Main regions of the brain
Cerebral hemispheres, diencephalon, brain stem structures, cerebellum
Largest part of the brain
Make-up of cerebral hemispheres
Surface( cortex) is gray matter, interior is white matter with islands of gray metter (basal nuclei)
Cerebral hemispheres are separated by...
the longitudinal fissure
Functions of cerebral cortex
Speech, memory, logical and emotional response, consciousness, interpretation of sensation, voluntary muscle activity
Parkinson's and Huntington's are disorders of...
the basal nuclei
Promary motor area is in...
the frontal lobe
Cerebral white matter is composed of...
fiber tracts carrying impulses
Large fiber tract connecting the cerebral hemispheres
Role of basal nuclei
Regulate voluntary motor activities by modifying instructions sent to skeletal miscles
Location of diencephalon
On top of brain stem, enclosed by cerebral hemispheres
Major structures of diencephalon
Role of thalamus
Relay station for sensory impulses passing upward to sensory cortex
Role of hypothalamus
Regulates water balance, metabolism, thirst, temperature; also regulates pituitary gland
the two lower chambers of the heart
Structures of epithalamus
Pineal gland and choroid plexus of third ventricle
Choroid plexuses form...
Brain stem location
Inferior to the hypothalamus, merges with spinal cord
Structures of brain stem
Midbrain, pons, medulla oblongataa