Which of the following is NOT a function of astrocytes?
A) stimulate blood vessels in the brain to maintain tight junctions
B) provide growth factors to neurons
C) produce extracellular matrix
D) excite muscle cells
Correct Answer:
Verified
Q11: In a human brain,the number of glial
Q12: The birth of new neurons in the
Q13: Where are voltage-gated Na⁺ channels concentrated?
A)spaced uniformly
Q14: Fruit flies carrying the shaker mutation have
Q15: Repolarization during the refractory period is largely
Q17: Which of the following represents a correct
Q18: What starts an action potential in a
Q19: How are most voltage-gated channels inactivated?
A)by ligand
Q20: Which cells produce myelin sheaths?
A)Schwann cells and
Q21: Botulinum toxin acts on:
A)SNARES to promote vesicle
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