Neurones
- Created by: tumblrgirl96
- Created on: 17-05-15 21:00
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- Neurones
- Motor Neurone
- Cell body containing the nucleus and cell organelles within the cytoplasm is located at one end of the neurone
- Situated within the CNS
- Has dendrites - very fine stensions that conduct impulses towards the cell body, on the same end as the cell body (i.e. extending from the cell body
- Axon extends out and conducts impulses from CNS to effectors
- Also knows as effector neurones
- Cell body containing the nucleus and cell organelles within the cytoplasm is located at one end of the neurone
- Sensory Neurone
- Cell body containing the nucleus and cell organelles within the cytoplasm extends from the middle of the neurone
- Carry impulses from sensory cells to the CNS
- Relay Neurone
- Cell body containing the nucleus and cell organelles within the cytoplasm is located in the middle of the neurone
- Found mostly within the CNS
- Have large numbers of connections with other nerve cells
- Known as connector neurones and internurones
- All have a cell body, dendrites (at one end of the neurone), terminal branches (at the other end of the neurone) and an axon - which transmits impulses away from the cell body
- Axons
- Surrounded by a fatty insulating layer called the myelin sheath
- Surrounded by Schwann cells
- Have nucleus
- Speeds up nerve impulses
- Surrounded by Schwann cells
- Surrounded by a fatty insulating layer called the myelin sheath
- Axons
- Motor Neurone
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