Chapter 15 - Brain & Cranial Nerves Flashcards
The four major brain regions are:
Cerebrum, diencephalon, brainstem, cerebellum
Structural folds on other outer surface of the brain are called:
Gyri
Structural shallow depressions between the folds are called:
Sulci
Brain tissue composed of unmyelinated axons:
Gray matter
Brain tissue composed of myelinated axons:
White matter
External sheets of gray matter called:
Cortex
The structures protecting the brain include:
Bony cranium, meninges, CSF, blood brain barrier
List the cranial meninges from superficial to deep:
Dura mater, arachnoid, pia mater
Space between the arachnoid and the dura mater:
Subdural
The brain ventricles circulate the _____ fluid.
CSF
The CSF is formed by the:
Choroid plexus
The CSF is secreted by ______ cells.
Ependymal
Protects the nervous tissue from general circulation:
Blood brain barrier
The blood brain barrier does not exist in these areas of the brain:
Choroid plexus, hypothalamus, pineal gland
Deep grooves that separate major regions of the brain:
Fissures
Sulcus that separates frontal and parietal lobes:
Central sulcus
Sulcus that separates occipital and parietal lobes:
Parieto-occipital sulcus
Sulcus that separates parietal and temporal lobes:
Lateral sulcus
List the three kinds of cerebral cortex functional areas:
Motor, sensory, association