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Muscular System

Total questions: 49

Worksheet time: 31mins

Name
Class
Date
1.

Which of these is NOT a function of the muscular system?

a)

Allows for sensation

b)

Creates body movement

c)

Protects internal organs

d)

Heat production

e)

Maintain body posture and shape

2.

Match the following

a)

Tendon

1.

attaches a muscle to a bone

b)

Ligament

2.

attaches a bone to another bone

c)

Fascia

3.

creates a membrane-like covering for muscles

3.

Match the following

a)

Origin

1.

the point of a muscle which attaches to a stationary bone

b)

Insertion

2.

the point of a muscle which attaches to a bone that performs the movement

c)

Belly

3.

the largest part of the muscle containing the muscle cells

4.

Think about the action of the triceps. Then label the origin, belly, and insertion.

a)origin
b)insertion
c)belly
1
2
3
1)
2)
3)
5.

Match the following

a)

Skeletal

1.

voluntary, striated

b)

Visceral

2.

involuntary, no striations

c)

Cardiac

3.

involuntary, striated, intercalated disks

6.
When a muscle contracts, it _______
a)
gets longer
b)
gets shorter
c)
gets thinner
d)
grows hair
7.
Which types of muscle tissue are voluntary?
a)
Cardiac
b)
Skeletal
c)
Smooth
d)
Cardiac and Smooth
8.
Which muscles are involuntary?
a)
skeletal
b)
cardiac
c)
smooth
d)
smooth and cardiac
9.

given the following events:

1.acetycholine broken down

2.acetylcholine moves across the synaptic cleft

3.action potential reaches the terminal branch (presynaptic terminal)

4.acetylcholine combines with a receptor molecule on a skeletal muscle (postsynaptic membrane)

5.action potential produced in skeletal muscle cell


Choose the arrangement that lists the events in the order the occur at a neuromuscular injunction

a)

2,3,4,1,5

b)

3,2,4,5,1

c)

3,4,2,1,3

d)

4,5,2,1,3

10.
Which of the following describes the sarcomere? 
a)
The basic unit of muscle’s cross-striated myofibril
b)
. A protein band which defines the boundary between one sarcomere 
c)
 Various muscle proteins 
d)
Contains the protein, actin
11.

The nerve releases a chemical called a

a)

neurotransmitter

b)

neuron

c)

myofibril

d)

cell

12.

What is the name off label 1?

a)

Myofubrill

b)

Nucleus

c)

Nucleolus

d)

Sarcolemma

13.

What is the name off label 2?

a)

Sacrolemma

b)

Nucleus

c)

Mitochondrion

d)

Sacroplasm

14.

What is the name off label 3?

a)

Sacrolemma

b)

Mitochondrion

c)

Myofibril

d)

Sacroplasm

15.

Myofibrils are made of Actin which are

a)

thin filaments

b)

thick filaments

16.

Myofibrils are made of Myosin which are

a)

thin filaments

b)

thick filaments

17.
The part of the sarcomere that A (green) refers to is the?
a)
Z Line
b)
M Line
c)
H Line
d)
A Line
18.
The part of the sarcomere that C (Blue) refers to is the?
a)
Actin
b)
Myosin
c)
Troponin
d)
Tropomyosin
19.
The part of the sarcomere that D (Red) refers to is the?
a)
Actin
b)
Myosin
c)
Troponin
d)
Tropomyosin
20.
What zone/band of the sarcomere is represented by yellow.
a)
I Zone/Band
b)
A Zone/Band
c)
H Zone/Band
d)
M Zone/Band
21.
What state is the sarcomere in #1
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
22.
What state is the sarcomere in #2
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
23.
What state is the sarcomere in #3
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
24.
A sarcomere is
a)
A protein filament or fiber
b)
The basic contractile unit of muscle contraction
c)
An organelle
d)
An organ
25.
This type of muscle tissue is found in the walls of hollow organs such as the stomach 
a)
Skeletal
b)
Cardiac
c)
Smooth
26.

This type of muscle cell is striated and voluntary.

a)

smooth

b)

cardiac

c)

skeletal

d)

connective

27.

What type of muscle is this?

a)

Skeletal

b)

Cardiac

c)

Smooth

28.

Which type of muscle is this?

a)

Skeletal

b)

Cardiac

c)

Smooth

29.

The neurotransmitter stored in the axon terminal identified as #3

a)

Calcium Ion (Ca2+)

b)

Protein Channel

c)

Acetylcholine

d)

Synaptic Cleft

30.

What is the structure that stores the Calcium in the muscle cell.

a)

Sarcoplasm

b)

Sarcolemma

c)

Myoglobin

d)

Sarcoplasmic Reticulum

31.

Which label is pointing to the epimysium?

a)

A

b)

B

c)

C

d)

D

32.

Which label is pointing to the perimysium?

a)

A

b)

B

c)

C

d)

D

33.

Which label is pointing to the endomysium?

a)

A

b)

B

c)

C

d)

D

34.

Which connective tissue connects muscle to bone?

a)

Ligament

b)

Tendon

35.

Which muscle connective tissue can blend into a tendon?

a)

Epimysium

b)

Endomysium

c)

Perimysium

36.

What is labeled "4" (the blue/purple part) in the diagram?

a)

sarcolemma

b)

sarcoplasmic reticulum

c)

transverse tubules

d)

myofibril

37.

What is the length between Z-lines of an actin molecule called?

a)

fascicle

b)

sarcomere

c)

myosin binding site

d)

sarcoplasmic length

38.

What is another name #2? (Hint: It is a muscle layer)

a)

Skeletal muscle

b)

Epimysium

c)

Perimysium

d)

Endomysium

39.

What is another name #5? (Hint: It is a muscle layer)

a)

Skeletal muscle

b)

Epimysium

c)

Perimysium

d)

Endomysium

40.

What is another name #6? (Hint: It is a muscle layer)

a)

Skeletal muscle

b)

Epimysium

c)

Perimysium

d)

Endomysium

41.

What is the name of #3?

a)

Skeletal muscle

b)

Myofibril

c)

Myofiber

d)

Tendon

42.

What is another name for a muscle cell?

a)

Sarcomere

b)

Sarcolemma

c)

Myofibril

d)

Myofiber

43.

A patient's arm has been in a cast and the muscle is smaller from disuse, this is known as?

a)

hypertrophy

b)

muscle tone

c)

atrophy

d)

strain

44.

Thick filaments within a myofibril are:

a)

ATPase

b)

Sarcoplasmic reticulum

c)

Actin

d)

Myosin

45.

The energy needed to perform a muscle contraction comes directly from

a)

ATP

b)

Oxygen

c)

Glucose

d)

Calcium

46.

The neurotransmitter stored in the axon terminal identified as #3

a)

Calcium Ion (Ca2+)

b)

Protein Channel

c)

Acetylcholine

d)

Synaptic Cleft

47.
The plasma membrane of a skeletal muscle cell is called the:
a)
sarcomere
b)
myofilament
c)
sarcolemma
d)
sarcoplasm
48.

The neuron that transmits an impulse from the central nervous system to the muscle is called a:

a)

sensory neuron

b)

motor neuron

49.
The organelle that stores ACh in the axon is identified as #4
a)
Motor Neuron
b)
Axon Terminal of Motor Neuron
c)
Sarcolemma
d)
 Vesicle

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