BIO 203 PURDUE FINAL EXAM
QUESTIONS AND ANSWERS 100%
CORRECT 2025
, autonomic (visceral) reflex - ANSWER1 receptor
2 sensory afferent neuron
3 one or more interneurons
4 preganglionic motor neuron
5 postganglionic motor neuron
6 effector
2 systems that determine blood pressure - ANSWERsympathetic nervous system
RAA system
4 causes of edema - ANSWER1. low plasma protein osmotic pressure (liver disease,
protein malnutrition)
2. high venous pressure (gen or pulmonary edema standing motionless, failing heart)
3. elevated protein osmotic pressure (leakage of protein into interstitial fluid -- allergies,
insect bite, inflammation)
4. blocked lymphatics (surgery, tumor, filariasis_
What is edema - ANSWERSwell of tissue (accumulate in interstitial fluid)
Factors that determine blood pressure - ANSWERcardiac output,
total peripheral resistance,
capacity of the venous system,
volume of fluid in the circulatory system
Vasodilators - ANSWERnitric oxide and histamine
Vasoconstrictors - ANSWERNE, E
Angiotensin II
Vasopressin
Endothelin
Vestibular apparatus - ANSWERutricle, saccule, semicircular canals
Utricle - ANSWERhead tilt, horizontal accel/decel
Saccule - ANSWERvertical accel and decel
Cataract - ANSWER-lens loses transparency and becomes opaque
-caused from UV, chemical agents or infrared radiation
-if vision is lost, it can be removed and replaced with artificial lens
Astigmatism - ANSWERirregular curve of cornea
QUESTIONS AND ANSWERS 100%
CORRECT 2025
, autonomic (visceral) reflex - ANSWER1 receptor
2 sensory afferent neuron
3 one or more interneurons
4 preganglionic motor neuron
5 postganglionic motor neuron
6 effector
2 systems that determine blood pressure - ANSWERsympathetic nervous system
RAA system
4 causes of edema - ANSWER1. low plasma protein osmotic pressure (liver disease,
protein malnutrition)
2. high venous pressure (gen or pulmonary edema standing motionless, failing heart)
3. elevated protein osmotic pressure (leakage of protein into interstitial fluid -- allergies,
insect bite, inflammation)
4. blocked lymphatics (surgery, tumor, filariasis_
What is edema - ANSWERSwell of tissue (accumulate in interstitial fluid)
Factors that determine blood pressure - ANSWERcardiac output,
total peripheral resistance,
capacity of the venous system,
volume of fluid in the circulatory system
Vasodilators - ANSWERnitric oxide and histamine
Vasoconstrictors - ANSWERNE, E
Angiotensin II
Vasopressin
Endothelin
Vestibular apparatus - ANSWERutricle, saccule, semicircular canals
Utricle - ANSWERhead tilt, horizontal accel/decel
Saccule - ANSWERvertical accel and decel
Cataract - ANSWER-lens loses transparency and becomes opaque
-caused from UV, chemical agents or infrared radiation
-if vision is lost, it can be removed and replaced with artificial lens
Astigmatism - ANSWERirregular curve of cornea
