The Human Nervous System (OCR A-Level Biology A): Flashcards
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Practise the cards
10 cards from this deck
CNS components
CNS components
Brain and spinal cord
Somatic nervous system function
Somatic nervous system function
Manages voluntary body movements
Sympathetic nervous system role
Sympathetic nervous system role
Fight-or-flight response
Parasympathetic nervous system role
Parasympathetic nervous system role
Rest-and-digest state
% of brain mass that is cerebrum
% of brain mass that is cerebrum
80%
Reason cerebral cortex is folded
Reason cerebral cortex is folded
Increases surface area for more neurone cell bodies
Hypothalamus main function
Hypothalamus main function
Monitors blood composition & coordinates homeostasis
ADH function
ADH function
Increases water reabsorption in kidneys
Cerebellum function
Cerebellum function
Coordinates motor functions, balance, and posture
3 control centres in medulla oblongata
3 control centres in medulla oblongata
Cardiac, vasomotor, respiratory