Lung Capacity

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Lung Capacity
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Tidal Volume

• TV The amount of air going into or out of the
  lungs on single breath.

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Expiratory reserve Volume

• ERV Air left to be exhaled AFTER normal
  breathing (exhalation)

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Inspiratory Reserve volume

• IRV The amount of air you can take in after
  tidal volume.

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Vital Capacity

• VC Total amount of air you can move.
• VC TV IRV ERV

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Inspiratory Capacity

• IC How much air you bring in
• IC TV IRV

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Residual Volume

• RV What is left in the lungs that you can not
  move!

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DEAD SPACE

• Air in passage way that never makes it to gas
  exchange.
• TV 500 ml about 150 ml is dead.

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IRV
ERV
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FULL OF HOT AIR

• Lets see who has the largest lungs shall we? 449

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External respiration

• Getting air from the atmosphere into the blood.
  (gas to dissolve into liquid)

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Hemoglobin (Hb)

• Oxygen is not very soluble, so it binds to the
  carrier hemoglobin on the RBC.

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Hemoglobin

• Hb O2 ? HbO2 (oxyhemoglobin)

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Hemoglobin

• The hemoglobin contains iron, this is where O2
  attaches.
• Iron ? Hb ? RBC

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Decompression Sickness

• Divers go to deep for too long. Extra pressure
  FORCES nitrogen to dissolve into blood.

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Decompression Sickness

• IF they come up too fast nitrogen forms bubbles
  in joints the bends

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CO poisoning

• Carbon monoxide colorless, odorless,
• Attached to Hb before oxygen does and you
  suffocate

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TABLE Time

• Find the percentage of Oxygen and Carbon dioxide
  that we use or expel.

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TABLE TIME Oxygen
Atmosphere 160 mm Hg
Alveoli 100 mm Hg
Capillary 40 mm Hg
Tissue/Cells 20 mm Hg
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TABLE TIME Oxygen
Atmosphere 21
Alveoli 13
Capillary 5
Tissue/Cells 3
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TABLE TIME CO2
Atmosphere .3 mm Hg
Alveoli 40 mm Hg
Capillary 45 mm Hg
Tissue/Cells 50 mm Hg
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TABLE TIME CO2
Atmosphere .0003
Alveoli 5.3
Capillary 6
Tissue/Cells 6.6
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Internal Respiration

• Getting blood to tissues and cells.

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Saturation

• How much of the hemoglobin is carrying oxygen, at
  normal pressure 97 saturation.

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Factors Affecting saturation

• 1. Temperature When temperature goes down ,
  saturation goes

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Factors Affecting saturation

• 2. Acidity
• ph down
• acidity up
• saturation down

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Factors Affecting saturation

• 3. Pressure
• Pressure down
• Saturation down

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Effect of altitude (4)

• 1. Less pressure with higher altitude.
• 2. Increase breathing rate for more air.

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Effect of altitude

• 3. Heart rate increase to move more blood.
• 4. Body produces more RBCs

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CO2 Transport

• Getting CO2 out of tissues. 3 ways to do it.

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CO2 Transport

• 1. 8 CO2 taken by plasma

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CO2 Transport

• 2. Hemoglobin carries about 25

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CO2 Transport

• 3. Carbonic Acid
• CO2 H2O
• H2CO3
• H HCO3 -

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COLOR OF BREATH LAB

• LAB TIME