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Actually it is two: sodium and potassium because they and their regulators are so intertwined. But a very, very simple answer to your question, water always follows sodium.
The principal ions in the ECF are sodium, chloride, and bicarbonate. The ICF contains an abundance of potassium, magnesium, and phosphate ions, plus large numbers of negatively charged proteins.
Despite the differences in the concentration of specific substances, the osmotic concentrations of the ICF and ECF are identical. Osmosis eliminates minor differences in concentration almost at once, because most cell membranes are freely permeable to water.
Sodium is the dominant cation in the ECF (Extra Cellular Fluid)
Potassium is the dominant cation in the ICF (Inter Cellular Fluid).
Two general rules concerning sodium balance and potassium balance are worth noting:
The Most Common Problems with Electrolyte Balance Are Caused by an Imbalance between Gains and Losses of Sodium Ions.
Problems with Potassium Balance Are Less Common, but Significantly More Dangerous than Are Those Related to Sodium Balance.
What else can I help you with?
Is the excretory system responsible for maintaining the volume and composition of most body fluids?
Yes, the excretory system plays a crucial role in maintaining the volume and composition of body fluids by filtering out waste and excess substances from the blood to be excreted as urine, thus helping to regulate electrolyte balance, pH levels, and fluid volume in the body.
Which structure occupies the largest volume in a mature plant cell?
In a mature plant cell, the structure that occupies the largest volume is the central vacuole. This large, membrane-bound organelle is filled with cell sap, which contains water, nutrients, and waste products. The central vacuole plays a crucial role in maintaining turgor pressure, supporting the cell's structure, and storing substances. Its size can occupy up to 90% of the cell's volume.
What is primarily the fluid matrix of blood?
The fluid matrix of blood is primarily plasma, which constitutes about 55% of total blood volume. Plasma is a yellowish liquid that contains water, electrolytes, proteins, hormones, and waste products. It serves as a transport medium for nutrients, gases, and other substances throughout the body. Additionally, plasma plays a crucial role in maintaining blood pressure and volume.
Is potassium found in the intracellular fluid?
Yes, potassium is the main cation (positively charged ion) found in the intracellular fluid of our body. It plays a crucial role in various cellular functions, such as maintaining cell volume and regulating the transmission of nerve impulses.
What is the principal cation of the ECF?
The principal cation of the extracellular fluid (ECF) is sodium (Na+). Sodium plays a critical role in maintaining fluid balance, nerve function, and muscle contraction in the body.
What is the electrolyte that plays the largest role in maintaining body fluid volume is?
sodium
What is the largest volume of water in the body is?
plasma
Which component of blood is fluid and necessary for maintaining adequate blood volume?
The fluid component of blood that is essential for maintaining adequate blood volume is plasma. Plasma is a yellowish liquid that makes up about 55% of total blood volume and consists mainly of water, electrolytes, proteins, hormones, and waste products. It plays a crucial role in transporting nutrients, hormones, and waste products throughout the body. Maintaining proper plasma volume is vital for overall circulatory health and proper organ function.
Is the excretory system responsible for maintaining the volume and composition of most body fluids?
Yes, the excretory system plays a crucial role in maintaining the volume and composition of body fluids by filtering out waste and excess substances from the blood to be excreted as urine, thus helping to regulate electrolyte balance, pH levels, and fluid volume in the body.
Large fluid-filled organelle in mature plant cells?
Central vacuole. It occupies most of the cell's volume and plays a role in storing water, maintaining turgor pressure, and storing nutrients and waste products.
Which structure occupies the largest volume in a mature plant cell?
In a mature plant cell, the structure that occupies the largest volume is the central vacuole. This large, membrane-bound organelle is filled with cell sap, which contains water, nutrients, and waste products. The central vacuole plays a crucial role in maintaining turgor pressure, supporting the cell's structure, and storing substances. Its size can occupy up to 90% of the cell's volume.
What is primarily the fluid matrix of blood?
The fluid matrix of blood is primarily plasma, which constitutes about 55% of total blood volume. Plasma is a yellowish liquid that contains water, electrolytes, proteins, hormones, and waste products. It serves as a transport medium for nutrients, gases, and other substances throughout the body. Additionally, plasma plays a crucial role in maintaining blood pressure and volume.
What is the primary extracellular fluid cation in the body?
The primary extracellular fluid cation in the body is sodium (Na+). It plays a crucial role in maintaining fluid balance, nerve function, and muscle contraction.
What is fluid in the blood that contains water nutrients proteins salts and hormones?
The fluid in the blood that contains water, nutrients, proteins, salts, and hormones is called plasma. Plasma makes up about 55% of total blood volume and serves as the medium for transporting various substances throughout the body, including waste products and immune cells. It plays a vital role in maintaining blood pressure and volume, as well as regulating body temperature.
Is potassium found in the intracellular fluid?
Yes, potassium is the main cation (positively charged ion) found in the intracellular fluid of our body. It plays a crucial role in various cellular functions, such as maintaining cell volume and regulating the transmission of nerve impulses.
The mineral that is found primarily in the intracellular fluid compartment is?
Potassium is the mineral that is found primarily in the intracellular fluid compartment. It plays a crucial role in maintaining fluid balance, nerve function, and muscle contractions within cells.
What is the principal cation of the ECF?
The principal cation of the extracellular fluid (ECF) is sodium (Na+). Sodium plays a critical role in maintaining fluid balance, nerve function, and muscle contraction in the body.
