Anatomy/Physiology Semester 2 Final Review 1. Describe the flow of light into th
ID: 3519998 • Letter: A
Question
Anatomy/Physiology Semester 2 Final Review 1. Describe the flow of light into the eye and how it is ultimately sent to the brain. Please include all relevant structures. 2. Describe how auditory vibrations are ultimately sent to the brain to process. Please include al relevant structures 3. Compare and contrast the vestibular and gustatory system. Please describe all of the hormones that are produced by the anterior pituitary gland and where they respectively go to in the body. 4. Please describe all of the hormones that are produced by the posterior pituitary gland and where they go to in the body. 5. Describe how the relationship between glucagon and insulin, as well as calcitonin and parathyroid hormone, exhibit negative feedback. 6.Explanation / Answer
Question 1
Answer
The pathway of flow of light into the eye and finally reaches the brain to get the vision as follows
Light through the eye to the cornea
The light from the source enters the transparent anterior outer layer of the eye called cornea.
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aqueous humor
From that, the light enters a clear liquid called the aqueous humor.
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Through pupil
The moves through the pupil, It is surrounded by the colored part called the iris, which regulates the light passage into the eye.
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Lens
The light passed through the lens. here it is refracted more.
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Vitreous humor
Then the light travels through the vitreous humor, it is clear colorless transparent jelly present in the posterior chamber of the eyeball
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Retina
Photoreceptors that are rods and cones in the retina are stimulated by the light and generate a nerve impulse.
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Optic nerve
It is the nerve which carries nerve impulses to the brain
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Brain (The occipital lobe)
The impulses reach the specific area of the brain that is visual cortex of occipital lobe where the information is processed and interpreted.
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