Communication and homeostasis

Question 1

dendron

Answer 1

The part of the neuron which carries nerves impulses to the cell body

Question 2

Axon

Answer 2

The part of the neuron which carries a nerve impulse from there’ll body to it’s destination

Question 3

transducer

Answer 3

something which converts one form of energy into another\

Question 4

AP- Stimulus

Answer 4

Sodium ion channels open, sodium moves into the neurone

Question 5

AP- Depolarisation

Answer 5

Potential difference meets threshold level causing voltage gated sodium ion channels to open, sodium ions move into neurone

Question 6

AP- Repolarisation

Answer 6

Potential difference reaches +30mV, voltage gated sodium ion channels close, voltage gated potassium ion channels open and potassium ions leave neurone

Question 7

AP-hyperpolarisation

Answer 7

potassium channels are slow to close so potential difference is slightly negative than resting potential

Question 8

AP- resting potential

Answer 8

Sodium-potassium pump returns membrane to RP and maintains it