BIO 181 (Capco ASU) Final Exam questions well answered and verified

BIO 181 (Capco ASU) Final Exam questions well answered and verified T/F Excitatory synapses cause hyperpolarization of post-synaptic cells. - Correct Answers False The resting potential of neurons is: - Correct Answers -60 mv (The answer is not on this list.) T/F The autonomic nervous system contains the sympathetic and the parasympathetic nervous system. - Correct Answers True In the motor end plate, the event that is the immediate trigger for exocytosis is: - Correct Answers Calcium Ions Draw an action potential in the axon of a neuron and indicate which ions flow into the neuron and out of the neuron as the action potential passes at the point where the electrodes are in the cell. Be sure to assign on the Y-axis the mV of each of these areas. This should be as described in my lectures. - Correct Answers The action potential is: - Correct Answers A result of the movement of ions. T/F The cell body refers to the part of the neurons that begin at the dendrites and extend to the axon terminal. - Correct Answers False T/F When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - Correct Answers True The post-synaptic cell can be: - Correct Answers In glands, muscle cells, neurons T/F Excitatory synapses cause depolarization of the post-synaptic cell. - Correct Answers True T/F Only pre-synaptic neurons are coated with myelin. - Correct Answers False T/F Fast neurons as described in lecture are fast because they are surrounded by a type of glial cell that results in a myelin coating. - Correct Answers False T/F The axon from a pre-synaptic cell contacts the axon of another neuron. - Correct Answers False List the 4 types of glial cells and list a phrase to describe their function. - Correct Answers - Microglia: Are part of the cellular immune system to protect the brain since the humoral immune system usually cannot cross the BB barrier. - Astrocytes: Contribute to the blood brain barrier - Schwann Cells: myelinates axons of the neurons in the PNS - Oligodendrocytes: Myelinates axons of the neurons of the CNS The