Review &Practice; Sheet Exercise 25 D. Application and Analysis 1. Imagine watch

Question

Review &Practice; Sheet Exercise 25 D. Application and Analysis 1. Imagine watching a bird fly across your line of vision. What part of your brain is active in keeping an image of the moving bird on your retina? 2. You have just eaten a medium-sized pepperoni pizza and are now lying down to digest it. Which cranial nerve stimulates the muscular activity of your digestive tract? A child is preoccupied with a large cherry lollipop. What part of the child's brain is responsible for the licking and eating reflexes? 3. E. Clinical Challenge 1. A patient is brought into the emergency department with severe whiplash. He is not breathing and has lost cardiac function. What part of the brain has most likely been damaged? A woman is admitted to the hospital with Bell's palsy caused by an inflamed facial nerve. What symptoms will you, as the attending physician, observe, and how would you test her facial nerve? 2.

Explanation / Answer

ANS D) Application and Analysis:

1) Watching a bird fly across line of vision the active part of brain responsible in keeping an image of the moving bird on your retina is the Visual cortex. Because visual cortex is the the portion of the cerebral cortex of the brain that receives and processes impulses from the optic nerves.

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2) You have eaten a medium sized pizza and are now lying down to digest it the cranial nerve that will help in stimulation of the muscular activity of your digestive tract is X vagus nerve. Because X vagus nerves helps in stimulatation of contraction and relaxation of smooth muscles of gastro intestinal tract and secretion of digestive fluids.

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3) A child preoccupied with large cherry loliipop licking and eating it. The part of child's brain responsible for the eating reflexes is the Hypothalamus because hypoythalamus is the part of brain that is responsible for eating reflexes like hunger and thirst.

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ANS E) Clinical Challenge

1) A patient is brought into the emergency department with severe whiplash , he is not breathing and has lost cardiac function the part of brain that is most likely to be damaged is the brain stem because the brain stem composed of  the midbrain, pons, and medulla oblongata acts as a relay center connecting the cerebrum and cerebellum to the spinal cord. Hence, performing automatic functions  such as breathing and heart rate.

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2) A women is admitted to hospital with Bell's palsy caused by an inflmed facial nerve so, the symptoms that is noticed while testing her facial nerve is that her facial muscles appears to be inflamed, swollen or sometimes compressed with difficulty eating and drinking, inability to make facial expressions, such as smiling or frowning,facial weakness, and muscle twitches in the face

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