Answer the following statement(s) true (T) or false (F)
1. The digestive system performs the mechanical and chemical breakdown of ingested foods.
2. The digestive system helps glucose enter all body cells.
3. Teeth are an accessory organ of the digestive system.
4. Teeth are an organ of digestion.
5. Saliva has an enzyme that begins to break down fats in the mouth.
1. True
2. False
3. True
4. False
5. False
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Which of the following disorders is caused by abnormal permeability of the RBC membrane?
a. Hereditary elliptocytosis b. Hereditary spherocytosis c. PNH d. Hereditary dehydrated stomatocytosis
Calculate the pulmonary shunt fraction using the following data: Pb = 757 mm Hg; hemoglobin (Hb) = 11 g/dL; FIO2 = 0.5; PaO2 = 86 mm Hg; PaCO2 = 40 mm Hg; SaO2 = 91%; = 40 mm Hg; = 71%; respiratory exchange quotient (R) = 0.8
a. 19% b. 23% c. 26% d. 32%