Biology 107
Lecture Notes: Respiration.
Reading:
Chapter 42 in text.
á
Mammalian respiratory
systems
o larynx :
o bronchi; bronchioles; alveoli
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Ventilating the lungs
o negative pressure breathing:
o diaphragm :
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The amount of air
inhaled and exhaled depends upon size, activity level, and state of health
o Tidal volume :
o Vital capacity :
o Residual volume :
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Control centers in the
brain regulate the rate and depth of breathing
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Gases diffuse down
pressure gradients in the lungs and other organs
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Respiratory pigments
transport gasses and help buffer the plasma
o
Oxygen transport
á Hemocyanin :
á Hemoglobin:
o
Carbon dioxide transport
á myoglobin :