This week in 206 I Physiology of the
- Slides: 18
This week in 206 I. Physiology of the Crayfish II. Human cardiovascular physiology III. Circulation in the gold fish
Animal respiration and circulation. What is respiration?
Animal respiration and circulation. What is respiration? Glucose + O 2 Breathing. CO 2 + H 2 O + E
Gills or lungs Circulatory system O 2 Outside Air or water O 2 CO 2 + Glucose O 2 CO 2 Membrane(s) O 2 21% CO 2 <1% Tissues Organs CO 2 + H 2 O + E Membrane(s)
Circulatory systems Open Arthropods/crustacea Crayfish Blood pumped out to tissues, dumped in sinuses Tissues ~bathed Comes back to heart Through sinuses and Reenters through ostia Low pressure-low resistance High volume vs. Closed Vertebrates human Blood pumped in pipes and Never touches tissues-arteries/veins Trend is to separate oxygenated From non-oxygenated blood High pressure-high resistance Low volume
Respiratory systems
Open circulatory system Arteries Ostia Ophthalmic- eyes Antennal- antennae, antennules, green glands Hepatic- digestive gland Heart Sinuses arteries Heart ostia
Closed Vertebrate circulatory systems
Human heart 2 systems- pulmonary and systemic.
Structure of blood vessels
Human respiratory system
Angioplasty
Coronary bypass
Measuring Blood Pressure Sphygmomanometer Stethoscope High pressure = systolic, blood flow stopped above this Low pressure = diastolic, flow unrestricted below this 120 mm Hg 80 mm Hg
Crayfish respiration
Dr. James L. Larimer UT-Austin professor 1959 - 2005 Zoology / Neurobiology
Set O 2 level and monitor Measure ventilation rate Bubble O 2 or N 2
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