NURS133: Introducing Physiology - Body Fluid Compartments and Exchange

A comprehensive set of vocabulary flashcards based on key concepts in the NURS133 lecture on Body Fluid Compartments and Exchange.

Solvent

A substance that dissolves a solute, forming a solution.

Solute

A substance that is dissolved in a solvent to form a solution.

Solution

A homogeneous mixture composed of two or more substances.

Concentration Gradient

A difference in the concentration of a substance across a space.

Intracellular Fluid

Fluid found inside cells, comprising 67% of total body water.

Extracellular Fluid

Fluid located outside of cells, including interstitial fluid and plasma.

Oedema

The accumulation of excess water in tissues.

Active Transport

The movement of molecules across a membrane against a concentration gradient, requiring energy.

Passive Transport

The movement of molecules across a membrane without the use of energy, relying on concentration gradients.

Diffusion

The passive movement of substances from an area of high concentration to an area of low concentration.

Osmosis

The movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Facilitated Transport

Transport of molecules across a membrane via specialized proteins without energy expenditure.

Sodium-Potassium Pump

An active transport mechanism that moves sodium ions out of and potassium ions into cells.

Endocytosis

A process by which cells engulf particles too large to pass through the membrane.

Exocytosis

The process of expelling material from a cell.

Secondary Active Transport

Transport that indirectly uses energy created by primary active transport to move substances.