1. Short term mechanisms for regulating blood pressure include all, except A. Ho
ID: 3483153 • Letter: 1
Question
1. Short term mechanisms for regulating blood pressure include all, except
A. Hormonal regulation
B. Aortic sinus reflex
C. Carotid sinus reflex
D. Heart beat rate changes
2. Longe term mechanisms regulate blood pressure
A. By hormone control
B. By adjusting blood volume
C. By conserving body fluids by the kidney
D. By stimulating fluid intake
E. All of the above
3. Vagus nerve innerveation causes the following chnages, EXCEPT
A. Arteriole dilation
B. Decreased heart rate
C. Decreased cardiac contractility
4. The regulation of blood pressure is maintained by sensory receptors sensitive to
A. stretch via baroreceptors
b. oxygen via chemoreceptors
c. carbon dioxide via chemoreceptors
d. PH via chemoreceptors
e. all of the above
5. The speed of blood flow
a. is the slowest in veins because of the remotesness from the heart
b. is the slowest in capallaries due to the enormous surface area
c. is fastest in capallaries due to the enormous surface area
d. is the slowest in capallaries due to the greatest total cross -sectional area
83. Short term mechanisms for regulating blood pressure include all, except a. Hormonal regulation b. Aortic sinus reflex c. Carotid sinus reflex d. Heart beat rate changes 84. Long term mechanisms regulate blood pressure a. By hormone control b. By adjusting blood volume c. By conserving body fluids by the kidney d. By stimulating fluid intake e. All of the above 85. Vagus nerve innervation causes the following changes, EXCEPT a. Arteriole dilation b. Decreased heart rate c. Decreased cardiac contractility 86. The regulation of blood pressure is maintained by sensory receptors sensitive to a. Stretch via baroreceptors b. Oxygen via chemoreceptors c. Carbon dioxide via chemoreceptors d. pH via chemorecptors e. all of the above 87. The speed of blood flow a. Is the slowest in veins because of the remoteness from the heart b. Is the slowest in capillaries due to the blood pressure being zero c. Is fastest in capillaries due to the enormous surface area d. Is the slowest in capillaries due to the greatest total cross-sectional area 88. Shock can be caused by a. Hemorrhage b. Severe dehydration caused by burns c. Damage to the myocardium d. Severe vasodilation e. Any of the above a. Arteries are the vessels with the most smooth muscle and elastic tissue b. Veins always carry oxygen poor blood c. Capillaries are only one cell layer think d. Arterioles usually have smooth muscle sphincters that regulate blood flow through capillary 89. Which statement below is NOT true about blood vessels bedsExplanation / Answer
1. Hormonal regulation consist of secretion, transportation and effect on the organ so it's long term process. Answer is A. Hormonal regulation.
2. Adjusting blood volumes, fluid intake, hormones and conservation of fluids by kidneys are the lond term mechanisms. So the answer is E. All the above.
3.Cardiac contractility depends on the ionic input to the cardiac muscle and it's not controlled by vagus nerve. So the answer is C.Decreased cardiac contractility.
4. The answer is E. All the above.
5. The answer is D. Slowest in the capillaries due to greatest total cross sectional area.
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