Bhajan Singh Bains
S2620456
Laboratory: Thursday 1 pm to 4 pm
Group 6
Tutor: Mr. Grant
Course convener: Dr Suzie Owens
Introduction
The purpose of this lab appellative is to study the effects of exercise, caffeine and salt (sodium chloride) on the kidneys. The criterion of piddle produced is measured e very twenty minutes to assign whether the salt, caffeine and exercise developments or decreases urine take. The mechanism of live up to involved in the maintenance of homeostasis by the kidneys and the results obtained in the laboratory experiment would be discussed in detail while answering the ten questions.
The nephritic excretion systems of angiotensin, ADH and aldosterone are very crucial in maintaining blood pressure. Vascular volume is keep by water excretion or water reabsorption by the kidneys. Renin is an enzyme inflammationd from renal arterioles when BP drops. Renin converts angiotensinogen into angiotensin I. Angiotensin I is wherefore converted to angiotensin II by principal (angiotensin converting enzyme). ACE is present in the endothelium of heart, brain, skeletal muscles, kidneys and pulmonary vessels. Angiotensin II is a very powerful vasoconstrictor and therefore has a great effect on renal BP by enhancing renal flow and urine production.
Angiotensin II also triggers the release of aldosterone which acts on renal tubules to increase reabsorption of water and sodium via the sodium potassium pump.
1. Effects of exercise on urine production.
The results obtained from this experiment indicate that there is minimal increase in urine production for the first forty minutes. The urine production after sixty minutes showed a dramatic increase (approximately 10 mls/minute). There is a slight decrease in urine production after 80 minutes (7 ml/min) and after 100 minutes (7.5 ml/min)
Urine output
(Mls/min)
metre (mins)
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