Functions of astrocytes include all of the following except
A) maintaining the blood-brain barrier.
B) conducting action potentials.
C) guiding neuron development.
D) responding to neural tissue damage.
E) forming a three-dimensional framework for the CNS.
B
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The hard palate of the roof of the mouth is mostly formed by the
A) palatine processes of the maxillae. B) lesser wings of the sphenoid bone. C) nasal bones. D) zygomatic process. E) palatine bones.
Which area of the nephron completely lacks microvilli and is under hormonal control for the reabsorption of sodium?
A) papillary duct B) DCT C) nephron loop D) PCT E) None of the answers are correct.
The chemicals that transmit signals across the synapse are called ____
a. sarcolemmas b. neurotransmitters c. synapses d. receptors
As the rate of sweat production increases, the amount of Na+ lost in the urine ________.
A. decreases B. remains the same C. increases