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Exercise 26 (p. 201)

The spinal cord is an extension of the

brain.

The spinal cord extends through each ____ foramen, which collectively make the ____ canal.

vertebral, vertebral

The ____ begins at the the foramen magnum.

spinal cord

The spinal cord ends at the

L1-L2 interspace.

The spinal cord and the brain make up the

CNS.

Communication travels up and down the spinal cord, byway of

tracts.

Ascending tracts, which carry information up the spinal cord, carry

sensory information.

Descending tracts, which carry information down the spinal cord, carry

motor information.

The meninges are

three protective layers that cover the spinal cord and the brain.

From the outside to the inside, the meninges are the following:

the (1) dura mater, the (2) arachnoid membrane, and the (3) pia mater.

The dura mater has outer and inside layers which form the

(1) venous sinuses, and the (2) false partitions.

The venous sinuses of the dura mater are the

superior sagittal and transverse sinuses.

The false partitions of the dura mater are the

falx cerebri, falx cerebelli, and tentorium.

The ____ has a ____ space for cerebrospinal fluid.

arachnoid membrane, subarachnoid space

The pia mater lays on the

surface of the brain and spinal cord.

The pia mater of the meninges covers the

blood vessels.

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