The Brain (Leaving Cert Biology): Flashcards
📚Flashcards
Practise the cards
15 cards from this deck
ShowHide
Practise the cards
15 cards from this deck
How many nerve cells in human brain (approx.)?
How many nerve cells in human brain (approx.)?
90 billion
Name of three protective layers around brain
Name of three protective layers around brain
Meninges
Fluid between inner meninges layers
Fluid between inner meninges layers
Cerebrospinal fluid (CSF)
Two functions of CSF
Two functions of CSF
Cushions brain; transports nutrients and waste
Largest part of the brain
Largest part of the brain
Cerebrum
% of nerve cells in cerebrum
% of nerve cells in cerebrum
75%
Bridge connecting cerebral hemispheres
Bridge connecting cerebral hemispheres
Corpus callosum
Location of cerebellum in brain
Location of cerebellum in brain
Back (hindbrain)
Two main functions of cerebellum
Two main functions of cerebellum
Muscular coordination and balance
Effect of cerebellum on learned movements
Effect of cerebellum on learned movements
Makes them automatic/involuntary
Function of thalamus
Function of thalamus
Sorting centre for sensory information
Two main roles of hypothalamus
Two main roles of hypothalamus
Regulating homeostasis; hormone regulation
Location of medulla oblongata
Location of medulla oblongata
Top of spinal cord
Type of actions medulla controls
Type of actions medulla controls
Involuntary (breathing, heart rate, etc.)
Why medulla called 'life centre'
Why medulla called 'life centre'
Controls vital involuntary functions keeping us alive