Cardiac output can be increased by all of the following except
A) decreasing ejection fraction.
B) decreasing end systolic volume.
C) increasing stroke volume.
D) increasing ejection fraction.
E) increasing heart rate.
A
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Water reabsorption
a. cannot occur from any portion of the nephron in the absence of vasopressin. b. occurs to the greatest extent in the proximal convoluted tubule. c. is under vasopressin control in the proximal tubule. d. is under vasopressin control in the distal and collecting tubules. e. both (b) and (d) above.
Which of the following statements about TIAs and CVAs is true?
A) A CVA usually results from spasms of diseased cerebral arteries. B) TIAs are often early warning signs of an impending stroke. C) TIAs are the result of brain tissue death caused by ischemia. D) TIAs often result in blindness and paralysis.
The hepatopancreatic ampulla is formed by the union of the
A. hepatic ducts and cystic ducts. B. pancreatic duct with the lacteals. C. greater duodenal papilla with the lesser duodenal papilla. D. cystic duct and interlobular duct. E. common bile duct and pancreatic duct.
This figure shows the bones of the ankle and foot. Which bone does the number 1 indicate?
A. Proximal phalanx of the hallux B. Distal phalanx of the pollex C. Middle phalanx of the hallux D. Distal phalanx of the hallux E. Proximal phalanx of the pollex