Question

In: Anatomy and Physiology

Receptors,General,Chemical senses what is the pathway taken by somatosensory information from the receptor to the brain...

Receptors,General,Chemical senses

what is the pathway taken by somatosensory information from the receptor to the brain ?

Physiology of tase

besides the 5 primary sensations ehat other sensations are involved in taste ?

olification: where are the receptors located ?

Expert Solution

Question no 1

Pathway of somatosensory system

Many somatosensory systems are present like pain, pressure warmth etc

Let us take pain pathway

The spin receptor in our body will get stimulated by any stimuli for example like a pin prick .

FIRST ORDER. NEURON

They are cells from specific posterior nerve root ganglia. The impulses are received by dentrites and is conducted to the axon to the spinal cord . Then synapse is formed at the greyhorn for further conduction

SECOND ORDER NEURON

The neuron of marginal nucleus and the specific substantia gelatinosa of rolondo form secondary neuron . They move up from the lateral spinothalamic tract . These move through the medulla and reach the ventral posterolateral nucleus.

THIRD ORDER NEURON

they are neurons in

1) reticular formation

2) grey matter around the aqueduct if Sylvius

3) thalamic nuclei

4) tectum

Through the thalamus it reach the sensory cortex which is the main site for perception of somatosensory system

Sydney Mullin answered 1 year ago

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