[SOLUTION] Biology Lab Questions

Lab questionsOrganization of the nervous tissueWhat are the similar roots of the common fibular and tibial nerves?Gross anatomy of the central nervous systemWhat is the function of the reticular formation? Where is it located?What are the basic differences between the left and the right hemispheres of the cerebrum?What is the corpus callosum? Where would it be located on your model if you created it? Why is the corpus callosum important?What would happen to an individual who suffered damage to the occipital lobe of the brain?What is the location of the olfactory cranial nerve? How does this aid with its function?What is the difference between the dorsal and ventral roots of the spinal nerves?Where are the choroid plexuses found, and what is their function?Describe the folding of the cerebrum in a sheep brain compared to a human brain. Why are the folds important?The cerebellum of the human is divided into two portions, while the sheep only has one portion of the cerebellum. Why is there a difference?How is the brain stem different in the sheep brain than in the human brain?Reflex and sensory physiologyDescribe how scent and taste work in conjunction. Are the tastes of all of the foods that were tested heightened by the sense of smell, or only some of the foods?Were certain areas of your tongue more sensitive to tastes than others? Describe your answer using your observations.What does it mean if you can hear the tuning fork more clearly in one ear or another during the Weber test?How is the mechanism of hearing different if the handle of the tuning fork is held on the mastoid process instead of holding the tuning fork tines near the ear canal?What types of mechanisms does the body use for balance? How does vision affect balance?Imagine that you were standing on a moving platform when performing the balance test. How would this affect balance and why?The “blind spot” is more like a “blind sphere.” Is the depth (distance from where the circle disappeared to where it reappeared in this exercise) approximately the same for each eye? What does this indicate?Explain why a blind spot is not normally perceived. What is an afterimage? Why does it occur?What causes the patellar reflex?Why is the patellar stretch reflex beneficial?Describe the nerve signal transmission from the stimulus to the response.What, if any changes, occurred when the volunteer was reading while the reflex was tested? Explain your results. What is refraction? Which portions of the eye primarily refract light before the light reaches the retina? How did these areas appear in the cow eye?What is the function of the optic disc?What is the function of the choroid? How is the choroid different in cows than in humans? What does the choroid look like on the cow eye?

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