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muscles
| Question | Answer |
|---|---|
| The time between application of a stimulus to a motor neuron and the beginning of a contracton | The lag phase |
| The time of contaction | Contraction phase |
| The time during which the muscle relaxes | Relaxation phase |
| Where the muscle remains contracted eithout relaxing | Tetany |
| The increase in number of motor units being activated | Recruitment |
| When at rest they can't stockpile ATP but they can store another high-energy molecule | Creatine phosphate |
| without oxygen | Anaerobic respiration |
| with oxygen (more efficient) | Aerobic respiration |
| The amount of oxygen needed in chemical reactions to convery lactic acid to glucose and to replenish the depleted stores of creatine phosphate stores in muscle cells | Oxygen Dept |
| results when ATP is used during muscle contraction faster than it can be produced in the muscle cells | Muscle fatigue |
| Equal distance | Isometric |
| Equal tension | isotonic |
| constant tension produced by muscles of the body for long periods of time | muscle tone |
| contract quickly and fatigue quickly | Fast-twitch fibers |
| contract slowly and are more resistant to fatigue | Slow-twitch fibers |
| the most stationary end of the muscle | origin |
| The end of the muscle undergoing the greatest movement | insertion |
| the portion of the muscle between the origin and the insertion | belly |
| muscles that work together to accomplish specific movements | synergists |
| muscles that work in opposition to one another | antagonists |
| muscle plays the major role in accomplishing the desired movement | prime mover |
| raises the eye brows | occipto frontails |
| closes eyelids | orbicularris |
| the kissing muscle | orbicularis |
| chewing muscle | buccinator |
| smiling muscle | zygomaticus |
| covers the angle of the lower jaw | masseter |
| overlines the temporal bone | temporalis |
| covers the anterolateral neck | platysma |
| muscles on each sides of the neck | sternodei domastoid |
| covers the upper part of the chest | pectoralis major |
| deep muscles found between the ribs | intercostal muscles |
| reinforces the body trunk | muscles of the abdominal girdle |
| muscles of the posterior neck and upper trunk | trapzius |
| flat muscle pair that covers the lower back | latissimus borsi |
| a prime mover of back extension | erector spinae |
| form the rounded shape of your shoulders | beltoid |
Created by:
shelbygissel
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