BIOL 223 Chapter 13-1
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List the layers that comprise the spinal meninges.
The epidural space is located between the:
vertebrae and the dura mater
Where is the subdural space located?
between the dura mater and the arachnoid mater
What is found in the subarachnoid space?
What anchors the spinal cord in place laterally?
How many segments does the spinal cord contain?
The spinal cord extends from the foramen magnum to which vertebrae?
What is the purpose of the filum terminale?
holds spinal cord in place vertically by attaching to the coccyx
How many pairs of spinal nerves are there?
The cervical vertebrae have how many spinal nerves?
The thoracic vertebrae have how many spinal nerves?
The lumbar and sacral vertebrae each have _______ pairs of spinal nerves.
The nerves of the fingers and arms can be found in the _______ enlargement.
The lumbar enlargement contains the nerves that control the:
The narrow area between the two enlargements controls the:
How is the gray and white matter arranged in the spinal cord?
white on the outside, gray on the inside
White matter of the spinal cord is arranged in:
The columns of white matter in the spinal cord are also called:
Gray matter on the inside of the spinal cord is shaped like a _______ and arranged into _______.
What is the purpose of the sensory nuclei in the spinal cord gray matter?
transmit information from receptors to the brain
What is the purpose of the motor nuclei in the spinal cord gray matter?
transmit information from the brain (CNS) to effectors
The sensory and motor nuclei of the spinal cord are each divided into two segments named:
What type of neurons travel through the dorsal root?
What type of neurons travel through the ventral root?
The dorsal root and the ventral root will merge to form:
the spinal nerve
What structure is within the dorsal ganglion?
cell bodies of unipolar sensory neurons
What information is carried in the ascending nerve tracts of spinal cord white matter?
What information is carried in the descending nerve tracts of spinal cord white matter?
True or False: A fasciculus will contain multiple funiculi.
False - a funiculi (white matter column) will contain mulitple fasciculi (nerve tracts)
Why is there no ventral ganglion?
motor neurons are multipolar in shape
BIOL 223 Chapter 13-1
Study Cards for Chapter 13 BIOL 223 CSN