Cross Bridge Cycling - Process
What number of subunits does troponin have?
What is three?
Will a larger or smaller diameter muscle fiber produce greater force?
What is a larger diameter muscle fiber?
Through what process is ACh released into the synaptic cleft?
What is exocytosis?
How many action potentials are involved in a muscle twitch?
What is one?
What are the two categories of muscle contractions?
What is isometric and isotonic?
Where does the myosin head bind to form a cross bridge?
What is the active site on actin?
What is the optimal amount of overlap for tension production? (full, partial, barely any)
What is partial overlap?
What enzyme breaks down ACh in the synaptic cleft?
What is acetylcholinesterase (ACh-E)?
How many muscle fibers are involved in a muscle twitch?
What is one?
How much movement occurs in an isometric contraction?
What is no movement?
Through what process is ATP converted into ADP + a phosphorus group (P)?
What is the maximum tension produced in unfused tetanus?
What is ~80%?
What type of wave triggers muscle relaxation?
What is repolarization?
In which phase of a muscle twitch is the wave of depolarization produced?
What is the latent/lag phase?
What type of joint movement occurs during a concentric contraction?
What is the correct term for the action of myosin pulling actin towards the M-line?
What is a power stroke?
To cause treppe, how much does the muscle fiber need to relax between stimuli? (fully, partially, not at all)
What is fully relax?
What is the sarcoplasmic reticulum?
In which phase of a muscle twitch does cross-bridge cycling occur?
What is the contraction phase?
What is a motor unit?
What is one motor neuron and all muscle fibers it innervates?
Rigor mortis occurs because what molecule is not being produced?
What is ATP?
What is the maximum amount of tension achieved in complete tetanus?
What is 100%?
Through what type of channels does potassium leave the cell during muscle relaxation?
What are voltage gated ion channels?
What is the relaxation phase?
What type of joint movement occurs during an eccentric contraction?
What is extension?