7-4 cerebrum

gray matter of brain

-external -location of neuron cell bodies, dendrites, and unmyelinated axons

temporal lobe

A region of the cerebral cortex responsible for hearing and smell

frontal lobe

anterior portion. -voluntary motor functions, concentration, verbal communication, decision making, and personality

central sulcus

boundary between frontal and parietal lobes

lateral sulcus

boundary between frontal, parietal, and temporal lobes

white matter of brain

connects regions within the nervous system. derives its color from the myelin in the myelinated axons

cerebal nuclei

deep bodies of gray matter within the cerebrum

parieto-occipital sulcus

divides parietal and occipital lobes

cerebral hemispheres

each hemisphere receives and sends information to the opposite side of the body

insula

portion of the cerebral cortex deep to the lateral sulcus

precentral gyrus

portion of the frontal lobe that houses the primary motor cortex, where neurons control voluntary skeletal muscle

postcentral gyrus

portion of the parietal lobe that houses the primary somatosensory cortex, where neurons receive somatic sensory information such as touch, pressure, pain, and temperature receptors

corpus callosum

provides the primary white matter communication link between the cerebral hemispheres

parietal lobe

receives sensory input for touch and body position

occipital lobe

responsible for processing incoming visual information and strong visual memories

gyrus (gyri)

rounded elevation on the surface of the cerebral hemispheres

longitudinal fissure

separates cerebral hemispheres

sulcus

shallow groove between gyri

lateral ventricles of brain

spaces within the cerebral hemispheres that produce and circulate CSF

septum pellucidum

thin partition that separates lateral ventricles

fornix

thin tract of white matter involved in limbic system functions