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BIO 227 FINAL EXAM QUESTIONS AND VERIFIED ANSWERS..

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BIO 227 FINAL EXAM QUESTIONS AND VERIFIED ANSWERS

Institution
BIO 227
Course
BIO 227

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Q5: a dermatome is the relationship between


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sensory receptors and spinal nerves




Q7: The Area of highest visual activity is the


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macula lutea




Q7: What accurately describes the changes in the membrane potential of a
photoreceptor cell when light rays strike its photopigments?

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the photoreceptor cell undergoes repolarization




Q5: what interactions between electrical and chemical gradients contribute to
depolarization in an action potential?


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concentration gradient and electrical forces both move sodium ions into
the cell.




Q7: this outer layer of dense CT serves to protect the inner parts of the eyeball


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Sclera




Q6: the subarachnoid space of the brain receives CSF from the


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4th ventricle




Q7: the first step in the visual transduction process that occurs in the retina is

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absorption of light by photopigments (such as rhodopsin)




Q6: if we recorded your electroencephalogram while you took this test, it would
show predominatly


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beta waves




Q5: The muscle tissue that is totally under autonomic control is


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only cardiac and smooth




Q7: When sound waves strike this structure, they cause it to vibrate back and forth.


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Tympanic Membrane




Q5: what carries sensory information to the brain?


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, spinocerebellar and spinothamalic tracts




Q5: Cells responsible for information processing and transfer are


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neurons




Q5: in the tendon reflex in the knee, tension in the tendon organ causes


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inhibition in the anterior thigh muscle




Q6: the two cerebral hemispheres are separated into right and left hemispheres by a
deep groove called the


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longitudinal fissure




Q6: Gray matter of the brain consists of the ______ and ______.


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Institution
BIO 227
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BIO 227

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