exam 10

Question 1

decreasing ___ will always lead to a __ in BP

Answer 1

dec angiotensin 2

decrease in BP

Question 2

Lub pshh dub lub pshh dub is what

Answer 2

right ventricle is leaking blood into right atrium

Question 3

decreased metabolic activity in organ 1 leads to the same blood flow to organ 2, why

Answer 3

bc of flow autoregulation

Question 4

increasing the end systolic volume a little will ___ the stroke volume while the ___ will remain the same

Answer 4

decrease—-

heart rate remains the same

Question 5

cardiac output has an inverse relationship with ____ and a direct relationship with ____

Answer 5

end systolic volume—

blood vessel diameter

Question 6

the vessel that carries deoxygenated blood away from the heart is the what

Answer 6

pulmonary artery

Question 7

stroke volume will increase when

Answer 7

circulating cortisol is increased

Question 8

during the QRS complex of an EKG Ca levels in the SR of the ___ are ___ and the __ valves will become closed

Answer 8

ventricles – decreasing — atrioventricular

Question 9

venules have ___ walls due to what

Answer 9

thin walls due to low hydrostatic pressure force

Question 10

in an arteriole the hydrostatic pressure ____ when the cytosolic CA levels in its ____ muscle ____

Answer 10

increases —- smooth — increases

Question 11

what is a correct pair of a stimulus with its effect on BP

Answer 11

sleep and dec BP
dec BP and liver pain
low O2 and inc BP
High CO2 and inc BP

Question 12

a normal P wave is followed by an abnormal QRS complex what is a correct statement of the cause of this

Answer 12

the purkinje fibers are damaged

Question 13

Each day before starting her workout at the RPAC, Carmen checks her blood pressure which is typically in the normal range. Today, the machine determined that her blood pressure was elevated. Correct statements about her body are what

Answer 13

her baroreceptors are sending a higher action potential frequency to her brainstem than yesterday–
her body will be lowering her level of circulating angiotensin II to help counteract the problem.

Question 14

Using her physiology knowledge, Julie realized that her feelings of light headedness and dizziness were likely due to low blood pressure. She determined that potential causes could be what

Answer 14

could be too much nitric oxide being released —

and damage to her vasopressin receptors.

Question 15

Through the systemic system (i.e., not to the lungs), as the blood moves away from and back to the heart, the components that have a continuously decreasing (i.e., never increasing) relationship with the distance travelled from the heart are what

Answer 15

the elasticity of the blood vessels and the BP

Question 16

what are correct statements about the arteriolar BP

Answer 16

that it is indirectly regulated by the kidneys, it is not the same throughout the body, and it can be controlled both locally and from a distance

Question 17

to decrease blood flow through the arterioles at a skeletal muscle what could you do

Answer 17

NOT Use epinephrine to cause vasodilation

you COULD dec the sympathetic nervous system

Question 18

how could you increase cardiac output

Answer 18

increase conduction velocity
dec arterial BP
inc Sympathetic nervous system