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Unit 5 Vocab
| Question | Answer |
|---|---|
| the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy. | Active transport |
| caused when different ions cross the neuron membrane. A stimulus first causes sodium channels to open. Because there are many more sodium ions on the outside, and the inside of the neuron is negative relative to the outside, sodium ions rush into the neur | action potential |
| hormone that helps your kidneys manage the amount of water in your body. released from pituitary gland based on signals from hypothalamus; take in water | ADH antidiuretic |
| Detects the water levels of blood | hypothalamus |
| causes sodium conservation and water retention and excretes potassium; produced in adrenal gland | Aldosterone |
| negatively charged ion | anion |
| positively charged ion | cation |
| a receptor sensitive to changes in pressure | baroreceptors |
| a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. does not diffuse easily | calloid |
| pull water into the circulatory system. | calloid osmotic pressure |
| process that out body makes during shock, these are short term, long term and last term | compensatory mechanisms |
| spreading evenly; high to low concentration | diffusion |
| is the spontaneous net movement of water across a semipermeable membrane from a region of low solute concentration to a more concentrated solution | osmosis |
| compounds that separate into ions when in a solution | electrolyte |
| outside the cell | extracellular |
| passage of a solution through a semipermeable membrane from high to low | filtration |
| excreting more that what you take in | fluid volume deficit |
| decreased blood volume, more specifically plasma | Hypovolemia |
| too much fluid in the blood | fluid volume excess |
| the net driving force which pushes fluid into tissue spaces and out of vascular sites | filtration pressure |
| greater concentration than body fluids | hypertonic |
| lower concentration than body fluids | hypotonic |
| water that passes through the skin and is lost by evaporation | insensible fluid loss |
| between the cells | interstitial |
| fluid inside the cells | intracellular |
| osmotic concentration equal to the fluid of the body | isotonic |
| occurs when the body produces excessive quantities of acid or when the kidneys are not removing enough acid from the body | metabolic acidosis |
| When the PH in your body gets to low | Acidosis |
| unit used to give concentration of an electrolyte solution | milliequivalent |
| a hormone system that regulates blood pressure and fluid balance | RAA system |
| a condition that occurs when the lungs can't remove enough of the carbon dioxide (CO2) produced by the body | respiratory acidosis |
| it can be seen, felt, and measured | sensible fluid loss |
| It is the most abundant protein in human blood plasm | serum albumin |
| The process of moving sodium and potassium ions across the cell membrane | sodium potassium pump |
| occurs when too much fluid moves from the intravascular space (blood vessels) into the interstitial or "third" space-the nonfunctional area between cells | third spacing |
| the resistance that must be overcome to push blood through the circulatory system and create flow | vascular resistance |
Created by:
anelson3113