Transcellular compartment

Definition

The transcellular compartment is a subset of extracellular fluid found within epithelial-lined spaces. It includes fluids such as cerebrospinal fluid, synovial fluid, and aqueous humor.

5 Must Know Facts For Your Next Test

1. Transcellular fluid accounts for approximately 2-3% of the total body water.
2. It is distinct from interstitial and intravascular fluids in the extracellular space.
3. Examples include cerebrospinal fluid, pleural fluid, peritoneal fluid, and synovial fluid.
4. Transcellular compartments play crucial roles in lubrication, protection, and nutrient transport in specific areas.
5. Alterations in transcellular fluid can significantly impact homeostasis and are relevant in various clinical conditions.

Review Questions

• What percentage of total body water does the transcellular compartment account for?
• Name three examples of transcellular fluids.
• Why is the transcellular compartment important for homeostasis?

Related terms

Interstitial Fluid:

Fluid that surrounds tissue cells and makes up a large part of the extracellular fluid.

Intravascular Fluid:

Fluid contained within blood vessels such as plasma.

Homeostasis:

The body's ability to maintain stable internal conditions despite changes in external environments.