Question
Mention the characteristic features of two main types of nerve. Give examples.
Answer
Here are the characteristic features of two main types of nerves along with examples:
- Sensory Nerves:
- Transmit signals from sensory receptors to the central nervous system.
- Have cell bodies located outside the central nervous system.
- Unipolar in shape, with a single axon branching into two parts (peripheral and central).
- Examples include the optic nerve, auditory nerve, and dorsal root ganglia.
- Motor Nerves:
- Transmit signals from the central nervous system to muscles and glands.
- Have cell bodies located in the central nervous system.
- Multipolar in shape, with a single axon and multiple dendrites.
- Examples include the facial nerve, sciatic nerve, and phrenic nerve.
