BackThe corticospinal tract
(a) Carries motor commands from the cerebral cortex to the spinal cord
(b) Carries sensory information from the spinal cord to the brain
(c) Starts in the spinal cord and ends in the brain
(d) Does all of these
Match the names of the supporting cells found in column B with the appropriate descriptions in column A.
Column A
_______ (1) myelinates nerve fibers in the CNS
_______ (2) lines brain cavities
_______ (3) myelinates nerve fibers in the PNS
_______ (4) CNS phagocyte
________(5) helps regulate the ionic composition of CNS extracellular fluid
Column B
a. Astrocyte
b. Ependymal cell
c. Microglial cell
d. Oligodendrocyte
e. Satellite cell
f. Schwann cell
a. Define cerebrovascular accident or CVA.
b. Describe its possible causes and consequences.
Cerebrospinal fluid is formed by
a. Arachnoid granulations
b. Dura mater
c. Choroid plexuses
d. All of these
Mark the following statements about the brain as true or false. If a statement is false, correct it to make a true statement.
The four main components of the brain are the cerebrum, the diencephalon, the cerebellum, and the brainstem.