1. Mini Quiz 12 Muscular 2 1. A neuron can fire after it has reached a ____ stimulus. It is an all or nothing affair. 2. What is the process called when the motor neuron membrane closes off its permeability to Na and the Na-K ion pump membrane protein restores each ion to its proper side of the membrane such that the motor neuron cell is ready to fire again? 3. What is meant by motor unit? 4. What kind of muscular tension is generated when you are moving a box up and down such that you have long shortening and lengthening of muscles? 5. Most arm injections are put into which muscle? What is the location and function of the diaphragm? What is meant by RICE? What is atrophy? What is a cause?

2. Mini Quiz 12 Muscular 2 A1 1. A neuron can fire after it has reached a ____ stimulus. It is an all or nothing affair. threshold 2. What is the process called when the motor neuron membrane closes off its permeability to Na and the Na-K ion pump membrane protein restores each ion to its proper side of the membrane such that the motor neuron cell is ready to fire again? repolarization 3. What is meant by motor unit? The motor neuron and its corresponding muscle fibers 4.What kind of muscular tension is generated when you are moving a box up and down such that you have long shortening and lengthening of muscles? isontonic

3. Mini Quiz 12 Muscular 2 A2 5.Most arm injections are put into which muscle? deltoid 6.What is the location and function of the diaphragm? B/w thoracic and abdominal cavities, important to respiration 7. What is meant by RICE? Rest, Ice (20 min max), Compression, & Elevation (reduce blood flow and swelling) 8.What is atrophy? What is a cause? Breakdown of muscle tissue due to lack of use Immobility (cast, bed rest, cage)