Blood vessels enter and exit from the ________ of the heart.
A. auricles
B. apex
C. inferior aspect
D. base
E. trigone
Answer: D
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Which build is slight with a long, narrow, and shallow thorax that is wider more superiorly?
A. Asthenic B. Hypersthenic C. Hyposthenic D. Sthenic
When the kidney secretes hydrogen ions:
a. the pH of the urine rises b. sodium ions are added to the urine also c. the bicarbonate ion is added to the urine also d. none of the above
If a strong acid were to add H+ to the intracellular fluid, the effect would most likely be buffered, because
A. HPO42- would act as a weak acid and donate an H+ to become PO4-. B. H2PO4- would act as a weak acid and accept an H+ to become H3PO4-. C. HPO42- would act as a weak base and accept an H+ to become H2PO4-. D. PO4 would act as a strong base and accept an H+ to become HPO4.
Under normal conditions, which of the following blood cell types can leave vessels and migrate into surrounding tissues.
Red blood cells white blood cells both