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Muscular System - Coggle Diagram
Muscular System
cardiac muscles
intercalated discs
complex intercellular junctions
desmosomes and gap junctions
force contraction cell-to-cell
syncytium
all or none manner
cell composer
single nucleus
filaments of actin and myosin
SR
tranverse tubules
Ca+ ions
many mitochondira
only in heart
smooth muscle
multiunit muscle
stimulated by neurons/hormones
irises of eyes
walls of large blood vessels
visceral muscle
peristalsis
alternate contractions and relaxations
intestines
ureters
one unit
contraction
acteylcholine
norepinephrine
calmodulin
skeletal muscles
muscle fibers
slow
red
less susceptible to faitgue
fast
white
more susceptible to fatigue
purposes
facial expressions
posture
locomotion
voluntary movements
fascia
dense connective tissue
surrounds muscles
forms tendons