Skeletal Muscles
It causes the cross bridge to detach
ATP
Depolarization
Na+ entering the cell
This movement is seen in the smooth muscles of the intestines
What is peristalsis?
This enzyme breaks down Acetylcholine
What is acetylcholinesterase?
A neurotransmitter released at motor end plates by the axon terminals
What is acetylcholine?
Functions in calcium storage
Sarcoplasmic reticulum
No ATP is available to release attached actin and myosin molecules causes this condition
Rigor mortis
Activates myosin (light chain) kinase
What is Calmodulin?
Causes recruitment of muscle fibers
The stimulus strength increases
What is skeletal muscle
It holds thick filaments in place; helps recoil after stretch and resists excessive stretching
Titan
Relay the action potential to the sarcolemma
What is the T tubule?
There no relaxation at all between stimuli, and we reach maximal muscle contraction,
What is fused tetanus?
The membrane directly underneath the endomysium
What is the sarcolemma?
This organ starts skeletal muscle contraction
What is the brain?
It Links the thin filaments to proteins of sarcolemma
Dystrophin
K+ exiting the cell
Repolarization
It catalyzes the transfer of phosphate to myosin, in smooth muscle contraction
Myosin (light chain) kinase
The muscle is shortened because muscle tension increases and exceeds load
What is an isotonic contraction?
It activates the synaptic vesicles in axon terminals causing release of the neurotransmitter
What is calcium?
Serves as a contraction inhibitor by blocking the actin binding sites on the sarcoplasmic reticulum
Tropomyosin
Events of excitation-contraction coupling; no muscle tension
What is the latent period?
When the load exceeds the strength of the muscle contraction
What is an Isometric contraction?
The structure in skeletal muscles contains glycosomes for glycogen storage, and myoglobin for O2 storage
What is the Sarcoplasm?
Na channels open, Na channels close, K channels open, K channels close
What are the steps of an action potential?