What special names are given to axons in the white matter of the cerebral hemispheres?
A) nuclei
B) nerves
C) ganglia
D) tracts
E) association fibers, commissural fibers, and projection fibers
Answer: E
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Which glial cell provides structural support and organization to the CNS?
A. Ependymal cell B. Astrocyte C. Neurolemmocyte D. Oligodendrocyte E. Microglial cell
Which of the following statements is NOT true?
a. The Amoeba is capable of responding to light. b. The surface of rhabdomeric photoreceptors consists of parallel microvilli. c. Due to the size of their visual field, pinhole eyes do not form images. d. Recognition of predator-prey movement requires a visual system that permits the formation of an image. e. Butterflies sense light with their genitalia.
The following guidelines will protect you from chemical hazards EXCEPT which statement?
A) Always use a spoon or spatula to take a dry chemical from a large storage container. B) Most chemicals are safe to handle with bare hands. C) Do not return unused portions of chemicals to their original containers. D) When mixing solutions always add a chemical to water; never add water to the chemical.
Commissural tracts
A. connect a region of one lobe with another lobe in the same hemisphere. B. link the cerebral cortex to the caudal brain regions and the spinal cord. C. connect different regions within a lobe. D. connect different regions of the cerebral cortex within the same hemisphere. E. extend between the right and left cerebral hemispheres.