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Consider a system that contains three neurons in a culture dish bathed in normal physiological saline. All three neurons are healthy. Neuron A synapses onto Neuron B. Neuron B synapses onto Neuron C. Neuron A has glycine in its synaptic vesicles. Neuron B has ACh (acetylcholine) in its synaptic vesicles. The only ligand-gated receptors in Neuron A are AMPA receptors. The only ligand-gated receptors in the plasma membrane of Neuron B are glycine receptors. The only ligand-gated receptors in the plasma membrane of Neuron C are mACh (muscarinic ACh) receptors. All 3 neurons have no other ligand-gated receptors in their plasma membranes. All 3 neurons have a sodium equilibrium potential of +60 millivolts. All 3 neurons have a potassium equilibrium potential of -86 millivolts. Neuron A and Neuron B have a chloride equilibrium potential of -80 millivolts. Neuron C has a chloride equilibrium potential of -20 millivolts. The threshold for an action potential in all 3 neurons is -55 millivolts. At 1:55 AM, glutamate is added to the physiological saline. At 2:00 AM, the action potential firing rate of each neuron is 100 Hz. Which of the following will lead to a decrease in Neuron C's action potential firing rate?
A. At 2:01 AM, ACh is added to the bath.
B. At 2:01 AM, strychnine is added to the bath.
C. At 2:01 AM, CNQX is added to the bath.
D. A and B.
E. A and C.
F. B and C.
G. A, B, and C.
H. None of the above.
Traditionally, women tended to domestic chores and men earned the income. This model is less and less prevalent. Describe what is occurrring to family's traditional division of responsibilities.
For this Assignment, you are to discuss the insanity defense and ethical considerations. To help you prepare for this week's Assignment, review the following sources: In your text, Chapter 14: "Mental Health Services: Legal and Ethical Issues
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