The lumen of a hollow organ such as the stomach is considered to be part of the ________ environment.
A) external
B) internal
A) external
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Metabolic alkalosis may be caused by
A. respiratory obstructions. B. prolonged diarrhea. C. prolonged vomiting of only stomach contents. D. pneumonia.
Kittens should be weaned around _____ weeks
a. 2-4 c. 4-5 b. 3-4 d. 5-6
Transport of materials through an epithelial cell is called ________.
A. bulk transport B. paracellular transport C. transcellular transport D. exocytosis
A patient presents for her annual physical examination in seemingly good health
However, she is concerned about her heart because of family history, and you proceed to work up an examination of cardiovascular function. She has a blood pressure of 128/83 mm Hg, and echocardiography indicates that end-diastolic volume is 140 mL and end-systolic volume is 80 mL. A routine ECG is obtained and is shown below. From the echocardiographic data, the patient's stroke volume amounts to: A. 80 mL B. 70 mL C. 60 mL D. 50 mL E. 45 mL