Adrenaline (Edexcel GCSE Biology): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
Gland producing adrenaline
Gland producing adrenaline
Adrenal gland
Adrenaline prepares body for
Adrenaline prepares body for
Action (fight or flight response)
Two substances adrenaline increases to cells
Two substances adrenaline increases to cells
O2 and glucose
Effect of adrenaline on breathing rate
Effect of adrenaline on breathing rate
Increases rate/depth - more O2 into body
Effect of adrenaline on heart rate
Effect of adrenaline on heart rate
Increases - heart contracts faster & more forcefully
What adrenaline binds to in the heart
What adrenaline binds to in the heart
Specific receptors
How adrenaline increases blood pressure
How adrenaline increases blood pressure
Causes vasodilation - more blood pumped around
Where blood diverted during adrenaline response
Where blood diverted during adrenaline response
To muscles, away from intestine
Symptom from blood diverted from intestine
Symptom from blood diverted from intestine
'Butterflies' in stomach or going pale
How adrenaline increases blood sugar levels
How adrenaline increases blood sugar levels
Stimulates liver to convert glycogen to glucose
What glycogen converts to in liver
What glycogen converts to in liver
Glucose (released into blood for respiration)
Signal sent to adrenal glands during stress
Signal sent to adrenal glands during stress
Nervous impulses