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Savanna Cummings
Physiology Weeks 7-13
| Term | Definition |
|---|---|
| A synapse can only occur between an axon and: a dendrite, another axon, a cell body, any of the above | any of the above |
| When a neuron is resting, the inner surface of its plasma membrane is slightly positive compared with its outer surface. True or False | False |
| The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? | Almost 300 times faster |
| Impulses sent over which of the following tracts could result in voluntary movement, especially of the hands, fingers, feet, and toes of the opposite side? | Lateral corticospinal |
| Fluid that is clear, watery and contains protein molecules, salts, and other substances is called | intercellular fluid |
| During inspiration, the expansion of the lungs causes: | a decrease in alveolar pressure |
| External respiration can be defined as: Exchange of gasses between lung and blood capillaries in the lung, pulmonary ventilation, exchange of gasses between blood capillaries and tissue cells, both A and B | both A and B |
| When classified according to the kid of chemical reactions catalyzed, digestive enzymes are referred to as ________ enzymes. | hydrolyzing |
| Norepinephrine is liberated at: | most sympathetic postgaglionic nerve endings |
| Starling's law of the heart states that, within limits, the longer, or more stretched, the heart fibers are at the beginning of the contraction, the | stronger the contraction |
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Scummings03
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