Muscular System

Question 1

Prefixes for muscle

Answer 1

Myo-
Mys-
Sarco-

Question 2

Are muscle fiber and muscle cell synonymous?

Answer 2

Yes!

Question 3

What type of muscle tissue is this?

Answer 3

Skeletal Muscle Tissue

Question 4

What type of muscle tissue is this?

Answer 4

Cardiac Muscle Tissue

Question 5

What type of muscle tissue is this?

Answer 5

Smooth Muscle Tissue

Question 6

Name the parts!

Answer 6

1: Epimysium
2: Fascicle
3: Perimysium
4: Endomysium
5: Muscle Fiber (Muscle Cell)

Question 7

What is the cell membrane around individual muscle fibers called?

Answer 7

Sarcolemma

*once you are inside the individual muscle cell you cannot have tissues because tissues are made up of cells

Question 8

Describe a myofibril

Answer 8

The long regular arrangements that make up a striated muscle fiber.

Question 9

What is the white band?

Answer 9

Endomysium

Question 10

What is this called?

Answer 10

Sarcomere = basic contractile unit

Question 11

Identify parts of sarcomere!

Answer 11

1: Sarcomere
2: Z line
3: M line
4: Actin (thin) filaments
5: Elastic (titin) filaments
6: Myosin (thick) filaments

Question 12

Which filament has the golf club heads that walk during the contraction?

Answer 12

Myosin

Question 13

Can a muscle fiber have more than one neuromuscular j(x)?

Answer 13

No

Question 14

Can a single motor neuron touch multiple muscle fibers?

Answer 14

Yes!

Question 15

What is the basic unit of muscle tissue?

Answer 15

Muscle fiber

Question 16

What surrounds each muscle fiber?

Answer 16

Endomysium

Question 17

Fill in the blank: A bundle of muscle fibers is called a ______.

Answer 17

Fascicle

Question 18

What connective tissue surrounds a fascicle?

Answer 18

Perimysium

Question 19

What is the outermost layer of connective tissue that surrounds an entire muscle?

Answer 19

Epimysium

Question 20

Which type of muscle tissue is under voluntary control?

Answer 20

Skeletal muscle

Question 21

Multiple choice: Which type of muscle is responsible for involuntary movements?

A: Skeletal
B: Cardiac
C: Smooth

Answer 21

B: Cardiac
C: Smooth

Question 22

What is the role of tendons in the muscular system?

Answer 22

To attach muscles to bones

Question 23

True or False: Smooth muscle is found in the walls of hollow organs.

Answer 23

True

Question 24

What type of muscle tissue is striated and involuntary?

Answer 24

Cardiac muscle

Question 25

Fill in the blank: The functional unit of a muscle fiber is called a ______.

Answer 25

Sarcomere

Question 26

What proteins are primarily responsible for muscle contraction?

Answer 26

Actin and myosin

Question 27

Multiple choice: Which muscle type is primarily responsible for posture? A: Skeletal B: Cardiac C: Smooth

Answer 27

A: Skeletal

Question 28

What is the term for the increase in muscle size due to exercise?

Answer 28

Hypertrophy

Question 29

True or False: Muscle atrophy refers to the increase in muscle size.

Answer 29

False

Question 30

What is the primary energy source for muscle contraction?

Answer 30

Adenosine triphosphate (ATP)

Question 31

What is the term for the connection between a muscle and a nerve?

Answer 31

Neuromuscular junction

Question 32

True or False: Muscle contraction is an all-or-nothing response.

Answer 32

True

Question 33

What is the role of calcium ions in muscle contraction?

Answer 33

To enable the interaction between actin and myosin

Question 34

Fill in the blank: The protein that binds calcium in muscle cells is called ______.

Answer 34

Troponin

Question 35

What is the main function of the sarcoplasmic reticulum in muscle cells?

Answer 35

To store and release calcium ions

Question 36

Multiple choice: Which type of muscle is responsible for peristalsis? A: Skeletal B: Cardiac C: Smooth

Answer 36

C: Smooth

Question 37

What is the term for the decrease in muscle mass due to inactivity?

Answer 37

Atrophy