Chapter 12 Part 2 A&P

The cell bodies of sensory neurons are located inside __________.

B -The posterior root ganglion contains the cell bodies of sensory neurons.

The third ventricle has been labeled __________.

B The narrow third ventricle is housed between the two lobes of the diencephalon.

The hole in the spinal cord through which CSF flows is the:

central canal

This area of the spinal cord is known as the __________.

cervical enlargement -The cervical enlargement is located in the cervical area, and roots of the nerves that serve the arms attach there.

Cerebrospinal fluid (CSF) is formed by ________ and reabsorbed through arachnoid granulations into ________.

choroid plexuses; dural sinuses

Which of the following cells secretes CSF into the ventricles of the brain?

ependymal cells

An epidural, or spinal anesthesia, is administered into the CSF flow around the spinal cord. Into what space is this medication injected?

epidural space

Which of the following is NOT a function of cerebrospinal fluid (CSF)?

maintain high intracranial pressure Submit Return to Assignment

Heidi sustained damage to her spinal cord in a car accident. She has no difficulty moving her arm, but has lost some sensation in her arm. What part of her spinal cord must have been injured?

posterior horn of spinal gray matter

What is the function of the labeled structure?

secretes CSF -The capillaries and ependymal cells of the choroid plexus are responsible for the production and secretion of cerebrospinal fluid (CSF).

Sensory information from proprioceptors about joint and muscle positions are carried to the brain by the:

spinocerebellar tracts.

Astrocytes and tight junctions create a barrier to viruses and bacteria known as:

the blood-brain barrier.

The nerve roots that fuse to form the spinal nerves serving the upper and lower limbs are attached to the spinal cord at the cervical and lumbar enlargements of the spinal cord.

true