Multiple Choice
What is the major cation found in the extracellular fluid?
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11. Nervous Tissue and Nervous System
Ions - Sodium and Potassium
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What is the major cation found in intracellular fluid?
A
Sodium (Na+)
B
Potassium (K+)
C
Calcium (Ca2+)
D
Magnesium (Mg2+)
Verified step by step guidance1
Understand the concept of intracellular fluid: Intracellular fluid (ICF) is the fluid contained within cells, making up about two-thirds of the body's total water content.
Identify the role of cations in the body: Cations are positively charged ions that play crucial roles in various physiological processes, including nerve impulse transmission and muscle contraction.
Review the common cations in the body: The major cations include sodium (Na+), potassium (K+), calcium (Ca2+), and magnesium (Mg2+).
Determine the primary cation in intracellular fluid: Potassium (K+) is the major cation found in intracellular fluid, as it is essential for maintaining cell membrane potential and cellular function.
Contrast with extracellular fluid: In contrast, sodium (Na+) is the major cation in extracellular fluid, highlighting the importance of potassium in intracellular environments.
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