The somatosensory system consists of the neurons that make sensing touch, temperature, and position in space possible. It is made up of primary, secondary, and tertiary neural integrations.
The secondary neuron acts as a relay and is located in either the spinal cord or the brainstem. This neuron’s increasing axons will cross, or decussate, to the opposite side of the spinal cord or brainstem and travel up the spinal cord to the brain, where most will end in either the thalamus or the cerebellum.
The three main levels of neural integration pathway includes:
1.) Receptor level.
2.) Circuit level.
3.) Perceptual level.
In processing at the circuit level, three chains of neurone conduct sensory impulses upward to the brain. The second order neurone (soma) resides in the dorsal horn of the spinal cord and transmit impulses to the thalamus or cerebellum. Therefore the correct level is the circuit level. I hope this helps.
I believe the answer is echinodermataechinodermata and Chordata have a very similar embryonic development; tirhe first opening (the blastopore) becomes the anus, while in protostomes it becomes the mouth and several similarties in the formation of skeleton.It is predicted that Echinodermata and Chordata evolved from the same ancestor
What causes ocean waves? Ocean waves are created by the transfer of energy from the atmosphere to water. Most water waves are generated by wind moving over the water's surface that creates fractional drag. ... The water molecules within deep water trace a series of circles that extend below the surface of the wave base