Muscles Flashcards
scientific study of muscle
myology
muscle that a person can control
voluntary muscle
sometimes called muscle fibers
myocytes
inhibits actin myosin interaction
troponin
is an aquatic invertebrate animal of a phylum
coelenterate
types of muscle tissues
smooth, skeletal and cardiac
nonstriated and involuntary
smooth muscle
stiated and voluntary
skeletal muscle
striated and involuntary
cardiac muscle
united forces generated by all the cells
skeletal muscle tissue
it maintains the intracellular millieu
sarcolemma
constitutes the main intracellular calcium store
sarcoplastic reticulum
the basic contractile unit of a myocyte
sarcomere
densely packed throughout muscle cells, to provide a constant flow of ATP
mitochondria
invaginations of the plasma membrane
transverse tubules
discrete regions within the muscle cell, they store calcium
terminal cisternae
structure formed by a T tubule
triad
boundary between sarcomeres
z discs
overlap of thick and thin filaments
anistropic band
thin filaments only
isotropic band
bisects each I band
z line
proteins anchor the adjacent thick filaments
m line
thick filaments only
h zone
muscle contraction occurs when the myosin and actin filaments slide across each other
sliding filament theory of contraction
operates independently
multi unit smooth muscle
also called syncytial and visceral smooth muscles / operates together as a single unit
unitary smooth muscle
controls accomodation by altering the shape of lens
ciliary muscle
forms the thick myocardium of the heart wall
cardiac muscle tissues
interconnect cardiac muscle cells
intercalated discs
anchors actin filament
vertical plane
contains gap junctions
horizontal plane
a thick strand of tissue/attaches muscle to bone
tendon