Please answer the following terms
Answers
1. A noticable change in external or internal surroundings.
2. A signal that travells through nerve fiber and release in neurotransmitters through which information os tenasferred
3. The layer that surrounds myelin sheath.
4. Axon is the long nerve fibre in a neuron attached to one end from cyton it helps in trans mission of signals.
5. The bigger part of neuron from which axon is projected is called cyton.
Answer:
1) stimulus is a thing or event that evokes a specific functional reaction in an organ or tissue.
2)impuls is a sudden strong and unreflective urge or desire to act.
3)neurilemma- It forms the outermost layer of the nerve fiber in the peripheral nervous system. The neurolemma is underlain by the myelin sheath (referred to as the medullary sheath in the included illustrations). In the central nervous system, axons are myelinated by oligodendrocytes, thus lack neurolemma.
4)axon is a segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence.
5)cyton is a cell especially : neuron.
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