Question

need to know a, b and, c

A. discuss the difference between the central nervous system and the peripheral nervous sustem.

B. discuss the components of the somatic nervous system and those of the automatic nervous system. outline what they do!

Answer 1

Central nervous sytem:
1. It consists of spinal cord and brain
2. They carry short nerve impulses
3. Main function = Analyze and organize information from sensory organs
4. Injury causes a global effect on the body
5. Generally, these nerves do not exhibit regeneration

Peripheral nervous system:
1. It consists of motor neurons, sensory neurons, and sensory receptors
2. They contain long nerve fibers
3. The main function = Transmit sensory information to the CNS and send signals to the effector organs
4. Injury causes a local effect on the body
5. Generally, these nerves exhibit regeneration

Somatic nervous system:
1. Effectors = Voluntary muscles
2. Function = Adjustment to the external environment
3. Center = Anterior horn cells
4. Neurotransmitter = Acetylcholine
5. One synapse

Autonomic nervous system:
1. Effectors = Involuntary muscles
2. Function = Adjustment to the internal environment
3. Center = Lateral horn cells
4. Neurotransmitter = Acetylcholine, adrenaline, and noradrenaline
5. Two synapses