the myasthenia graves, ACh fails to bind to the muscle sarcolemma, this leads to
~ liquid gated channels not being able to open
how many ATP are generated through cellular respiration
~ 36
What generates heat when a muscle contract
~ the production of new ATP needed for muscle contraction
Mya...
Which term describes the sheet of thick connective tissue that surrounds the entirety
of a skeletal muscle?
✓✓~ epimysium
Which term is used for thread like organelles composed of actin and myosin
filaments found in muscle cells
✓✓~ myofibrils
two contractile proteins found in skeletal muscle
✓✓~ actin and myosin
which occurs as a muscle fiber contracts
✓✓~ i band gets smaller, z line distance decreases, and h-zone becomes non existant
which is the term used to describe the connection between a muscle fiber and the
neuron that innervates it
, ✓✓~ neuromuscular junction
which neurotransmitters is released by somatic motor neruons where they synapse
with skeletal muscle fibers
✓✓~ acetylcholine
which ion is released into cytosol of muscle fibers in response to an action potental
and plays key role in skeletal muscle contraction
✓✓~ calcium
starting from the point at which ATP binds to the heads of the myosin filaments,
arrange the following in correct sequence to describe muscle contraction cycle:
power stroke, crossbridge detachment, atp hydrolysis, crossbridge formation
✓✓~ ATP Hydrolysis, crossbridge formation, power stroke, cross bridge detachment
describe a motor unit
✓✓~ a somatic motor neuron and all the muscle fibers it innervates
what is the term used for a sustained contraction caused by stimulation of a muscle
over 90x per second, where no individual twitch contraction can be distinguished
from another?
✓✓~ complete tetanus
which stage does twitch contraction does crossbridge formation occur
, ✓✓~ contraction
how many molecules of ATP are produced by the catabolism of one creatine
phosphate molecule
✓✓~ 1
the shortening of a muscle while maintaining constant tension within that muscle
✓✓~ concentric isotonic contraction
brevis
✓✓~ short
which muscle is multipennate? Deltoid, pronator quadratus, rectus femoris
✓✓~ Deltoid
straight muscle fits in what category
✓✓~ parallel
Which is not a function of muscle tissue? Produces body movement, stabilizes body
position, generates heat, fights infection
✓✓~ fights off infection
what are the types of striated muscle
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