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vt Muscle

Muscle in animals

Muscle cells Muscle Fiber Muscle Fibris All mean the same thing
Hypertrophy Increase in sizes
Contractility Muscle contracts
Function of Muscle Movement, Stabilize support posture, Generate heat, storage
Movement Only tissue that contracts by pullin up on the bone
Stabilize support posture holding things in places/together
Generate heat producing heat energy
Storage Muscle is the only place animals store extra protein
3 types of muscle Skeletal, Smooth, Cardial
Skeletal striated strips & Voluntary
Smooht non strated & involuntary
Cardial Striated & involuntary
Voluntary muscle contracts when you want it to
Involuntary muscle contraction occurs when you dont want it to
Endomysium Fiber
Perimysium facsicle
epimysium belly muscle
wider muscle stronger
longer muscle more range of movement
how much does muscle contract? 70%
myoglobin molecule that oxygen attaches to
3 energy systems Creatine phosphate, Anaerobic C.R., Aerobic
Creatine Phosphate bonds break all at once 0-10 seconds
Anaerobic C.R. no oxygen involved 30sec- 1 mins.
aerobic oxygen use long term activies
Muscle Actions Isotonic, Isometric, Agonist/prime mover, Antagonist
Isotonic muscle becomes shorter
Isometric length(same)
Agonist/Prime mover they do the action/job
Antagonist does the oppisite the muscle extension
3 types of muscle action stabilizers, fixators, synergists > they all help the agonist do their job, they do the same action
Orgin part that moves the least
Insertion part that moves the most
Action is what occurs when the muscle contracts
2 organ systems that make things happen Nervous & Endorcrine
Nervous Neurotransmitters-specific (nerver/muscle)are fast- short duration
Endorcrine Hormones move into the blood stream stimulating production(Entire body/ blood) are slower- long term duration- nonspecific
cell body perikaryon
synapse you must have a sender, space & receiver
Electro current electrons flowing like water
Myelin insualtion of the nerves(thick coating)
Created by: annmarie07



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