TRANSPORTATION AND THE USE OF OXYGEN Flashcards

1
Q

Oxygen is distributed throughout the body to the
mitochondria of cells which are used in metabolic processes along with glucose to produce ___ and remove __

A

ATP
carbon dioxide

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2
Q

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 ___

A

respiration

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3
Q

the transportation of carbon dioxide in the blood takes 3 forms, namely:

A

carbonic ion (the largest)
dissolved
binds to Hemoglobin

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4
Q

The tissues of the body require a constant supply of
oxygen to be delivered to cells known as

A

Delivery Oxygen (DO2)

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5
Q

Respiration is divided into two, namely

A

external respiration (the exchange of O2 and
CO2 with outside air)

cellular respiration (intracellular metabolism consumes oxygen and produces CO2)

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6
Q

The air pressure at 1 atmosphere is ___

A

760 mmHg

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7
Q

the partial pressure of oxygen (PaO2) in free air is about ___

A

160 mmHg

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8
Q

The largest component of free air that is inhaled during inhalation is 21% ___ and 78% ___

A

oxygen

nitrogen

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9
Q

Oxygen is inhaled from free air and is sent
to the ___ in the cells through the
body’s ventilation and circulation systems

A

mitochondria

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10
Q

Most of the diffused oxygen will be bound by
___

A

Hb

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11
Q

each Hb molecule binds ___O2
molecules

A

4

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12
Q

The amount/fraction in percent of oxygen bound to Hb is represented in ___

A

oxygen saturation

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13
Q

In body tissues, the oxygen released to the
tissues causes the oxygen bound to
hemoglobin to ___ thus the blood
saturation in the veins will __.

A

decrease

decrease

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14
Q

The oxygen curve shifts to the right under
conditions of:

A

acidosis
hypercarbia
febris
increase in blood levels of 2,3 DPG

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15
Q

The oxygen curve shifts to the left under conditions of :

A

alkalosis
hypocarbia
hypothermia
decrease in 2,3 DPG

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16
Q

Oxygen, along with glucose, produces

A

36 ATP, carbon
dioxide (CO2), and water (H2O)

17
Q

If the body’s metabolism does not use oxygen, anaerobic metabolism will occur which only produces ___ and __

A

2 ATP
lactic acid.

18
Q

Normally, the body needs O2 ____ and produces ___ CO2 ml/minute

A

250 ml/minute

200

19
Q

Venous saturation is taken from the

A

pulmonary artery or central venous catheter

20
Q

Oxygen debt causes

A

anaerobic metabolism