BIO 181 (Capco ASU) Exam 3 (Final Exam) 2024

BIO 181 (Capco ASU) Exam 3 (Final Exam) 2024 T/F Excitatory synapses cause hyperpolarization of post-synaptic cells. - answerFalse The resting potential of neurons is: - answer-60 mv (The answer is not on this list.) T/F The autonomic nervous system contains the sympathetic and the parasympathetic nervous system. - answerTrue In the motor end plate, the event that is the immediate trigger for exocytosis is: - answerCalcium 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. - answer The action potential is: - answerA 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. - answerFalse T/F When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - answerTrue The post-synaptic cell can be: - answerIn glands, muscle cells, neurons T/F Excitatory synapses cause depolarization of the post-synaptic cell. - answerTrue T/F Only pre-synaptic neurons are coated with myelin. - answerFalse 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. - answerFalse T/F The axon from a pre-synaptic cell contacts the axon of another neuron. - answerFalse List the 4 types of glial cells and list a phrase to describe their function. - answer- Microglia: Are part of the cellular immune system to protect the brain since the humoral immune system usually cannot cross the BB barrier.