Question

Compre hewsion. 1. List the order of events to restore low blood pressure to normal. Use the list below. This substance acts as a vasoconstrictor and stimulate aldosterone a. Rennin is released and converts angiotensinogen to angiotensin I b. Angiotensin I is converted into angiotensin II c. Decrease in blood pressure or sympathetic nerves stimulate juztaglomerular cells d. Under influence of this hormone, Na' and H,O reabsorption occurs e. Increased blood volume raises blood pressure f. 2. Joyce, an accident victim, was admitted to the hospital 3 hours ago. Her chart indictes that she had been hemorrhaging at the scene of the accident. Joyce's nurse monitors her urinary output and notes that it is currently 12 ml/hour. (Normal output is 30-50 ml/hour.) Explain why a person in such severe stress is likely to have decreased urinary output (oliguria).

Answer 1

ANSWER :

1) CORRECT ORDER OF EVENTS TO RESTORE LOW BLOOD PRESSURE TO NORMAL LEVEL :-

Decrease in blood pressure or sympathetic nerves stimulates juxtaglomerular cells > renin is released and converts angiotensinogen to angiotensin I > angiotensin I is converted to angiotensin II > this substance acts as a vasoconstrictor and stimulates the aldosterone > under influence of this hormone Na+ and H2O reasbsorption occurs > increased blood volume raises blood pressure.

2) Joyce's decreased urinary output (12 ml/hour) is due to loss of neuronal control on the micturition process during stress condition.