timer Asked: Apr 18th, 2020

Question Description

1-Briefly describe (in sentence form) the various parts of the spinal cord and summarize the functions of these general areas.

2-How would superficial damage to the left anterior spinal cord likely impact physiological function of the affected individual?

3-Compare and contrast tonic and phasic receptors , use an example of each to support your answer.

4-Propose a mechanism for Painorphin (a new synthetic opiate ) . It has been found to have analgesic propeties and the receptors it binds to have been localized to the dorsal horn of the gray matter of the spinal cord on axon terminals of pseudounipolar neurons .

5-In your OWN words, describe the steps involved in phototransduction in rod cellsStart with a photon of light and end with an action potential in the optic nerve .

6-Explain what YOU would expect to happen if a drug which blocked the cation channel in the photoreceptive cells was applied to the left eye .

7-Using the patellar relfex as an example , explain the concept of spinal relfexes and why we have them .

8- Legend: (+) excitatory synapse (-) inhibitory synapse, Blue Cell (sensory), Green Cells (interneurons) Red / (Orang) Cells (motor neurons) red neuron - motor neuron to knee extensors, orange neuron-motor neuron to knee flexors. Is the above diagram an accurate representation of a potential set of circuitry that would to an effective reflex (Yes / (No)) ? Explain Why or Why Not (use the picture in the file) .

9- In your OWN words, using full sentences, compare and contrast the somatic motor nervous system and the autonomic nervous system (ANS) .

10-If nicotinic, cholinergic receptoragonist was dripped on the hearthow would you expect the heart to respond? Would heart rate and / (or) contractility rease/decrease/ or show no change ? Explain your answer .

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