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SCI220-Anatomy Stack 2
Question | Answer |
---|---|
Gray matter in the brain and spinal cord consists primarily of: nerve fibers. neuroglia. axons. cell bodies. | cell bodies |
Astrocytes attach to: neurons. oligodendrocytes. blood vessels. both A and C. | both A and C. Neurons and Blood Vessels |
Schwann cells have a function in the PNS that is similar to that of which cells in the CNS? Oligodendrocytes Astrocytes Microglia Ependymal cells | Oligodendrocytes |
The nervous system is organized to do which of the following?Detect changes in the external environment. Detect changes in the internal environment. Evaluate changes in the environment. All of the above are true. | All of the above are true. |
One of the components of the blood-brain barrier is: astrocytes. neurons. myelin. oligodendrocytes. | astrocytes. |
Multipolar neurons have: multiple axons and multiple dendrites. multiple axons and one dendrite. multiple dendrites and one axon. one dendrite and one axon. | multiple dendrites and one axon. |
Along a neuron, the correct pathway for impulse conduction is: dendrite, axon, cell body, and receptor. dendrite, cell body, and axon. axon, cell body, and dendrite. receptor, axon, and cell body. | dendrite, cell body, and axon. |
The autonomic nervous system does not stimulate: skeletal muscles. smooth muscles. glands. cardiac muscle. | skeletal muscles. |
Which is not true of the myelin sheath? It is associated with white fibers in the brain. It is important for nerve impulse conduction. It covers cell bodies in the brain and spinal cord. It is destroyed in those with multiple sclerosis. | It covers cell bodies in the brain and spinal cord. |
The white matter of the nervous system is made up of: myelinated fibers. nuclei. unmyelinated fibers. ganglia. | myelinated fibers. |