The most common type of neuron is an a. Afferent neuron b. Interneuron c. Effere

Question

The most common type of neuron is an a. Afferent neuron b. Interneuron c. Efferent neuron Movement of a vesicle of materials from the nerve terminals of a neuron to the soma of the neuron is called a. Backwards vesicular traffic pattern b. Forwards vesicular traffic pattern c. Anterograde transport d. Retrograde transport e. Vesicles only go from soma to nerve terminals, never in the other direction The glial cells which from the blood brain barrier are called a. Astrocytes b. Schwann cells c. Oligodendrocytes d. Ependymal cells e. Microglia Capacitance of the membrane a. Is the driving force behind current flow across the membrane at rest. b. Is the resistance to current flow across the membrane at rest. c. Is the collection of opposite charges on either side of the cell membrane due to RMP. d. Is established by the difference in protein concentration in cytosol and ECF. The ion in highest concentration outside the cell is a. Na b. K c. Cl d. Ca e. Mg At rest the cell is most permeable to a. Na b. K d. Ca e. Mg

Explanation / Answer

22. B interneurons

23. D.retrograde transport

24.a. Astrocytes

25.b. Is the resistance to the current flow across the membrane

26.a. Na

Sodium ion is found at 145 mM concentration outside the cell

27.b.K

Cells are most permeable to potassium ions at rest

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