TRANSPORTATION AND THE USE OF OXYGEN Flashcards
Oxygen is distributed throughout the body to the
mitochondria of cells which are used in metabolic processes along with glucose to produce ___ and remove __
ATP
carbon dioxide
The exchange of oxygen as a metabolic material for the body and carbon dioxide as the end product of the body’s metabolism is done through a process called ___
respiration
the transportation of carbon dioxide in the blood takes 3 forms, namely:
carbonic ion (the largest)
dissolved
binds to Hemoglobin
The tissues of the body require a constant supply of
oxygen to be delivered to cells known as
Delivery Oxygen (DO2)
Respiration is divided into two, namely
external respiration (the exchange of O2 and
CO2 with outside air)
cellular respiration (intracellular metabolism consumes oxygen and produces CO2)
The air pressure at 1 atmosphere is ___
760 mmHg
the partial pressure of oxygen (PaO2) in free air is about ___
160 mmHg
The largest component of free air that is inhaled during inhalation is 21% ___ and 78% ___
oxygen
nitrogen
Oxygen is inhaled from free air and is sent
to the ___ in the cells through the
body’s ventilation and circulation systems
mitochondria
Most of the diffused oxygen will be bound by
___
Hb
each Hb molecule binds ___O2
molecules
4
The amount/fraction in percent of oxygen bound to Hb is represented in ___
oxygen saturation
In body tissues, the oxygen released to the
tissues causes the oxygen bound to
hemoglobin to ___ thus the blood
saturation in the veins will __.
decrease
decrease
The oxygen curve shifts to the right under
conditions of:
acidosis
hypercarbia
febris
increase in blood levels of 2,3 DPG
The oxygen curve shifts to the left under conditions of :
alkalosis
hypocarbia
hypothermia
decrease in 2,3 DPG