Ch. 12A: Central Nervous System

The CNS consists of the __ and _

• cranial nerves

• brain

• spinal cord

• spinal nerves

Gray matter: myelinated and nonmyelinated axons

• True

• False

__ matter: short, nonmyelinated neurons and cell-bodes

• white

• yellow

• gray

• red

4 regions of the brain:

• epicranius

• cerebral hemispheres

• diencephalon

• brain stem

• cerebellum

Brain stem is made of the

• pons

• midbrain

• diencephalon

• medulla oblongata

What is the order of ventricles of the brain in descending order?

• lateral ventricle, fourth ventricle, third ventricle

• fourth ventricle, third ventricle, lateral ventricle

• third ventricle, lateral ventricle, fourth ventricle

• lateral ventricle, third ventricle, fourth ventricle

Gyri: ridges

• True

• False

Sulci: deep grooves

• True

• False

Fissures: deep groves

• True

• False

What is the site of the conscious mind?

• cerebral cortex

• medulla

• amygdala

• primary motor cortex