II. Human cardiovascular physiology I. Physiology of the Crayfish III. Circulation in the gold fish...
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Transcript of II. Human cardiovascular physiology I. Physiology of the Crayfish III. Circulation in the gold fish...
II. Human cardiovascular physiology
I. Physiology of the Crayfish
III. Circulation in the gold fish
This week in 206
Animal respiration and circulation.
What is respiration?
Animal respiration and circulation.
Glucose + O2 CO2 + H2O + E
What is respiration?
Breathing.
Air orwater
Gills orlungs
O2
CO2
Circulatorysystem
TissuesOrgans
O2
O2
CO2
CO2
O2 + Glucose
CO2 + H2O + E
Outside
O2 CO2
Membrane(s) Membrane(s)
O2 CO2
O2 21%CO2 <1%
Open vs. Closed
Arthropods/crustaceaCrayfish
Blood pumped out totissues, dumped in sinuses
Tissues ~bathedComes back to heartThrough sinuses and Reenters through ostia
Low pressure-low resistanceHigh volume
Circulatory systems
Vertebrates human
Blood pumped in pipes andNever touches tissues-arteries/veins
Trend is to separate oxygenatedFrom non-oxygenated blood
High pressure-high resistanceLow volume
Respiratory systems
Open circulatory system
Heart Sinuses Heart
arteries ostia
Ophthalmic- eyes
Antennal- antennae, antennules, green glands
Hepatic- digestive gland
ArteriesOstia
Closed
Vertebrate circulatory systems
Human heart
2 systems- pulmonary and systemic.
Structure of blood vessels
Human respiratory system
Angioplasty
Coronary bypass
Measuring Blood Pressure
Stethoscope
Sphygmomanometer
High pressure = systolic, blood flow stopped above thisLow pressure = diastolic, flow unrestricted below this
120 mm Hg 80 mm Hg
Crayfish respiration
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Dr. James L. LarimerUT-Austin professor 1959 - 2005Zoology / Neurobiology
Bubble O2 or N2Set O2 level andmonitor
Measure ventilation rate