How many liters of blood are distributed between the pulmonary and systemic circuits in a "typical" person? Assume 20% of the blood is in the lungs at any moment. If the cardiac output is 5 L/min, how long will it take a drop of blood to flow from the right ventricle to the left ventricle?
What will be an ideal response?
There are about 5 liters of blood in a 70 kg man. If 20% of the blood is in the lungs, then 5 × 0.2 = 1 liter of blood in the lungs.
1 L × 1 min/5 L × 60 sec/1 min × 1 min/60 sec = 12 seconds.
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1) The genetic information is coded in DNA by the regular alternation of sugar and phosphate molecules. 2) A process by which large particles may be taken into the cell for food, protection of the body, or for disposing of old or dead cells is called phagocytosis. 3) The orderly sequence of the phases of mitosis is prophase, metaphase, anaphase, and telophase. 4) Diffusion is always from areas of greater to areas of lesser concentration. 5) Facilitated diffusion always requires a carrier protein.
What type of lung sound is similar to a musical note?
What will be an ideal response?
The endoneurium
A. bundles axons into fascicles. B. surrounds nerve cell bodies. C. surrounds individual axons and their Schwann cells. D. surrounds nerve tracts in the spinal cord. E. bundles fascicles into nerves.
Which of the following hormones has the broadest range of target organs?
a. ACTH b. somatotropin c. ADH d. TSH e. FSH