1.Your kidneys will increase the rate of sodium excretion when: A.There is an in

Question

1.Your kidneys will increase the rate of sodium excretion when:

A.There is an increase in glomerular filtration rate

B. There is an increase in atrial natriuretic protein (ANP)

C,There is an increase in glomerular filtration rate and there is an increase in plasma renin concentration

D. There is an increase in glomerular filtration rate and there is an increase in atrial natriuretic protein (ANP)

E. There is an increase in plasma renin concentration

2.The Heimlich maneuver is effective when an individual has food (or other object) lodged in their trachea because:

A.With an decrease in forced pressure, there is a increase in thoracic volume, and an increased pressure gradient to move the lodged material out

B.With an decrease in forced pressure, there is a decrease in thoracic volume, and an increased pressure gradient to move the lodged material out

C. None of the choices are correct

D. With an increase in forced pressure, there is a decrease in thoracic volume, and an increased pressure gradient to move the lodged material out

E. With an increase in forced pressure, there is a increase in thoracic volume, and an increased pressure gradient to move the lodged material out

3. With 50% of adults worldwide afflicted with lactose intolerance,

A. Results in an increase in bacterial fermentation

B Is caused by a lack of lactose and results in an increase in bacterial fermentation

C Is caused by a lack of the enzyme lactase

D Is caused by a lack of the enzyme lactase and results in an increase in bacterial fermentation

E Is caused by a lack of lactose

4 Within your venous system, the normal resting value of partial pressure of O2 that is saturated with hemoglobin is:

A Nearly 100% saturated.

B Nearly 50% saturated.

C Nearly 25% saturated.

D Nearly 97% saturated.

E Nearly 75% saturated.

5. You are working at Pfizer and need to determine if a new pharmacological compound (drug) is being secreted. You would need to determine:

A If the clearance of the compound is greater than the glomerular filtration rate

B If the concentration of the compound in the plasma is decreasing over time

C None of the choices are correct

D If both the concentration of the compound in the urine is greater than its concentration in the plasma and the concentration of the compound in the plasma is decreasing over time

E If the concentration of the compound in the urine is greater than its concentration in the plasma

6 Constriction of the bronchioles would be due to:

A Stimulation from the parasympathetic nerves

B Two of the choices are correct

C Stimulation from the sympathetic nerves

D Stimulation from increased CO2 concentrations

E Stimulation from norepinephrin

7 Constriction of the bronchioles would be due to:

A Stimulation from the parasympathetic nerves

B Two of the choices are correct

C Stimulation from the sympathetic nerves

D Stimulation from increased CO2 concentrations

E Stimulation from norepinephrin

Explanation / Answer

1. d) when there is an increase in Glomerular filtration rate and there is an increase in atrial natriuretic factor.

In response to atrial stretch, the hormone ANF is released by the heart atria. ANF acts on kidneys to increase sodium excretion and thereby GFR. This is done to antagonize renal vasoconstriction and to inhibit renin secretion.

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