Fluid balance The two major fluid compartments of the body consist of the ------
ID: 3519838 • Letter: F
Question
Fluid balance
The two major fluid compartments of the body consist of the ---------ECF or ICF-----------, the fluid outside of the cells, and the ------ECF or ICF----------, the fluid within the cells. Of these, the ______ECF or ICF_____ is the larger proportion, representing roughly 65% of the body's fluid composition.
The ____ECF or ICF_______ is further subdivided into two main types of fluid; interstitial fluid (which is roughly ------- % of this compartment) and plasma (which is roughly -----% of this compartment).
Recall that all substances entering and leaving the body must pass through the ECF. Thus, regulating the fluid balance of the ECF is vital to maintaining homeostasis throughout the body. Specifically, the body regulates fluid balance in the ECF by regulating its volume and osmolarity.
ECF volume is important for __________(1)________ and is primarily maintained by controlling ------(2)--------- balance through -----(3)--------.
(1) avoiding hyper- or hypotonicity
(2) glucose, salt, or water
(3) vasopressin or aldosterone
Which of the following outcomes would occur if the ECF volume decreased significantly?
a) A drop in arterial blood pressure would occur
b) an increase in arterial blood pressure would occur
c) body cells would swell due to hypotonicity
d) body cells would shrink due to hypertonicity
ECF osmolarity is important for _______(4)__________ and is primarily maintained by controlling _____(5)_____ balance through ____(6)_________.
(4) avoiding hyper- or hypotonicity
(5) glucose, salt, or water
(6) vasopressin or aldosterone
Which of the following outcomes would occur if ECF osmolarity increased significantly?
a. Body cells would shrink due to hypertonicity.
b. a drop in arterial blood pressure would occur.
c. an increase in arterial blood pressure would occur.
d. body cells would swell due to hypotonicity.
Explanation / Answer
The two major fluid compartments of the body consist of the Extracellular fluid and the intracellular fluid (ICF). Extracellular fluid (ECF), the fluid outside of the cells, and the intracellular fluid (ICF) is the fluid within the cells. Of these, the intracellular fluid (ICF) is the larger proportion, representing roughly 65% of the body's fluid composition.
Explanation: The intracellular fluid (ICF) compartment is the system that includes all fluid enclosed in cells by their plasma membranes. Extracellular fluid (ECF) surrounds all cells in the body.
The ECF is further subdivided into two main types of fluid; interstitial fluid (which is roughly 80 % of this compartment) and plasma (which is roughly 20 % of this compartment).
Explanation: Extracellular fluid has two primary constituents: the fluid component of the blood (called plasma) and the interstitial fluid (IF) that surrounds all cells not in the blood.
ECF volume is important for (1) hypotonicity and is primarily maintained by controlling (2) water balance through (3) aldosterone.
Explanation: Aldosterone from the adrenal gland acts on the kidney to promote sodiumreabsorption, thus preventing its loss in the urine.
Which of the following outcomes would occur if the ECF volume decreased significantly?
Correct option: d) body cells would shrink due to hypertonicity
Explanation: A hypertonic ECF will cause cells to shrink; a hypotonic ECF will cause cells to swell
Which of the following outcomes would occur if ECF osmolarity increased significantly?
Correct option: d. body cells would swell due to hypotonicity.
Explanation: A hypertonic ECF will cause cells to shrink; a hypotonic ECF will cause cells to swell
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