BIOL 382 Lecture Notes - Lecture 26: Red Blood Cell, Glycogen, Hyperglycemia
Document Summary
Both glands located on top of kidney (sometimes called suprarenal gland) Reg salt (electrolyte) concentrations in extracellular fluids (sodium and potassium) Responsible for stim kidney tubule to reabsorb sodium ions and return them to bloodstream. Sodium uptake by kidneys raises water retention, blood volume and bp. Aldosterone release regulated by: renin - angiotensin pathway. Body resist stressors and reg metabolism of cells. Maintain normal blood volume and sugar levels. In stress, responsible for forming of glucose fats, amino acids and proteins (gluconeogenesis process) Cortical sex hormones (estrogens, progesterone and androgens- testosterone) Produced in small amounts by adrenal gland. Mostly male sex hormones w/ small amount of female hormones. Under control of sympathetic division of ans. Release highly oxygenated and glucose rich blood. Glucose release into blood by liver raises sugar levels in blood (hyperglycemia) Increase in metabolic rates results in enhanced conversion of glycogen to glucose. Constricts peripheral vessels -- rise in bp. Releases stored erythrocytes into blood from spleen.
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