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5209069
biopsychology: the nervous system and the endocrine system
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AS - Level psychology (chapter 4 - approaches in psychology ) Mapa Mental sobre biopsychology: the nervous system and the endocrine system, criado por Daisy U em 21-04-2016.
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psychology
chapter 4 - approaches in psychology
as - level
Mapa Mental por
Daisy U
, atualizado more than 1 year ago
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Criado por
Daisy U
aproximadamente 8 anos atrás
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Resumo de Recurso
biopsychology: the nervous system and the endocrine system
the nervous system
it is a specialised network of cells (primary internal communication system
2 main functions
collect, process and respond to info
co-ordinate the workings of different organs
2 sub systems
central nervous system
brain and spinal chord
brain
centre of all conscious awareness
2 hemispheres
distinguishes us from animals
spinal chord
reflex actions
messages to and from the brain and the PNS
peripheral nervous system
transmits messages through neurons to and from the CNS
2 sub groups
autonomic NS
governs automatic functions
breathing
digestion
somatic NS
muscle movement
receives info from senses
the endocrine system
works alongside NS
slower than the NS but widespread powerful effects
glands and hormones
glands produce hormones
hormones secreted in the bloodstream
affect every cell in the body that has a receptor for that hormone
most hormones effect cells in most organs
leading to different and powerful responses
main gland - pituitary gland in brain
master gland
controls the release of hormones form all the endocrine glands in the body
endocrine and ANS work together: fight or flight
when a stressor happens - hypothalamus in the brain triggers activity in the sympathetic part of the ANS
changes from resting (parasympathetic) to aroused sympathetic
stress hormone releases adrenaline
pupils dilate, heart rate increases, lungs dilate, digestion stops, liver makes adrenaline
happens instantly
parasympathetic returns it to its resting place
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