Chapter 2 - Intro to Communication, Sciences, and Disorders

CNS (central nervous system) structures

the cerebral hemispheres, all its contents, the brainstem, cerebellum, and spinal cord

PNS (peripheral nervous system) structures

Nerves exiting the brainstem and spinal cord that innervate various structures of the body such as muscles, gut, heart and heart

CNS function

acts as control center for nervous system; processes information; provides short-term control over activities of othe systems

PNS function

Sensory & Motor functions; Connects CNS to rest of the body

dendrites

project from the neuron cell bodyand receive information from other neurons

cell body

where an electrical impulse is initiated inresponse to stimulation

axon

conduct electrical impulses from the cellbody to the terminal segment at the end of the axon

terminal segment

delivers information to otherneurons via neurotransmitters

synapse

the terminal segment of one neuron, the dendrites of another, and synaptic cleft between them-- the location where the information transfer takes places

gray matter

CNS= outside PNS=inside

billions of neuron cell bodies

CNS- PROCESSING AND INTERPRETING INFO

PNS- MOTOR NEURONS/CONTRACTION AND/OR SENSORY

white matter

CNS= inside PNS= outside

TRANSMITS THAT INFO ACTING AS COMMUNICATION PATHWAY

frontal

mood regulation, info processing

parietal

speech & language processing

occipital

Vision- simple & complex visual impairment

temporal

hearing & understanding it- primary auditory cortex

broca's area

word finding- speech production- articulation

frontal lobe, left hemi

wernicke's area

comprehension- word analysis- receptive language

temporal/parietal lobe

basal ganglia

-movement control, cognition, and emotion

-thalamus connects it to cortex which is main sensory pathway

-top of midbrain, center of your brain