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Muscles Test 2022

Total questions: 50

Worksheet time: 45mins

Name
Class
Date
1.

Thick filaments within a myofibril are:

a)

ATPase

b)

Sarcoplasmic reticulum

c)

Actin

d)

Myosin

2.

Thin filaments in a myofibril are

a)

Sarcomeres

b)

Sarcoplasm

c)

Actin

d)

Myosin

3.

What is the form of energy needed to perform a muscle contraction?

a)

ATP

b)

Oxygen

c)

Glucose

d)

Calcium

4.

What is the neurotransmitter stored in the synaptic vesicles identified as #3?

a)

Calcium Ion (Ca2+)

b)

Protein Channel

c)

Acetylcholine

d)

Synaptic Cleft

5.
The gap between a neuron and a muscle cell: (#4 in the diagram)
a)

synaptic cleft (synapse)

b)

sarcolemma

c)

vesicle

d)

Ca2+ ion

6.
The plasma membrane of a skeletal muscle cell is called the:
a)

sarcomere

b)

myofilament

c)

sarcolemma

d)

sarcoplasm

7.

The organelle that stores Acetylcholine (ACh) in the axon is identified as #4

a)

Motor Neuron

b)

Axon Terminal of Motor Neuron

c)

Sarcolemma

d)

 Synaptic Vesicle

8.
Skeletal Muscle contraction is initiated when the ________ sends a message to the muscle cell.  
a)
Muscle cell
b)

Motor Neuron

c)
Gland
d)

Cardiac Muscle

9.

Muscles are attached to bones by _____.

a)

Ligaments

b)

Tendons

c)

Cartilage

d)

Axons

10.

Calcium is going to bind to the protein____________. ​ This will cause actin ​to change shape because the ________ moves and exposes the myosin binding sites.

a)

troponin, tropomyosin

b)

myofilaments, actin binding sites

c)

acetylcholine, synaptic vesicle

d)

thiamine, guanine

11.

What is a crossbridge?

a)

Where myosin binds to actin

b)

Where the calcium crosses into the cytoplasm

c)

Where calcium binds with troponin

d)

None of the answers are correct.

12.

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

a)

Sarcoplasm

b)

Sarcolemma

c)

Myoglobin

d)

Sarcoplasmic Reticulum

13.

The order of the layers of muscle from largest to smallest is Muscle, ___________________, Myofibril, Myofilaments, actin and myosin.

a)

Sarcomere

b)

Muscle Fascicle

c)

Epimysium

d)

Myomuscle

14.

What layer of connective tissue covers the muscle fiber?

a)

endomysium

b)

epimysium

c)

perimysium

d)

myomysium

15.

What layer of tissue surrounds the entire muscle?

a)

Endomysium

b)

Epimysium

c)

Perimysium

d)

myomysium

16.

Which of the following best describes the power stoke?

a)

actin's troponin pulls on the myosin filament

b)

myosin filament heads pull on binding sites of the actin filament

c)

myosin filaments pull on the Z lines of the actin filament

d)

The A bands shrink

17.

Contractile unit of a muscle which is also the functional unit of a muscle is ...

a)

sarcomere

b)

motor unit

c)

fascicle

d)

myofibril

18.

What element is important in directly triggering contraction?

a)

Potassium

b)

Calcium

c)

Sodium

d)

Chloride

19.

Which of the following properties is NOT common to all three muscle tissues?

a)

excitablility

b)

the need for ATP

c)

elasticity

d)

Voluntary muscle control

20.

Name the highlighted muscle

a)

triceps

b)

biceps

c)

rectus femoris

d)

trapezius

21.

Name the highlighted muscle

a)

tricep

b)

bicep

c)

bicep femoris

d)

extensor longus

22.
a)
Hamstrin
b)
Quadricep
c)
Tibialis Anterior
d)
Gastrocenmius
23.

Identify the muscle

a)

gastrocnemius

b)

semitendinosis

c)

biceps femoris

d)

semimembranosis

24.

Name the highlighted muscle

a)

pectoralis major

b)

biceps

c)

triceps

d)

deltoid

25.

Name the highlighted muscle

a)

pectorals

b)

deltoid

c)

trapezius

d)

latissimus dorsi

26.
a)
Masseter
b)
Buccinator
c)
Platysma
d)
Sternoclidomastoid
27.
a)
Orbicularis Oris
b)
Orbicularis Oculi
c)
Corrugator
d)
Frontalis
28.

Which muscle is this?

a)

soleus

b)

rectus adbominus

c)

latissimus dorsi

d)

brachialis

29.

Which muscle is shown here?

a)

trapezius

b)

obicularis oris

c)

platysma

d)

trapezius

30.
a)
Orbicularis Oris
b)
Orbicularis Oculi
c)
Corrugator
d)
Occipitals
31.

which skeletal muscle is represented in the image?

a)

external obliques

b)

serratus anterior

c)

rectus abdominis

d)

pectoralis major

32.

which skeletal muscle is represented in the image?

a)

gluteus medius

b)

gluteus maximus

c)

semitendinosus

d)

external obliques

33.

which skeletal muscle is represented in the image?

a)

pectoralis major

b)

serratus anterior

c)

rectus abdominis

d)

deltoideus

34.

which skeletal muscle is represented in the image?

a)

pectoralis major

b)

serratus anterior

c)

rectus abdominis

d)

deltoideus

35.

Name the highlighted muscle.

Hint: It helps you masticate your food.

a)

Massiter

b)

Occuli

c)

Pectorals

d)

Soulius

36.
a)
Hamstring
b)
Quadriceps
c)
Bicep
d)
Satorius
37.
What type of muscle can be found in the heart?
a)
Smooth
b)
Skeletal
c)
Cardiac
38.

What is the sliding filament theory?

a)

The theory of how a muscle contracts.

b)

The theory of how people use their muscles.

c)

The theory of how organs slide around in the body

d)

The theory of how much scientists know about muscles

39.
This type of muscle tissue is found in the walls of hollow organs such as the stomach 
a)
Skeletal
b)
Cardiac
c)
Smooth
40.

This is what connects the gastrocnemius to the calcaneous bone (6)

a)

gastrocnemius

b)

calcaneous

c)

achilles tendon

d)

forman's ligament

41.
Region where a motor neuron comes in close contact with a muscle cell.
a)
neurotransmitter
b)
muscular dystrophy
c)
muscle tension
d)
neuromuscular junction
42.

True or False: Cross-bridges is when a myosin head attaches to an actin during contraction

a)

True

b)

False

43.

The Z Line provides attachment for the ...

a)

Troponin

b)

Myosin

c)

Actin

d)

ATP

44.

_________ carries the impulse deep into the myofibrils.

a)

T-Tubules

b)

Synapses

c)

Sarcoplasm

d)

Neurotransmitters

45.

What does the Myosin Heads release to relax and pull the Actin filament?

a)

ATP

b)

ADP

c)

CNS

d)

ETC

46.

What binds to the Myosin Head to cause it to detach from the Actin?

a)

ATP

b)

ADP

c)

CNS

d)

ETC

47.

The neurotransmitter stored in the axon terminal identified as #3

a)

Calcium Ion (Ca2+)

b)

Protein Channel

c)

Acetylcholine

d)

Synaptic Cleft

48.
A ______________________ attach bones to each other at joints.
a)
Ligament
b)
Bone
c)
Joint
d)
Cell
49.

What is the name of this muscle?

a)

Hamstrings

b)

Quadriceps

c)

Pectoral Muscles

d)

Gluteal Muscles

50.

What is the name of this muscle?

a)

Triceps

b)

Deltoids

c)

Hamstrings

d)

Quadriceps

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