Indicate which cranial nerve(s) is (are) most closely associated with each of the following functions:1. Sense of hearing ______________________________2. Sense of taste ______________________________3. Sense of sight ______________________________4. Sense of smell ______________________________5. Sense of equilibrium ______________________________6. Conducting sensory impulses from upper teeth ______________________________7. Conducting sensory impulses from lower teeth ______________________________8. Raising eyelids ______________________________. 9. Focusing lenses of eyes ______________________________10. Adjusting amount of light entering eye ______________________________11. Moving eyes ______________________________12. Stimulating salivary secretions ______________________________13. Movement of trapezius and sternocleidomastoid muscles ______________________________14. Muscular movements associated with speech ______________________________15. Muscular movements associated with swallowing ______________________________
Anatomy and Physiology of Special Sensory Organs
Sensory organs can be labeled as special sensory structures that permit sight, hearing, odor, and flavor. Sensory structures permitting proprioception, touch, thermal, and pain perception can be classified as more advanced sensory organs. The sensory neurons are trained to find out modifications in the external and internal conditions so that a person's body can react to that change. A stimulus is the first signal that is recognized by any sensory receptor of the body. Stimulus is an impulse generated when there is a change in the surroundings of a person. For example, a heated environment will alert the brain through the thermal sensory organs and generate a reflex accordingly.
Sensory Receptors
The human sensory system is one of the most complex and highly evolved structures, which processes a myriad of incoming messages. This well-coordinated system helps an organism or individual to respond to external stimuli, appropriately. The sensory receptors are an important part of the sensory system. These receptors are specialized epidermal cells that respond to external environmental stimuli. These receptors consist of structural and support cells that form the peripheral unit of the receptor and the neural dendrites which receive and detect the external stimuli.
Indicate which cranial nerve(s) is (are) most closely associated with each of the following functions:
1. Sense of hearing ______________________________
2. Sense of taste ______________________________
3. Sense of sight ______________________________
4. Sense of smell ______________________________
5. Sense of equilibrium ______________________________
6. Conducting sensory impulses from upper teeth ______________________________
7. Conducting sensory impulses from lower teeth ______________________________
8. Raising eyelids ______________________________. 9. Focusing lenses of eyes ______________________________
10. Adjusting amount of light entering eye ______________________________
11. Moving eyes ______________________________
12. Stimulating salivary secretions ______________________________
13. Movement of trapezius and sternocleidomastoid muscles ______________________________
14. Muscular movements associated with speech ______________________________
15. Muscular movements associated with swallowing ______________________________
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