Muscular system study guide
creatine phosphate
ATP is regenerated from ADP with the help of -
Sarcolemma
Cell membrane of a muscle cell
motor end plate
Where is acetylcholine released from during muscle contraction
fatigued
a muscle that has lost its ability to contract due to increase in lactic acid
myosin
a protein filament that contains crossbridges
muscle fiber
a single muscle cell is represented by a -
sarcoplasmic reticulum
calcium ions are stored there prior to muscular contraction
Sarcoplasm
cytoplasm of a muscle cell
aerobic respiration
has a high ATP yield
Anaeribic respiration
has a low ATP yield
oxygen debt
lactic acid accumulation results in-
Myoglobin
oxygen-carrying molecule in muscle tissue
Hemoglobin
oxygen-carrying molecule in red blood cells
fascia
the covering that separates one muscle from another
ATP
the energy that is needed for muscle contraction comes from-
tendon
the fascia that extends beyond the muscle and attaches to bone
aponeuroses
the fascia that extends beyond the muscle and attaches to other muscles
Actin
the filament that the troponin and tropomyosin complex is located on
actin
the globular protein filament
motor end plate
the location on a muscle fiber where a junction forms
Acetocholine
the neurotransmitter that functions to stimulate the muscle fiber during contraction
neuromuscular junction
the site where a nerve fiber and muscle fiber meet
Acetylcholine and calcium ions
two chemicals responsible for muscle contraction
actin and myosin
two fibers that join during muscle contraction
actin and myosin
two types of filaments
creatine phosphate
what chemical regenerates ATP
ATP
what chemical supplies energy for muscle contraction
opens the active site
what does troponin and tropomyosin complex do during muscle contraction
sarcoplasmic reticulum
where calcium is released during the muscle contraction
Filaments
within myofibrils