Muscle Contraction
The protein that makes up what we normally call the thin filament.
What is actin?
A muscle twitch is comprised of three ____.
What is a phase (or period)?
This type of muscle tissue is found only in your heart.
What is cardiac muscle tissue?
All skeletal muscles in the human body operate through this simple machine.
What is a lever?
This neurotransmitter is responsible for opening up ligand-gated sodium channels.
What is acetylcholine?
This process increases the amount of force a muscle produces by recruiting more motor units.
What is motor unit summation?
This type of muscle tissue is the only type one can voluntarily control.
What is skeletal muscle tissue?
This is the distance between the load and the fulcrum.
What is the load arm?
This positively charged ion binds onto troponin during muscle contraction.
What is calcium?
This process increases muscle force by quickly combining more muscle twitches.
What is temporal summation?
This type of muscle tissue has no striations at all.
What is smooth muscle tissue?
This is the distance between the effort and the fulcrum.
What is the effort arm?
This mechanic drives the z-lines of the sarcomere closer together, causing the muscle to contract.
What is the power stroke?
The major characteristic of this disease is the inability to relax your muscles.
What is tetanus?
This characteristic of protein determines it's function.
What is the shape?
We classify muscles based on this action.
What is a specific movement?
The binding and use of this molecule allows the myosin head to perform its role in muscle contraction.
What is ATP?
The duration of a muscle twitch is measured in this unit of time.
What is a millisecond?
This model is used to describe the relationship between how proteins can interact.
What is the lock-and-key model?
We use this term to define the ratio between the effort and load arms.
What is efficiency?