Understand that Stimulation of Receptors in the sense organs sends electrical impulses along nerves into and out of the Central Nervous System(CNS), resulting in rapid responses.
- Nervous system sends electrical messages along nerves to and from different parts of your body and they tell your body what to do.
- Sense Organs act as Receptors to detect change. They send messages to the CNS along the sensory nerves.
- Nerve cels are different from other cells. They both have cell membranes; cytoplasms and nucleus but they are of a different shape.
- Part of the cell is stretched out to form the AXON which can be over a metre long.
- The messages that nerves carry are called NERVE IMPULSES which are electrical signals that pass very quickly along the axon of the nerves.
-
No comments:
Post a Comment