12/16/13
StudyBlue Flashcard Printing of Muscular System
Which type of muscle tissue is
involuntary and striated?
cardiac
What type of muscle tissue is
voluntary and striated?
skeletal
Which type of muscle tissue is
involuntary and non-striated?
smooth
List the three layers of connective tissue in the
muscle in the correct order from outermost to
innermost layer
epimysium,
perimysium,
endomysium
A muscle cell is also
known as a
fiber
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StudyBlue Flashcard Printing of Muscular System
A __ is where a motor neuron
and a muscle fiber come
together
neuromuscular
junction
A nerve impulse triggers ____
to be released from the
synaptic vesicle.
acetylcholine
When the neurotransmitter is triggered, it
attaches to receptors in the sarcolemma of the
muscle cell. This causes the sarcoplasmic
reticulum to become
more permeable to
calcium ions
Bundles of muscle
cells are called
fascicles
Which two organelles are
usually found in multiples, due
to their importance in the
muscle cell?
mitochondria, nucleus
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StudyBlue Flashcard Printing of Muscular System
Muscle cells require an extensive amount of
energy and therefore have a higher number of
__ than most other cells.
mitochondria
The muscle fiber
membrane is called
the
sarcolemma
The dark a bands are
made of
myosin
What enzyme breaks
down acetylcholine?
cholinesterase
The theory of how muscles
contract is the
sliding filament theory
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StudyBlue Flashcard Printing of Muscular System
The release of Calcium ions
into the sarcoplasm triggers
crossbridges to be made
between muscle fibers
When depolarization
occurs
Sodium ions diffuse
into the cell
When repolarization
occurs
Potassium ions diffuse
out of the cell
The original location of sodium
and potassium ions are reset
using
sodium-potassium
pumps
vesicle
Identify 3
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StudyBlue Flashcard Printing of Muscular System
sarcomere
the top box on the right
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Identify
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