Respiration

1
Respiration

• Karen Kraus
• BIOL 204
• October 16, 2007

2
f(x) V1P1

• Gas exchange
• Filtration, warming, humidifying air
• pH balance
• Speech and smell
• Venous clot filtration
• Heart protection
• Concentration of neurotransmitters

3
processing

• Ventilation
• Internal and external respiration
• Gas transport

4
pieces parts

• Conducting zones
• Nasal area
• Throat area
• Trachea and larger respiratory passages (bronchi)

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Tiny pieces

• Respiratory zone
• Smallest passageways
• alveoli

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Do you smell something?
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Say something!
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Shake the tree
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roots
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Crossing the border

• Alveolus capillary
• Partial pressures vs. diffusion
• Daltons Law
• Henrys Law

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Boyling over
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mechanism

• Pressure differences
• Thoracic volume increases
• Lungs pulled open
• Pressure decreases
• Air moves in
• Vice versa

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Little tidbits

• Compliance
• Elasticity
• Surfactant
• Intercostal muscles
• Air flow resistance