pysch chp 2 test
parts of the brain
Terms
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- endocrine system
- bodys chemicals..communication carried out my hormones
- sensory cortex
- recieves info from skin and sense organs
- reuptake
- when transmitters are reversed causing depression of hyperness)
- threshold
- when currents exceed the minimum intesnity the neuron fires an action potenital
- left brain
- math and language
- refactory period
- after a neruon fires a action potienal it takes time to rest
- plasticity
- refers to the brains ability to recover after an injury
- aphasia
- imparment of language
- all- or - nothing response
- when depolaization current exceeds a neuron will fire
- neurons
- bodys information center
- neurotransmitters (chemicals)
- chemical messengers used by the synapse
- amygdala
- two clusters linked to FEAR and ANGER
- cell body
- lifes support center
- automatic NS
- divsion of the peripheral--controls everything your brain cannot (breathing, digesting, kidneys)
- AGonists
- neurtransmitters mimic actions of enderophins
- sympathetic NS
- arouses the body
- hypothalmus
- EATING, DRINKING,
- lesion
- as experiment that takes and chunk out of your brain to see what happens
- intensity
- action potential remains the same throughout the length of an axon
- hyperization
- when NEGITIVE ions enter the neurons
- nervous system
- all of the nerve cells, THE BODYS COMMUNICATION SYSTEM
- puiturity gland
- secrets many hormones which effect other glands
- motor cortex
- CONTROLS volutary movement
- somatic NS
- division of the peripheral--controls skeletal muscle
- sodium potassium pumps
- potassium out from inside the neuron to get ready for more
- dendrites
- extension of the cell body (RECIEVES messages from other neurons)
- ANTAgonists
- blocks neurtrasmitters to occupy its receptor site
- reticular formation
- nerve in brain stem controls AROUSAL
- peripheral NS
- the sensory and motor neurons
- parasympatic NS
- calms the body
- PET scan
- a virtual display of the brain...USES GLUCOSE
- cerebellum
- CORDINATES voluntary movement
- brainstem
- base of brain...contols HEART AND BREATHING
- central nervous system
- the brain and the spinal chord
- thalamus
- brains sensory switchboard....DIRECETS MESSAGES
- depolarization
- when POSITIVE ions enter the neurons
- MRI
- scan uses MAGNETIC FEILDS
- right brain
- art and music
- nerves
- "the connectors"
- EEG
- an amplified recoding of electrical WAVES(looks like sound waves)
- axon
- long etension of neuron (SENDS messages)