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The mechanisms that produce and maintain the resting membrane potential do so by producing a slight excess of negative ions on the outer surface of the plasma membrane slight excess of positive ions on the outer surface of the plasma membrane. slight excess of positive ions on the outer surface of the plasma membrane.
The tiny bulge at the end of a terminal branch of a presynaptic neuron’s axon is called a(n) synaptic knob synaptic cleft telondendria receptor site synaptic knob
A membrane that exhibits a membrane potential is said to be unipolarized. multipolarized. bipolarized. polarized. polarized
There are two types of synapses—the electrical synapse and the __________ synapse. chemical mechanical sensory sonic chemical
Severe depression can be caused by a deficit in certain brain synapses of: acetylcholine. amines. amino acids. neuropeptides. amines
Parasympathetic stimulation has no effect on any of the following areas except: sweat glands. skin blood vessels. the liver. the urinary bladder. sweat glands
Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the _____ plexus. sacral cervical coccygeal lumbar coccygeal
The vagus is said to act as a “brake” on the heart. This situation is called cardiac inhibition. coronary inhibition. vagal inhibition. autonomic inhibition. vagal inhibition
During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? inferior vena cava. superior vena cava. ductus venosus. ductus arteriosus. inferior vena cava
Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: hemoglobin. osteons. erythroblasts. hematopoietic stem cells. hematopoietic stem cells
Created by: brittanyq7406
 

 



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