Central nervous system of the brain

sudus

shallow groove in the brain

gyrus

thick ridge

fissure

deep groove

Left brain

logic, language, analytical thinking

right brain

expression, emotional intelligence, imagination

cerebral gray matter

location of cell body

cerebral white matter

very myelinated, carries impulses to the brain

basal nuclei

helps regulate voluntary actions and executive functioning

Thalamus

relay station for sensory impulses, regulates where the impulse goes

hypothalamus

center for emotions, helps regulate body temp and pituitary gland

epithalamus

pineal gland (produces melatonin)

memory stages

stored in hippocampus

Sensory, lasts about 2 seconds

Working, able to remember/manipulate

short term, 7 items

long term, stored away

Types of long term memory

implicit- you unconsciously know (ride a bike)

explicit- learning aspect (facts)

Brain stem

pathway for incoming/outgoing nerve tracts

controls autonomic behaviors (dont think about, just do)

midbrain

reflex centers for vision and hearing

pons

involved in breathing control

medulla oblongata

merges spinal cord

controls blood pressure, breathing, swallowing, vomitting

reticular information

motor control of visceral organ

ras (reticular system)

* regulates level of consciousness
* filters incoming messages
* controls sleep modes

what are the 3 sleep modes

waking

asleep (resting)

asleep (rem)

cerebellum (little brain)

balance, equilibrium, timing of movement

ataxia

lack of muscle control of voluntary movements

What are the three layers of the CNS

Bones

membrane (meninges)

cerebrospinal fluid

dura mater

tough outermost layer attatched to the skull

arachnoid mater

web like medial layer, cushioning

dia mater

delicate inner layer

cerebrospinal fluid

forms in the choroid plexus

circulates throughout CNS

forms and drains at a constant rate

meningitis

inflammation of CSF

risk of hernation of brain or spinal cord

symptoms of meningitis

fever, headache, stiff neck, sensitivity to light, nausea, confusion

frontal lobe

personality, emotions, reasoning

parietal lobe

sensory

spatial

stimuli recognition

temporal lobe

auditory

olfactory center

short and long term memory

occipital lobe

visual process

visual spatial processing