26.1 Body fluids and fluid compartments  (Page 2/14)

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Extracellular fluid

The ECF accounts for the other one-third of the body’s water content. Approximately 20 percent of the ECF is found in plasma. Plasma travels through the body in blood vessels and transports a range of materials, including blood cells, proteins (including clotting factors and antibodies), electrolytes, nutrients, gases, and wastes. Gases, nutrients, and waste materials travel between capillaries and cells through the IF. Cells are separated from the IF by a selectively permeable cell membrane that helps regulate the passage of materials between the IF and the interior of the cell.

The body has other water-based ECF. These include the cerebrospinal fluid that bathes the brain and spinal cord, lymph, the synovial fluid in joints, the pleural fluid in the pleural cavities, the pericardial fluid in the cardiac sac, the peritoneal fluid in the peritoneal cavity, and the aqueous humor of the eye. Because these fluids are outside of cells, these fluids are also considered components of the ECF compartment.

Composition of body fluids

The compositions of the two components of the ECF—plasma and IF—are more similar to each other than either is to the ICF ( [link] ). Blood plasma has high concentrations of sodium, chloride, bicarbonate, and protein. The IF has high concentrations of sodium, chloride, and bicarbonate, but a relatively lower concentration of protein. In contrast, the ICF has elevated amounts of potassium, phosphate, magnesium, and protein. Overall, the ICF contains high concentrations of potassium and phosphate ( ${\text{HPO}}_{4}^{2-}$ ), whereas both plasma and the ECF contain high concentrations of sodium and chloride.

Watch this video to learn more about body fluids, fluid compartments, and electrolytes. When blood volume decreases due to sweating, from what source is water taken in by the blood?

Most body fluids are neutral in charge. Thus, cations, or positively charged ions, and anions, or negatively charged ions, are balanced in fluids. As seen in the previous graph, sodium (Na + ) ions and chloride (Cl - ) ions are concentrated in the ECF of the body, whereas potassium (K + ) ions are concentrated inside cells. Although sodium and potassium can “leak” through “pores” into and out of cells, respectively, the high levels of potassium and low levels of sodium in the ICF are maintained by sodium-potassium pumps in the cell membranes. These pumps use the energy supplied by ATP to pump sodium out of the cell and potassium into the cell ( [link] ).

what is the consequence of performing CPR on a functioning heart.
The central part of the body
i thought a cell is the fuctional unit of an orgarnism.
what is the name for inflammation of middle ear?
otitis media
Chidiebere
Explain the major features and properties of the cell membrane
contants ofa lipid bilayers w the enbedded proteins it is faction of the cell membaren
bariise
it is made up of protein,fat and a small portion of carbohydrates. it is semipermeable but impermeable to uncharged water molecules.
Chidiebere
Describe an experiment to verify the law of constant composition
Ssekamatte
thanks
Momoh
amazing the exprement is hard to set up can you please help us describe it for us?
Momoh
thx
Robina
hi guys
unimarwat
blowing your colon straight outa ya ass because you ate 4lbs of uncooked fish the night prior
Noah
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vertebral arteries and cerebral arteries
Chidiebere
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Chidiebere
structure of a cell
Robina
pelvic cavity contents?
ilium ,ischium ,pubis
but that is the three parts of the hip bone
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Describe the muscular skeletal system in terms of definition.. Skeleton Apendicular skeleton Axial skeleton Joints
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unimarwat
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it's a organs and bouns reading
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Cutting Up
Nonie
Cutting Up
Nonie
to dissect
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what usually cause blood pressurae
too much salt in the diet
Abuusu
older age
Abuusu
Even family history of high blood pressure
Abuusu
yes
Yaqub
too much salt in the diet
Yaqub
Richard
smoking and too much alcohol consumption
Annu
obesity can also cause hypertension
Yaqub
high temperature of the body high salt of the body
Drs
how does the temperature affect the blood pressure?
Chidiebere
sex
Onavwie
What sex.?
Male
Vikas
i mearnt gender,there's increased blood pressure in male than female
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guys, read the question, involuntary pumping of heart causes the blood pressure in the arteries, he has not asked about high or low BP.
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explain the cellular mechanism that produces tetanus and summation
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demonstrate the fluid replacement in the body
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isbii