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HMX Physiology Exam Study Guide with Complete Solutions

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HMX Physiology Exam Study Guide with Complete Solutions Patm - Answer️️ -760 mm Hg (mercury) PN2 (partial pressure of nitrogen in air) - Answer️️ -Patm * PN2 (760 * 0.78) = 592.8 mm Hg PO2 (partial pressure of oxygen in air) - Answer️️ -Patm * PO2 (760 * 0.21) = 160 mm Hg Alveolu...

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  • August 29, 2024
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©SOPHIABENNET@2024-2025 Friday, August 23, 2024 10:49 AM




HMX Physiology Exam Study Guide with
Complete Solutions

Patm - Answer✔️✔️-760 mm Hg (mercury)

PN2 (partial pressure of nitrogen in air) - Answer✔️✔️-Patm * PN2 (760 *
0.78) = 592.8 mm Hg

PO2 (partial pressure of oxygen in air) - Answer✔️✔️-Patm * PO2 (760 * 0.21)
= 160 mm Hg

Alveolus - Answer✔️✔️-tiny air sacs of lungs which allow for rapid gas
exchange

Atmospheric pressure - Answer✔️✔️-pressure exerted by weight of
atmosphere

Boyle's Law - Answer✔️✔️-P x V = k. Inverse relationship between pressure
and volume for fixed amount of gas at constant temperature. Pressure *
Volume = Constant K

Capillaries - Answer✔️✔️-tiny, branching blood vessels that form a network
between arterioles and venules

Hemoglobin (Hgb) - Answer✔️✔️-protein in blood cell that binds O2.
Normal level: 12 g/dL. iron rich protein that helps RBCs carry O2 from
lungs to rest of body. 1g of Hgb carries 1.39 mL




1

, ©SOPHIABENNET@2024-2025 Friday, August 23, 2024 10:49 AM




Partial Pressure - Answer✔️✔️-pressure that would be exerted by one of the
gases in a mixture if it occupied the same volume on its own

Partial pressure of a gas dissolved in liquid - Answer✔️✔️-= partial pressure
in air above water

Pgas - Answer✔️✔️-= Fgas (friction of gas) x Ptotal

Dalton's law - Answer✔️✔️-Ptotal = P1 + ... + Pn. In a mix of non-reacting
gases, the total pressure exerted = sum of partial pressures of individual
gases

Total Oxygen in Blood - Answer✔️✔️-= O2 dissolved + O2 bound to
hemoglobin

Kidneys - Answer✔️✔️-conserve water, filter toxins or byproducts of
metabolism, getting rid of excess dietary fluid and salt

Concentration gradient - Answer✔️✔️-gradual change in concentration of
solutes present in a solution between 2 regions

Dialysate - Answer✔️✔️-part of mixture which passes through membrane in
dialysis. Solution of pure water, electrolytes, and salt, like bicarbonate and
sodium

Dialysis kidney - Answer✔️✔️-process of removing waste products and
excess fluid from body




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, ©SOPHIABENNET@2024-2025 Friday, August 23, 2024 10:49 AM




Edema - Answer✔️✔️-puffiness caused by excess fluid trapped in body's
tissues. Increased hydrostatic pressure, decreased oncotic pressure

extracellular space - Answer✔️✔️-intravascular + intrastitial space. 1/3 of
body.

glomerulus - Answer✔️✔️-cluster of nerve endings, spores, or small blood
vessels (cluster of capillaries around end of kidney tubule), where waste
products are filtered from blood

hydrostatic force/pressure - Answer✔️✔️-fluid pressure. water moves from
high hydrostatic pressure to low hydrostatic pressure

interstitial pressure - Answer✔️✔️-surrounds tissue cells. filled with fluid.

intravascular space - Answer✔️✔️-blood vessels. 1/3 of body fluid in
extracellular is in here

intracellular space - Answer✔️✔️-space within organism's cells. 2/3 of total
body water of humans found here

oncotic force/pressure - Answer✔️✔️-osmotic consequence of having a
differential concentration of protein across the wall of a capillary

osmotic force/pressure - Answer✔️✔️-water moves from areas of low solute
concentration to areas of high solute concentration. Difference in
concentration. Fluid movement across cell walls.




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