Organs that recondition the blood normally receive considerably more of the cardiac output than is necessary to meet their metabolic needs
Indicate whether the statement is true or false
T
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In the resting stage, a muscle with the word "rectus" in its name has straight fascicles.
Answer the following statement true (T) or false (F)
Hydrogen ion secretion is coupled with:
A) bicarbonate ion reabsorption. B) phosphate reabsorption. C) a resulting decrease in blood pH. D) calcium ion secretion.
Acting alone, epinephrine and thyroid hormone each stimulates release of only a small amount of fatty acids from adipose cells
In the presence of thyroid hormone, epinephrine causes a much more substantial release of fatty acids from the cells. What is the term describing the effect of thyroid hormone on epinephrine's actions? A. antagonistic B. agonistic C. permissive D. direct E. paracrine
Veins
A. may contain valves and are lined with endothelium. B. have thick, many layered walls. C. are described as strong, rigid vessels that always carry oxygenated blood. D. carry blood under very high pressure. E. carry blood away from the heart.