Physio: Muscular System
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what's a fascia?
what binds muscles to bone?
layer of connective tissur that closely surrounds a skeletal muscle.
other layers of connective tissue that extend inward from the epimysium and separate the muscle tissure into small compartments.
picture the arrow diagram for muscle and recite it.
Muscle -> fascicle -> Muscle fibers (cells) -> myofibril -> myofilaments -> sacromeres
The sacromere has thick and thin filaments called...?
- thick: myosin
- thin: actin
what's the sliding filament theory?
actin "slides" over myosin filaments.
what's the sequence of a muscle twitch?
- 1. stimulation
- 2. latent period
- 3. contraction period
- 4. relaxation period.
1st class lever
effort (muscle) - fulcrum (joint) - ressistance (weight)
picture flexing the neck
2nd class lever
effort - resistance- fulcrum
picture lifting a wheelbarrow
3rd class lever
fulcrum - effort - resistance
picture lifting weight.
write the equation that explains where the energy comes from for making ATP.
C6H12O6 + 6O2 -> 6CO2+6H2O + ATP
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