muscular system
the energy that is needed for muscle contraction to occur comes from
ATP
what chemical supplies the energy for muscle contraction
ATP
the neurotransmitter that functions to stimulate the muscle fiber during contraction is
acetylcholine
the globular protein filament is
actin
which filament is the tropinin and tropomysin complex located on
actin
two types of filaments are
actin and myosin
the fascia that extends beyond the muscle and attaches to another muscle is
aponeuroses
what signals the active site on the actin to close during a muscle relaxation
calcium gets pumped into the sarcoplasmic reticulum
what are the two chemicals responsible for muscle contraction
calcium ions and acetylcholine
involuntary, banded appearance, contracts as one unit
cardiac
ATP is regenerated from ADP with help of
creatine phosphate
what chemical regenerates ATP
creatine phosphate
what will occur within a muscle cell during oxygen debt
decreased ATP, increases lactic acid, decreased oxygen, increased carbon dioxide
the covering that separates one muscle from another
epimysium/fascia
outer most to inner most
fascia, epimysium, perimysium, endomysium, sarcolemma
a muscle that has lost its ability to contract due to an increase in lactic acidosis is
fatigued
within myofibrils are
filaments
where is acetylcholine released from during the muscle contraction
from the nerve fiber containing vesicles that goes to the motor plate
the oxygen carrying molecule in blood is
hemoglobin
aerobic respiration has a ___ ATP yield
high
anaerobic respiration has a ___ ATP yield
low
the location on a muscle fiber where a junction forms is the
motor end plate
a single muscle cell is represented by
muscle fiber
largest to smallest
muscle, fascicle, muscle fiber, myofibril, filament
the oxygen carrying molecule is muscle tissue is
myoglobin
the protein filament that contains crossbridges is
myosin
what are two fibers that join during muscle contraction
myosin and actin
the site where a nerve fiber and muscle fiber meet is called
neuromuscular junction
what does the troop in and tropomysin complex do during muscle contraction
opens the active site
lactic acid accumulation results in
oxygen debt
the cell membrane of a muscle cell is known as the
sarcolemma
the cytoplasm of a muscle cell is called the
sarcoplasm
calcium ions are stored in the ____ prior to muscular contraction
sarcoplasmic reticulum
where is calcium released from during the muscle contraction
sarcoplasmic reticulum
banded appearance, voluntary, moves bones, referred to as the muscular system
skeletal
involuntary, lines hollow internal organs
smooth
the fascia that extends beyond the muscle and attaches to the bone is a
tendon
how does nerve fiber stimulation stop during muscle relaxation
the cholinestrease decomposes the acetylcholine
