Test 2 Chapter 2 Flashcards
Aldosterone
A steroid hormone made by the adrenal cortex. It helps control the balance of water and salts in the kidney by keeping sodium in and releasing potassium from the body. Too much aldosterone can cause high blood pressure and a build-up of fluid in body tissues.
Antidiuretic Hormone
A hormone that helps blood vessels constrict and helps the kidneys control the amount of water and salt in the body. This helps control blood pressure and the amount of urine that is made.
Ascites
condition in which fluid collects in spaces within your abdomen.
Atrial Natriuretic Peptide
blood sodium levels and pressure are increased, ANP is secreted from the heart. It binds to its receptor in the kidney and blood vessels, and promotes salt excretion, lowers blood volume and relaxes the vessel.
Capillary Permeability
capability of capillary walls to allow the selective flow of substances and cells into and out of the vessel
Hydrostatic Pressure
Hydrostatic pressure is the “pushing” force on water due to the presence of more fluid in one region than another. In general, larger fluid volumes generate higher hydrostatic pressure. Osmotic pressure is the “pulling” force on water due to the presence of solutes in solution.
Hypertonic/Hyperosmolar
Too much Na in the extracellular, water from inside the cell leaves to the outside causing shrinkage
Hypovolemia
low extracellular fluid volume, generally secondary to combined sodium and water loss.
Hypotonic/Hypoosmolar
Not enough Na in the extracellular, water follows Na in the cell and bursts
Hypervolemia
a condition where you have too much fluid volume in your body. pregnant, and people with cardiac and pulmonary issues usually have hypervolemia
Interstitial Fluid
Fluid found in the spaces around cells
Intravascular Fluid
whole blood volume and also includes red blood cells, white blood cells, plasma, and platelets
Laryngospasm
transient and reversible spasm of the vocal cords that temporarily makes it difficult to speak or breathe. T
Nonvolatile Metabolic Acids
an acid produced in the body from sources other than carbon dioxide, and is not excreted by the lungs.
Osmoreceptor
An osmoreceptor is a sensory receptor primarily found in the hypothalamus of most homeothermic organisms that detects changes in osmotic pressure.