Chapter 12: Water and Major Minerals Flashcards
Aldosterone
A endocrine steroid hormone secreted from the adrenal glands that act on the kidneys to control homeostatic electrolyte concentration and water balance. It raises normal blood pressure by promoting retention of sodium (salt) (and therefore water) and excretion of potassium ions
Renin
an enzyme catalyst, made by the kidney, that affects blood pressure by catalyzing the conversion of angiotensinogen to angiotensin I
Anions
Ions that carry a negative electric charge
Antidiuretic Hormone (ADH)
A protein hormone secreted by the anterior pituitary gland. It acts to increase blood pressure and prevents fluid excretion by the kidneys. additionally known as vasopressin
Calmodulin
A calcium-binding protein that regulates a range of cellular activities, like cellular division and proliferation
Cations
Ions that carry a positive electrical charge
Ciliary Action
wavelike motion of tiny capillary-like projections on some cells
Electrolytes
Substances that dissociate into charged particles (ions) when dissolved in water or other solvents and therefore become capable of conducting an electrical current. The terms electrolyte and ion are generally used interchangeably
Fibrin
A stringy, insoluble protein that is the ultimate product of the blood-clotting process
Heat capacity
Of energy needed to raise the temperature of a substance one-degree celsius
Hydrogen Bonds
Noncovalent bonds between hydrogen and an atom, usually oxygen, in another molecule
Hypercalcemia
Abnormally high concentrations of calcium within the blood
Hypercellular obesity
obesity because of an above-average number of fat cells
Hypercholesterolemia
The presence of greater than normal amounts of sterol within the blood
Hyperglycemia
Abnormally high concentrations of glucose within the blood
Hyperkalemia
Abnormally high potassium concentrations within the blood
Hyperkeratosis
Excessive accumulation of the protein keratin that produces rough and bumpy skin, most ordinarily affecting the palms and soles, also as flexure areas (elbows, knees, wrists, ankles). It will have an effect on wet epithelial tissues and impair their ability to secrete mucus. additionally known as hyperkeratinization
Hypermagnesemia
an abnormally high concentration of magnesium within the blood
Hypernatremia
Abnormally high sodium concentrations within the blood because of increased renal retention of sodium or rapid intake of large amounts of salt
Hyperparathyroidism
Excessive secretion of parathyroid hormone, that alters calcium metabolism
Hyperphosphatemia
Abnormally high phosphate concentration within the blood