Advertisements
Advertisements
प्रश्न
Explain the Term: Reflex action
Advertisements
उत्तर
Reflex action is an action which is nearly instantaneous and not under the control of the will. The impulse passes from the sensory cells of the receptor organ along the dorsal root into the spinal cord. From here two messages pass simultaneously—one to the brain and the other travels out along the ventral root to reach the muscle which immediately responds
APPEARS IN
संबंधित प्रश्न
Name the three components of a neuron (or nerve cell).
The junction between two adjacent neurons is called :
(a) nerve junction
(b) sensory junction
(c) synapse
(d) neuro-muscular joint
Draw a labelled diagram to show the structure of skin.
Define the following:
Motor neuron:
Compare the nervous system and the endocrine system.
Distinguish between the following pair of words:
Nerve cell and neuroglia cell
What are the functions of proprioceptors?
Complete the following sentence with appropriate Word
The function of nervous system is to:
Name the hormone secreted by Pars intermedia in lower vertebrates.
Enlist the meninges of human brain.
