Types of Muscle
Structure & Anatomy
Skeletal Muscle Contraction
Energy & ATP
Real-Life Connections
100
This muscle type is voluntary and attached to bones?
What is skeletal?
100
This is the fibrous basic functional unit of muscle
What is a sarcomere?
100
Muscles contract via this slippery filament theory
What is sliding filament theory?
100
If no ATP is available in the sarcomere this break cannot occur
What is muscle relaxation?
100
This muscle type helps move food through the intestines
What are mooth muscles?
200
This slick, stretchy muscle type is found in organs and is non-striated?
What is smooth?
200
Don't act like you don't know that the thin filaments in muscle are called this
What is actin?
200
Also abundant in bone, this mineral is released to trigger a contraction
What is calcium?
200
Repolarization ends the electrical impulse, preparing for this next climatic, near-opposite stage
What is depolarization?
200
These muscle types help you in fight/flight
What are skeletal muscles?
300
This muscle beat goes on and is only type is only found in the heart
What is cardiac muscle?
300
Not yours, but mine are named this thick filament in muscle
What is Myosin?
300
Myosin pulling actin inward is known as this engine term (strength direction)
What is the “power stroke”?
300
After death when muscles stiffen, this hard post-mortem condition occurs
What is Rigor mortis?
300
You don't need to think about this function of ANS muscles
What is involuntary function?
400
Peristalsis moves food through the digestive system from the mouth to the rear via this muscle type
What are smooth muscles?
400
Skeletal muscle's striped appearance is the
arrangement of actin and myosin creating these stipes
What are striations?
400
This muscular neurotransmitter molecule is released at the neuromuscular junction?
What is acetylcholine?
400
Muscle fatigue is caused by depletion of this form of energy
What is ATP depletion?
400
This dome-shaped muscle inferior to the lungs assists in breathing
What is the diaphragm?
500
Get with the beat to know that this muscle type contains intercalated discs 
What is cardiac muscle?
500
Zip it on these structures that mark the boundaries of a sarcomere
What are Z lines?
500
This energetic asset must bind to myosin for it to release actin?
What is ATP?
500
When muscles fatigue during intense exercise, this is the cause
What is ATP depletion / lactic acid buildup?
500
If nerve signals to a muscle are damaged, this nonproductive state occurs
What is Paralysis or loss of contraction?