Discuss three of the roles of the kidneys in maintaining our health
?The kidneys help to regulate blood pressure by secreting the enzyme renin. Renin catalyzes the formation of angiotensin I from the plasma protein angiotensinogen. In the lungs and elsewhere, angiotensin I is converted to angiotensin II, a potent vasoconstrictor that narrows the diameters of arterioles and thereby raises blood pressure. Angiotensin II also stimulates the release of aldosterone, an adrenal hormone that induces the kidneys to increase reabsorption of sodium and water; this increases plasma volume, which raises blood pressure. The kidneys produce the hormone erythropoietin, which stimulates the production of red blood cells in the bone marrow. The kidneys convert vitamin D to its active form, thereby helping to regulate calcium balance and bone formation.
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Clinically severe obesity is also known as
a. morbid obesity. b. metabolic syndrome. c. leptin-resistant obesity. d. psychological-resistant syndrome. e. Prader-Willi syndrome
Karl is exercising on the elliptical machine at the gym. As the intensity of his physical activity increases, his oxygen consumption will ________.
A. stay the same B. decrease C. increase
Define confounding factors. List possible confounding factors in an epidemiological study
In the context of program planning, the question "how will we know that change has occurred" corresponds to which SMART objective?
a. Specific b. measurable c. Achievable d. Relevant