Question

Given alongside is a partial diagrammatic representation of a certain phenomenon pertaining to the nervous system.

1. Name the parts numbered 1-7.
2. Name the phenomenon that the diagram depicts and define it.
3. Give the technical term for the point of contact between two nerve cells.
4. Name the parts not shown in the diagram that should be included to complete the pathway of the phenomenon.

Answer 1

1.    
   1. White matter
   2. Spinal cord
   3. Dorsal root (sensory)
   4. Association Neuron
   5. Ventral root
   6. Gray matter
   7. Central Canal
2. The diagram depicts spinal reflex action.
   It is an automatic/quick/immediate, involuntary action in the body brought about by a stimulus.
3. Synapse
4. Receptor, sensory neuron, motor neuron, ·spinal nerve, effector muscles