Nervous System Flashcards
What is Nervous System?
Nervous System is a specialized nerve cells that conduct impulse from or to areas of the body to the brain and spinal cord.
What is the unit structure and function of the nervous system?
Neuron
What are the 4 functions of Nervous System?
- To perceive stimuli
- To transmit stimuli
- To effect response
- To coordinate and integrate functions of cells, tissues and organs to act harmoniously.
It is an involuntary movement in response to a stimulus.
Reflex
It is any factor in the environment causing the organism to respond.
Stimuli
What is Receptors?
Cells or organs that are sensitive to stimuli.
Axon are longer and covered by
_ _ _ _ _ _ _ _ _ _ _ _ and conducts impulse away from the cell body.
Myelin Sheath
_ _ _ _ _ _ _ _ are short and branched which conducts carries impulse toward the cell body.
Dendrite
Cell body (_ _ _ _) is the central part which contains the _ _ _ _ _ _ _.
Soma, nucleus
Schwann cells produce the myelin sheath for _ _ _ _ _ _ _ _ _ _ and
_ _ _ _ _ _ _ _ _ _of axon.
_ _ _ _ _ _ _ is the point of contact between neurons.
Protection, insulation
Synapse