Place the events of a chemical synapse in chronological order.
What will be an ideal response?
1. an action potential reaches the presynaptic terminal
2. voltage-gated Ca++ channels open
3. Ca++ diffuses into the presynaptic terminal
4. neurotransmitters are released into the synaptic cleft
5. neurotransmitters bind to receptors on the postsynaptic membrane
6. depolarization or hyperpolarization of the postsynaptic membrane occurs.
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The portal vein is seen in formation
A. superior to the pancreas. B. posterior to the pancreas. C. anterior to the pancreas. D. inferior to the pancreas.
The white pulp of the spleen functions to _____.
A) produce lymphocytes B) remove foreign particles C) store blood D) phagocytize bacteria
The end products of aerobic respiration are
A) carbon dioxide, water, and ATP. B) pyruvic acid and carbon dioxide. C) carbon dioxide and alcohol. D) oxygen and water. E) NADH and FADH2.
If chest compressions and repositioning of the airway are unsuccessful in removing a severe airway obstruction in an unconscious patient, you should:
A) perform a blind finger sweep of the mouth. B) alternate chest compressions and abdominal thrusts. C) perform laryngoscopy and use Magill forceps. D) gain airway access via the cricothyroid membrane.