In the somatosensory pathway, which of the following neurons carries information from the PNS to the CNS? Group of answer choices First order neuron Third order neuron Second order neuron Specialized receptor cell
In the somatosensory pathway, which of the following neurons carries information from the PNS to the CNS?
Group of answer choices
First order neuron
Third order neuron
Second order neuron
Specialized receptor cell
The neurons are the basic fundamental units of the nervous system and also known as nerve cells. Just like all the cells in the human body, the neurons are also similar but the key factor that separates the neurons from all the cells in the body is the neurons ability to transmit information among the neural cells.
Correct answer: 1. First-order neuron.
The signals from the peripheral nervous system are carried to the central nervous system by the first order neurons. The impulses from the skin receptors, movement, pain, sight, are transmitted through the first order neurons through spinal cord, then to thalamus and forms synapse with the second order neurons. Finally, the third order neurons gets synapse from the second order neurons and transmits signal from the thalamus and to the primary sensory cortex.
Option 1. is given as “First order neuron”.
Hence, the correct answer is option 1
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