IB Biology SL C3.1.8 Nerves as bundles
IB Biology SL C3.1.8 Nerves as bundles
Practise describing nerves as impulse-carrying pathways, using the vagus nerve as evidence for communication between the brain and organs.
How this is tested
- state how the vagus nerve transmits impulses from the brain to stomach glands
- link vagus nerve activity to stimulation of gastric acid secretion
- apply the vagus nerve example to parasympathetic responses such as slower heart rate