Which of the following body fluids is classified as transcellular fluid?

• A Interstitial fluid in skeletal muscle
• B Plasma
• C Lymph in peripheral vessels
• D Cerebrospinal fluid ✓

Explanation

Transcellular fluid is the small fraction of extracellular fluid separated from plasma and interstitial fluid by an epithelial layer. It includes cerebrospinal fluid, synovial fluid, intraocular fluid, and pleural/peritoneal fluids. Interstitial fluid, plasma, and lymph are all part of the bulk extracellular compartment, not transcellular.

Reference: Guyton and Hall Textbook of Medical Physiology, 14th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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