18. Groups of related functions are associated with specific areas of the cerebral
cortex. For example, centers of speech and hearing are located along the lateral
. Vision is centered in the
lobe. Sensory and motor functions are
located along the central
.
19. The ventricles of the brain are interconnected hollow spaces filled with
.
The right and left lateral ventricles are found in the cerebral
s. The lateral
ventricles are connected to the third ventricle by the i
f
. The third
ventricle is located in the f
. The third and fourth ventricles are
connected by the c
a
. The fourth ventricle is located in the
h
. The fourth ventricle is continuous with the part of the spinal cord known
as the c
c
.
20.
The spinal cord, located within the spinal
l, is continuous with the
b
. The spinal cord has two enlargements. One, associated with
nerves for the upper members, is called the
enlargement. The other,
associated with the nerves for the lower members, is called the ________________
enlargement. Nerves arising from the spinal cord are called
nerves.
There are how many pairs of spinal nerves?
21. In the cross section of the spinal cord, one can see a central region of gray
matter shaped like an
. Each arm of this figure is called a
.
The connecting link is called the gray
. These horns are actually
sections of the gray
s. Since a column of white matter is a large bundle of
processes, it is called a
.
22. The skeletal covering for the brain is provided by bones of the
.
The overall skeletal structure covering the spinal cord is the
column (spine).
23. The brain and spinal cord have three different membranes surrounding them
called
. The tough outer covering for the CNS is the
. Beneath
it is the
space. The fine second membrane is called the
.
Beneath it is the
space, which is filled with
. The delicate membrane
applied directly to the surface of the brain and spinal cord is called the
.
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