| word(s) |
definition |
| cerebrum | thinking part of brain/ has lobes |
| Blood Brain Barrier | maintains a stable environment for brain/ prevents flux of hormones, ions and amino acids |
| meninges | coverings of the brain |
| dura mater | outermost meninx/ double-layered/ means tough mother |
| arachnoid mater | never dips into sulci/ loose brain covering |
| subdural space | narrow cavity between AM and DM |
| subarachnoid space | space between AM and PM/ filled with CSF |
| pia mater | gentle mother/ delicate tissue/ clings tightly to the brain |
| cerebrospinal fluid | watery, plasmalike fluid in brain containing glucose, urea, cations and some WBCs |
| roles of CSF | mechanical and chemical protection, circulation |
| medulla oblongata | has a cross over of motor fibers |
| pons | relat station for brain |
| inferior colliculi | startle reflex (auditory) |
| superior colliculi | visual reflex |
| cerebellum | coordinate voluntary movements/ receives and processes inputs/ provides timing for movements |
| diencephalon | central core of forebrain |
| thalamus | edits and sorts information coming to cerebrum |
| hypothalamus | main visceral control center |
| autonomic control center | involuntary/ BP, pupil size, heart rate |
| epithalamus | produces melatonin/ regulates sleep/wake and mood cycles |
| cerebral cortex | another word for gray matter |
| gyri | elevated ridges of tissue |
| sulci | shallow groove between gyri |
| fissure | deeper groove than gyri |
| cerebral white matter | myelinated nerve fibers grouped into large tracts |
| association tract | connect area within single hemi/ connect adjacent gyri and specific lobes |
| commissural tract | corpus callosum/ connect corresponding areas of right and left hemis |
| projection tract | ties cortex with the rest of nervous system |
| limbic system | the "emotional brain" |
| functions of cerebral cortex | consiousness, perception, communication, memory, appreciation, and understanding |
| sensory area | mediate concsious awareness of sense information |
| motor area | control voluntary movements |
| association area | integrate information for purposeful action |
| contra-lateral | term used when each hemisphere is concerned with sensory and motor functions of the OPPOSITE side of the body |
| lateralization | term used when two hemispheres are not entirely equal but there is some specialization |
mr. charles11
