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vt Muscle
Muscle in animals
| Question | Answer |
|---|---|
| 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) |