group is responsible for extending the knee and is located on the anterior aspect of the thigh?

Accepted Answer

Quadriceps

Muscle Tissue Types and Skeletal Muscle Anatomy

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드