This is a Multipolar Neuron, please use ARROWS to label the following: Soma nucleus glial cells dendrites axon

Which of the following occurs when light activates a photoreceptor? Choose all that apply. Glutamate will be released The cell will be depolarized Phosphodiesterase is inactivated [Sodium ions channels will be closed CGMP is present

Myelin sheaths function to electrically insulate neurons. Compare and contrast the myelination in the CNS and PNS (hint: include the cell types and their specific properties).

Which of the following cells is NOT an example of glia? The cells in the central nervous system that make myelin Astrocytes Schwann cells Motor neurons Oligodendrocytes

Choose all that apply [Na*] + [K'] | + + + + This diagram is a drawing of normal conditions that occur in a neuron's axon (not all details are included). This stage that a living neuron would be in, would show that no positive ions are inside the cell current is traveling down the axon the cell will be at rest once the Na ions enter the cell the cell is at rest Na ions are predominantly outside the cel

What two features characterize a Schwann cell, but not an oligodendrocyte?     open cytoplasmic channels, present in CNS     open cytoplasmic channels, single axon myelination     no cytoplasmic channels, present in PNS     no nuclei, multiple axon myelination

All of the following are true for neurons EXCEPT neurons must produce many proteins neurons are electrically excitable cells neurons have a relatively high consumption of oxygen neurons undergo mitosis

please answer the question underlined

Classify the given items with the appropriate group. Neuron is hyperpolarized Occurs when voltage-gated sodium channels have returned to resting state No amount of stimulus will initiate a second action potential Ensures that the action potential moves down the axon in only one direction Voltage-gated sodium channels are opened then closed in the inactivated state Occurs about 1 millisecond after an action potential Relative Refractory Period Absolute Refractive Period

70. The picture here of a cell with extensions reaching to capillaries and a neuron is a(n) ___________________