22 Jun WHICH OF THE FOLLOWING IS TRUE OF ASTROCYTES?
Which of the following statements are true about resting membrane potential? Select all correct choices.
It results from K^+ ions moving out of the cell through passive diffusion.
It results from the sodium-potassium pump moving more Na^+ ions out of the cell compared to the number of K^+ ions moved into the cell.
It results from voltage-gated sodium channels remaining open for long periods of time
Which of the following is true of astrocytes? Select all correct choices. They contribute to the blood-brain barrier. They surround blood vessels in the brain. They are a specific type of glial cell.
The area within the neuron where stimuli are summed is called the: cell body. axon hillock. synapse. axon terminal. dendrite.
Match the following nerve locations or functions with the correct division of the autonomic nervous system (sympathetic or parasympathetic) by putting an €œS€ or €œP€ next to the phrase. 1. accelerate heart rate 2. decrease heart rate 3. dilate pupil 4. constrict pupil 5. stimulate activity of stomach and intestines 6. inhibit activity of stomach and intestines 7. relaxes lung bronchi 8. constricts lung bronchi 9. nerves branch from middle region of the spinal cord 10. nerves branch from the brain and the posterior region of spinal cord
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