lecture20nth - Partial pressures of oxygen and carbon...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Partial pressures of oxygen and carbon dioxide in the alveoli are different from the atmosphere (Loudon Fall 2010 note-taking helper file) Figure 18-3 (Loudon Fall 2010 note-taking helper file) Figure 18-6 Oxygenhemoglobin dissociation curve Effects of high altitude? sea level, total pressure is 760 mm Hg (PO2 is 159 mm Hg) ~3000 m high, reduction in physical performance (Loudon Fall 2010 note-taking helper file) Figure 18-9 ("normal") facilitates unloading of oxygen from Hb (Loudon Fall 2010 note-taking helper file) Figure 18-10a (Loudon Fall 2010 note-taking helper file) Figure 18-10b Scuba diving? Have to breathe pressurized air in order to ventilate lungs. PO2 will be higher in alveoli image from Google images (Loudon Fall 2010 note-taking helper file) Carbon dioxide transport •70% as HCO3•23% Hb*CO2 •7% as dissolved CO2 (Loudon Fall 2010 note-taking helper file) Figure 18-14 Reflex control of ventilation Figure 18-16 (Loudon Fall 2010 note-taking helper file) (Loudon Fall 2010 note-taking helper file) Figure 18-4 And now...the kidneys. functions: •regulation of fluid volume •regulation of osmolarity •ion balance •regulation of pH •excretion of wastes •production of hormones (Loudon Fall 2010 note-taking helper file) Figure 19-1a ...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online