Muscles

Question 1

What are the three main types of muscle tissue in the human body?

Answer 1

Skeletal, cardiac, and smooth muscle.

Question 2

True or False: Skeletal muscle is involuntary.

Answer 2

False.

Question 3

Fill in the blank: __________ muscle is responsible for pumping blood throughout the body.

Answer 3

Cardiac.

Question 4

Which type of muscle is striated and under voluntary control?

Answer 4

Skeletal muscle.

Question 5

What type of muscle tissue is found in the walls of hollow organs?

Answer 5

Smooth muscle.

Question 6

True or False: Cardiac muscle can regenerate quickly after injury.

Answer 6

False.

Question 7

What is the primary function of smooth muscle?

Answer 7

To facilitate involuntary movements such as digestion and blood vessel constriction.

Question 8

What is the characteristic feature of cardiac muscle cells?

Answer 8

They are interconnected by intercalated discs.

Question 9

Which muscle type is responsible for voluntary movements like walking and lifting?

Answer 9

Skeletal muscle.

Question 10

Fill in the blank: Cardiac muscle is __________ in nature.

Answer 10

Involuntary.

Question 11

What kind of muscle tissue is not striated?

Answer 11

Smooth muscle.

Question 12

True or False: Skeletal muscle fibers can be multinucleated.

Answer 12

True.

Question 13

Which muscle type has a single nucleus per cell?

Answer 13

Smooth muscle.

Question 14

What type of muscle tissue is found only in the heart?

Answer 14

Cardiac muscle.

Question 15

Fill in the blank: Smooth muscle contractions are typically __________.

Answer 15

Slow and sustained.

Question 16

What triggers the contraction of cardiac muscle?

Answer 16

Electrical impulses from the heart’s pacemaker.

Question 17

Which type of muscle is primarily responsible for posture?

Answer 17

Skeletal muscle.

Question 18

True or False: Smooth muscle is found in the respiratory tract.

Answer 18

True.

Question 19

What is the role of calcium ions in muscle contraction?

Answer 19

They initiate the contraction process by binding to regulatory proteins.

Question 20

Fill in the blank: The __________ is the functional unit of skeletal muscle.

Answer 20

Sarcomere.

Question 21

Which type of muscle has a high endurance capacity?

Answer 21

Cardiac muscle.

Question 22

What is the main energy source for muscle contraction?

Answer 22

Adenosine triphosphate (ATP).

Question 23

True or False: All muscle types can undergo hypertrophy.

Answer 23

False.

Question 24

What is the primary role of skeletal muscle?

Answer 24

To facilitate voluntary movements and maintain body posture.

Question 25

Fill in the blank: __________ muscle is essential for peristalsis in the digestive tract.

Answer 25

Smooth.

Question 26

What type of muscle tissue has the fastest contraction speed?

Answer 26

Skeletal muscle.

Question 27

Which muscle type is involved in involuntary control of blood flow?

Answer 27

Smooth muscle.