Multiple Choice
Which of the following is a similarity between a hair cell and a typical neuron?
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45. Nervous System
Neurons and Action Potentials
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Which type of neuron-like cells release their secretions directly into the bloodstream?
A
Microglia
B
Neuroendocrine cells
C
Oligodendrocytes
D
Schwann cells
Verified step by step guidance1
Step 1: Begin by understanding the function of each cell type listed in the problem. Microglia are immune cells in the central nervous system that act as macrophages, clearing debris and pathogens. They do not release secretions into the bloodstream.
Step 2: Learn about oligodendrocytes. These cells are responsible for forming the myelin sheath around axons in the central nervous system, aiding in electrical signal transmission. They do not secrete substances into the bloodstream.
Step 3: Study Schwann cells. These cells perform a similar function to oligodendrocytes but are located in the peripheral nervous system. They also do not release secretions into the bloodstream.
Step 4: Focus on neuroendocrine cells. These specialized neuron-like cells release hormones or other signaling molecules directly into the bloodstream to regulate physiological processes. This is their defining characteristic.
Step 5: Conclude that neuroendocrine cells are the correct answer because they are the only type of cell listed that releases secretions directly into the bloodstream.
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