NUR 300 Lecture Notes - Lecture 15: Parathyroid Gland, Extracellular Fluid, Adrenal Gland
Document Summary
Fluid = h2o that contains dissolved or suspended substances such as glucose, mineral salts and proteins. Health person: total body water is 50% to 60% of body weight. An infant has considerably more body fluid and ecf than an adult; more prone to fluid volume deficits. Gender and amout of fat cells affect body water; women and obese people have less body water. Transporting nurtients cells and waste from cells. Transporting hormones, enzymes, blood platelets and red & white blood cells. Facilitating cellular metabolism and proper cellular chemical functioning. Acting as a solvent for electrolytes and nonelectrolytes. 1% transcellular (cerebrospinal fluid, synovial fluid and pleural cavity fluid. Compunds that separate into ions (charges particles) when they dissolve in water. Cations: positively charge (na, k, ca, mg) Movement of fluid amoung its various compartments. Diffusion: passive movement of electrolytes/solutes without any additional energy. Active transport: moves electrolytes, requires energy (na/k pump)
