Describe how hemoglobin's saturation is related to oxygen delivery to tissue
What will be an ideal response?
Hemoglobin acts as a storage site for oxygen, removing dissolved oxygen from the plasma as soon as it enters the blood from the alveoli. When oxygen binds to hemoglobin it is removed from its dissolved state in the plasma. This maintains the concentration gradient between the alveoli and the blood so oxygen continues to move into the plasma until hemoglobin is completely saturated. At this point, 98.5% of the oxygen is bound to hemoglobin and the remaining 1.5% is dissolved in the plasma, measured by PO2.
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The conversion of the stimulus into an action potential to be interpreted by the brain is called
A) transformation. B) transduction. C) translation. D) transcription. E) transpotential.
Fowler's position is the best position for patients who are having trouble breathing.
Answer the following statement true (T) or false (F)
Curare
a. strongly binds to acetylcholine receptor sites b. inhibits acetylcholinesterase c. is found in pesticides and military nerve gases d. has characteristics a and b e. has characteristics b and c
Arrange the following in correct order
(1) cotransport molecule binds to sodium and glucose (2) establish sodium concentration gradient between tubular cells and tubular lumen (3) sodium and glucose moved into tubular cell (4) active transport of sodium from tubular cells to interstitial area A. 2, 1, 3, 4 B. 4, 2, 1, 3 C. 1, 3, 4, 2 D. 2, 4, 1, 3 E. 1, 2, 3, 4