Exam 20: Central Nervous System

Each white column in the spinal cord consists of large numbers of cell bodies divided into smaller bundles called tracts.

The corpora quadrigemina is a landmark of which part of the central nervous system?

The ependymal cells are glia cells that assist in the production of cerebrospinal fluid.

Once a synapse is established in the brain, it remains for life.

The deepest border of the subdural space is the arachnoid membrane.

The spinal cord ends at vertebra L1 in a narrowed area called the:

The gray commissure joins the spinal cord to the brain.

What lobe of the cerebrum cannot be seen in an exterior view?

All spinal nerves are mixed nerves.

The nervous system is divided into two major divisions, the:

The part of the dura that extends into the longitudinal fissure is the falx cerebri.

The dura mater is the periosteum of the cranial bones, and the pia mater attaches the brain tissue.

Decussation of sensory neurons usually occurs at the secondary neuron level before reaching the thalamus.

The main divisions of the central nervous system are the:

Which part of the brain releases the hormone melatonin?

The diencephalon is part of the brain located between the cerebrum and the top of the brainstem.

The vomiting reflex is mediated by the medulla.

Cerebrospinal fluid is not found in the epidural space.

Both the dorsal and ventral root ganglia in the spinal nerves contain cell bodies.

From superior to inferior, the brainstem is composed of the pons, midbrain, and medulla oblongata.