Describe the hormones that increase cardiac output
What will be an ideal response?
Hormones that increase cardiac output include epinephrine, norepinephrine, and thyroid hormone. The effects of epinephrine and norepinephrine produced by the adrenal medulla are identical to the effects of these chemicals produced by the sympathetic nervous system—they increase both heart rate and contractility. The effects of thyroid hormone, which is the body's primary regulator of the metabolic rate, are less direct. It causes the cardiac muscle cells to produce more receptors for epinephrine and norepinephrine, which allows these two chemicals to have a greater impact on cardiac output.
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Facilitated diffusion differs from ordinary diffusion in that
A) facilitated diffusion consumes ATP. B) facilitated diffusion moves molecules from an area of lower concentration to an area of higher concentration. C) the rate of facilitated diffusion is limited by the number of available carrier proteins. D) facilitated diffusion never eliminates the concentration gradient. E) facilitated diffusion does not rely on carrier proteins.
Histamine release results in increased airway resistance and decreased airflow
Indicate whether this statement is true or false.
A combining form for "bone" is:
A) oste/o B) chondr/o C) arthr/o D) bon/o
All hormones are
A) proteins. B) inorganic compounds. C) steroids. D) organic compounds.