Overview
Number of Skeletal Muscles in the human body
650
Attaches Muscle to bone
Tendon
A bundle of muscle fibers
Fascicle
A smooth, sustained contraction
Fused Tetanus
Thick protein myofilaments in myofibril
Myosin
The smooth, connective tissue that surrounds an entire muscle
Epimysium
Connective tissue that surrounds an individual muscle cell
Endomysium
Muscle end attached to more movable bone
Insertion
This is what causes muscle fatigue
Lack of oxygen (oxygen debt)
Thin protein myofilaments in myofibril
Actin
Property of muscles that enable them to receive and respond to stimulus
Irritability
Voluntary muscle that attaches to bones
Skeletal Muscles
Double up
The gap between the motor neuron and the muscle fiber it supplies
Crossbridge
Breaking down of muscles as they are not in use
Atrophy
Double up
The electrical current generated by the change in charge across the muscle cell membrane
Action Potential
Required to expose myosin binding sites on actin
Calcium ions
Involuntary muscle with no striations
Smooth Muscle
What can also be called "energy" for the muscle cells
ATP
soft and flabby muscles
Flaccid
One motor neuron and all the skeletal muscle fibers it stimulates
Motor Unit
Substance for temporarily changing the permeability of muscle cell membrane to ions
Acetylcholine
Branching chains of cells with intercalated discs
Cardiac Muscles
The contractile unit of the muscle
Sarcomere
result of lactic acid building up
Muscle soreness
Type of muscle contraction that causes movement
Isotonic