Vertebrae Physiology Test#1

Vertebrae Physiology Test#1 - Vertebrae Physiology Test #1...

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Vertebrae Physiology Test #1 Review Resting Potential 1. Resting Potential – the concentration force trying to move K+ outside is equal to the electrical force trying to move K+ inside. 2. Some ions can pass across a membrane with ease and some can’t. This establishes a membrane potential because there is an unequal concentration of ions outside and inside of the cell. 3. The semi-permeable membrane is mainly permeable to K+ ions. Therefore, there is going to be more K+ inside the cell than outside the cell. However, there are a few channels on the membrane that are permeable to Na+. The Na+/K+ pump throws 3 Na+ out and 2 K+ in. This maintains the concentration gradient. Keeps the inner cell negative and outer cell positive. 4. Voltage – potential difference across the resistor Current – flow of electrons through a circuit Capacitance – the ratio between the amount of charge stored on the plates of any one given capacitor and the voltage between the plates. Conductance – the measure of the ease with which current flows through a resistor. 5. A capacitator slows down the current in order for the 6. Muscle cells, glands, other nerve cells 7. Axon vs. Dendrite a. Axon i. Function: conduct the electrical impulses by which nerve cells signal from the soma to the particular target cell with which the end of the axon makes contact. ii. Morphology 1. Axon terminals- branches that dividing from the axon that closely come in contact with other cells. 2.
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This note was uploaded on 09/14/2009 for the course BIO 365R taught by Professor Draper during the Spring '08 term at University of Texas.

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Vertebrae Physiology Test#1 - Vertebrae Physiology Test #1...

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