1. Motor neurones are activated and the muscles of your arm contract, moving your hand away from the sharp object. This occurs in a fraction of a second — before the signal has been relayed on to the brain — so you will have pulled your arm away before even becoming conscious of the pain.
2. Sensory neurons receive impulses and carry them from the sense organs to the spinal cord or brain. Interneurons connect sensory and motor neurons and interpret the impulse. Motor neurons carry impulses from the brain and spinal cord to muscles or glands.
3.Spinal nerves contain both sensory and motor axons. The cell bodies of sensory neurons are located in dorsal root ganglia. The cell bodies of motor neurons are found in the ventral portion of the gray matter of the spinal cord.
4.stimulus) and react to the change (a response) in a way that maintains ... slouchinng
5. A reflex is an involuntary movement transmitted to the nerve centre in the brain or spinal cord. ... Reflexes perform many essential jobs for our central nervous system. They protect us from danger, they help us move our body and they help us to see.
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Answer:
1. Motor neurones are activated and the muscles of your arm contract, moving your hand away from the sharp object. This occurs in a fraction of a second — before the signal has been relayed on to the brain — so you will have pulled your arm away before even becoming conscious of the pain.
2. Sensory neurons receive impulses and carry them from the sense organs to the spinal cord or brain. Interneurons connect sensory and motor neurons and interpret the impulse. Motor neurons carry impulses from the brain and spinal cord to muscles or glands.
3.Spinal nerves contain both sensory and motor axons. The cell bodies of sensory neurons are located in dorsal root ganglia. The cell bodies of motor neurons are found in the ventral portion of the gray matter of the spinal cord.
4.stimulus) and react to the change (a response) in a way that maintains ... slouchinng
5. A reflex is an involuntary movement transmitted to the nerve centre in the brain or spinal cord. ... Reflexes perform many essential jobs for our central nervous system. They protect us from danger, they help us move our body and they help us to see.