| A | B |
|---|
| gyri | the raised portions of the cerebellar surface |
| septum pellucidum | a triangular membrane separating the anterior horms of the lateral ventricles |
| neuron | a general term meaning nerve cell |
| meninges | the three membranes which protect the brain/spinal cord |
| cerebrum | accounts for 80% of the brain's mass |
| choroid plexus | projections into the brain ventricles |
| fissures | deep grooves which divide the lobes of the cerebral hemispheres |
| splenium of corpus callosum | posterior rounded end of the corpus callosum |
| medulla oblongata | together with the pons makes up the brain stem |
| fornix | a general term for an arch-like structure |
| sulci | grooves between the gyri |
| arachnoid | the inner, more delicate, middle layer of the meninges |
| commissure | a site of union of common parts |
| cerebellum | the second major structure of the brain |
| dura mater | the outermost layer of the meninges |
| corpus callosum | an arched mass of white matter found in the depths of the longitudinal fissure |
| optic chiasm | part of the hypothalamus formed by the crossing of the optic nerve |
| diencephalon | contains some of the most vital centers of body activity |
| mesencephalon | the midbrain |
| genu | a general term used to describe any anatomical structure shaped like a knee |
| mammilary body | located near the pituitary gland |
| pia mater | the innermost layer of the meninges |
| corpora quadrigemina | part of the mesencephalon |
| pituitary | the "master gland" |
