1. Complete the table. absorptive state Post-absorptive state Predominant hormon

Question

1. Complete the table. absorptive state Post-absorptive state Predominant hormone Hormone made by Hormone release stimulated b Hormone release inhibited by Fate of carbs/ proteins/fats in liver Fate of carbs/proteins/fats in skeletal muscle 2. Gravity would pull blood to the bottom of the upright lung. How would it affect V and Q in the lung? Is a higher V/Q ratio an indication of more efficient or less efficient gas exchange? What would it mean if the ratio is less than one? One? More than one?

Explanation / Answer

1.

2. Gravity pulls the blood to the bottom of the upright lungs that increases the V and Q of lungs. Thus the amount of air enter into lungs and amount of blood circulation in the lungs is greater in the lower part of lungs compared to middle and upper zone.

The increased V/Q ratio indicates less efficient of gas exchange. In such state paCo2 is Zero and PaO2 is 150mm hg.

V/Q ratio

Absorptive state post absorptive state Predominant hormone insulin glucagon Hormone made by beta cells of islet's of Langer han's of pancreas alpha cells of islet's of Langer Han's Hormone release stimulated by increased nutrients in the blood when blood insulin levels falls low Hormone release inhibited by somatostatin and also when the blood glucose falls below 70?g/100ml insulin and somatostatin Fate of carbs/proteins/fat in the liver anabolism increases catabolism increases Fate of carbs/proteins/fats in skeletal muscle low anabolism high catabolism Fate of carbs/proteins/fat in adipose tissue storage will be takes places glycogenolysis will be takes place

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