Anatomy Muscular System

Anatomy & Physiology: Muscular System Review

by Ashley Weems

Multiple Choice

All of the following are types of muscles EXCEPT:

• Isometric

• Smooth

• Cardiac

• Skeletal

Multiple Choice

All of the following are characteristics of muscles EXCEPT:

• Muscle cells are elongated and known as fibers

• Muscle contraction is caused by microfilaments within the muscle fibers

• All muscles share common terminology, such as myo, mys, and or sarco.

• Muscles are responsible for only the voluntary movements of the body. Neurons control involuntary function.

Multiple Choice

True or False: Epimysium is found surrounding the entire muscle.

• True

• False

Multiple Choice

True or False: Endomysium is the protective covering (fascia) that surrounds a fascicle

• True

• False

Multiple Choice

True or False: Tendons and Ligaments are the same thing.

• True

• False

​Copy the links below and paste them in your browser to review Muscle Micro-anatomy & Physiology

https://www.youtube.com/watch?v=SCznFaTwTPE​

​&

​https://www.youtube.com/watch?v=nTZnBdeIb5c

Poll

When actin and myosin filaments slide past one another in the sliding filament theory, do the filaments shorten?

• Myosin shortens, but actin stays the same length

• Actin shortens but myosin stays the same length

• Both microfilaments shorten as the muscle fiber contracts

• Neither microfilament shortens. Instead, the sarcomere shortens as the actin & myosin slide past each other.

Copy & paste the link below into your browser to review how neurons stimulate muscle contraction.​

https://www.youtube.com/watch?v=qTt_2oPI2kk​

Open Ended

Explain in your own words how the recruitment of motor neurons controls how strong a muscular response is.

Multiple Choice

Where does the energy for muscle contraction come normally from?

• ATP produced by cellular respiration

• ATP produced by glycolysis

• ATP produced by anaerobic respiration

• ATP from the direct phosphorylation of enzymes in the Krebs Cycle.

Open Ended

Explain in 3 sentences or less the difference between Isotonic and Isometric muscle contractions. (Use your own words!)

Fill in the Blanks

is the attachment point to the moveable bone.

Fill in the Blanks

is the attachment point to the immovable bone.

Open Ended

Describe the exercise movements of a complete "Jumping Jack" using the correct anatomical terms for muscle movement.

Open Ended

Which Muscular System disease/disorder do you plan to study and discuss for your disease diary?