The Muscular System Review

Poll

Before we get into the review, help us scientists gather some data!

On a scale from 1-4, how confident are you in your knowledge of the muscular system?

• 1

  this is really hard and i'll never learn it

• 2

  i know some of the words but its a ton of memorization

• 3

  I've got this, i just need practice

• 4

  Really I should be teaching the class, Ms. Elsey and Dr. Portesy have nothing on me

Categorize

Options (11)

Shivering

Raising hairs / goosebumps

Blood pushed out of the heart

Digestion

Blood flowing through arteries

Lymph flowing through lymphatic vessels

Jumping, running, rollerblading with your dog

Playing soccer

Scrolling on TikTok

Getting hot during a workout

Cardiac muscle contracting rhythmically

Match each scenario with the functions of the muscular system

Move the body

Regulate body temperature

Cause the heartbeat

Move food/fluids

Labelling

Match the types of muscle with their location in the image.

Drag labels to their correct position on the image

cardiac muscle

smooth muscle

skeletal muscle

Match

Match the definitions with each muscle tissue type

• long striated cells with multiple nuclei

• spindle-shaped mononucleate fibers, not striated

• striated, branching fibers that form a network to all contract at once

skeletal muscle

smooth muscle

cardiac muscle

• skeletal muscle

• smooth muscle

• cardiac muscle

Match

Match the images with the definitions of each muscle tissue

cardiac muscle

skeletal muscle

smooth muscle

• cardiac muscle

• skeletal muscle

• smooth muscle

Labelling

Label the structure of a muscle!

(Hint: #2, #3, and #6 are types of connective tissue)

Drag labels to their correct position on the image

endomysium

muscle

epimysium

muscle fiber

tendon

perimysium

bone

fascicle

blood vessel

Categorize

Options (12)

fascicle

muscle fiber

tendon

blood

epimysium

endomysium

perimysium

muscle

skeletal

smooth

cardiac

ligament

Organize these options into the right categories:

muscle tissue

connective tissue

Labelling

Match the steps of the sliding filament theory of muscle contraction with the corresponding pictures.

Drag labels to their correct position on the image

Ca+2 enters, revealing binding sites

ADP+P detaches, myosin pulls on actin

Myosin heads attach to binding sites

ATP breaks down, stretching myosin out

ATP binds, detaching myosin

Reorder

Put the steps of the sliding filament model in order:

• Calcium ions are released from the sarcoplasmic reticulum, causing tropomyosin to move troponin from the binding sites

• Myosin heads on the thick filament attach to the binding sites on the thin filament, forming myosin cross-bridges

• Low-energy ADP+P is released from myosin heads, causing the myosin heads to spring back into place, sliding the thin filament over

• A high-energy chemical, ATP binds to the exposed space on myosin heads, causing the heads to detach from actin

• ATP breaks down into ADP+P, causing the myosin heads to shoot forward. This prepares the muscle for another contraction.

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Reorder

Put the images showing the sliding filament model of muscle contraction in order:

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Open Ended

What would happen to someones' muscles if they were unable to release calcium from the sarcoplasmic reticulum?

Labelling

Label the structures in myoneural junction.

Drag labels to their correct position on the image

neuromuscular junction

synaptic vesicle

motor end plate

acetylcholine

axon

axon terminal

Ach receptor

Reorder

Put the steps in a myoneural/neuromuscular junction in order:

• An action potential comes from the neuron, along the axon

• The synaptic vesicles in the axon terminal are triggered to release

• Neurotransmitters called acetylcholine travel across the synaptic gap

• Acetylcholine binds to receptors, causing Na+2 ions to diffuse into the cell

• Na+2 ions cause the sarcoplasmic reticulum to release Ca+2 ions

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Open Ended

In 3 sentences, describe the purpose of a myoneural junction.

Labelling

Label the muscles that would be used during flexion.

Drag labels to their correct position on the image

antagonist

agonist

origin

synergist

insertion

Multiple Choice

What is this movement?

• rotation

• pronation

• circumduction

• extension

Multiple Choice

Pointing the toes superiorly is called:

• inversion

• plantar flexion

• superior rotation

• dorsiflexion

Multiple Choice

What is this movement calles?

• inversion

• eversion

• dorsiflexion

• plantar flexion

Multiple Choice

What muscular movement is NOT seen when you are chewing?

• protraction

• elevation

• excursion

• inversion

Multiple Choice

In the image, popular actress Betty White is doing a common pose called a "dab". What muscles would Mrs. White be using for this action, and what movements are shown? ​

• She is using her biceps brachii for flexion of her left elbow and her triceps brachii for extension of her right elbow

• She is using her quadriceps for adduction of her left arm and her biceps femoris for extension of her right arm

• She is using her rectus abdominus for circumduction of her left shoulder and her deltoid for abduction of her right houlder

• She is using her soleus for inversion of her left arm and her masseter for excursion of her right arm

Draw

Illustrate two antagonistic muscle movements that involve the foot.

Labelling

Label the major muscles of the body.

Drag labels to their correct position on the image

gluteals

deltoids

quadriceps

pectoralis major

latissimus dorsi

biceps brachii

rectus abdominus

gastrocnemius

frontalis

Labelling

Label the major muscles of the face.

Drag labels to their correct position on the image

temporalis

frontalis

orbicularis oculi

orbicularis oris

zygomaticus

Poll

Now that you've finished the review, help us scientists gather some final data!

On a scale from 1-4, how confident are you NOW in your knowledge of the muscular system?

• 1

  this is still really hard and i'll never learn it :P

• 2

  i know some of the words but its a ton of memorization...maybe I'll study before the test?

• 3

  I've got this, I crushed those practice questions, obviously!

• 4

  I think for sure I should be teaching the class.

  Ms. Elsey and Dr. Portesy have nothing on me!