Which type of glial cell attacks microbes and removes debris?
A. Microglia
B. Oligodendrocytes
C. Astrocytes
D. Schwann cells
Answer: A
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Damage to the heart can cause inadequate blood circulation, which can lead to more damage to the heart. This is an example of a positive feedback cycle.
Answer the following statement true (T) or false (F)
In the stomach, ________ cells secrete hydrochloric acid.
Fill in the blank(s) with the appropriate word(s).
The sites where a chemical substance is transmitted from the presynaptic terminal of an axon to the postsynaptic membrane of a muscle fiber are called
A. neuromuscular junctions. B. sarcomeres. C. myofilaments. D. Z disks. E. cell body of neuron.
Multiple sclerosis is a neurological disorder in which myelin sheaths in the CNS are destroyed. Which of the following neuroglial cells is being damaged in multiple sclerosis?
A. Oligodendrocyte B. Ependymal cell C. Astrocyte D. Microglia E. Schwann cells