A physiological ________ is a difference in chemical concentration, electrical charge, physical pressure, temperature, or other variables between one point and another.
A. membrane
B. feedback loop
C. barrier
D. imbalance
E. gradient
Answer: E
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You are learning to read electrocardiograms. You know that the patient you are examining has a pathology affecting the depolarization of his ventricles, therefore you're looking for a change in what portion of his EKG?
A. The QRS complex B. "The P wave" or "The T wave" but not "The QRS complex". C. The T wave D. The P wave E. None of these would be altered
Using the figure below, identify the labeled part.
1 Label A: ______________________________
2 Label B: ______________________________
3 Label C: ______________________________
4 Label D: ______________________________
5 Label E: ______________________________
6 Label F: ______________________________
7 Label G: ______________________________
8 Label H: ______________________________
9 Label I: ______________________________
10 Label J: ______________________________
11 Label K: ______________________________
12 Label L: ______________________________
Which of the following is considered a normal blood pH?
A) 7.50 B) 7.85 C) 7.40 D) 7.10
Vision is dependent upon ________.
A. thermoreceptors B. photoreceptors C. nociceptors D. chemoreceptors E. mechanoreceptors