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Class Notes for BIOLOGY 3U03 at McMaster University

MCMASTERBIOLOGY 3U03Michael O' DonnellFall

BIOLOGY 3U03 Lecture 1: Introduction to Circulation

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Fish: single circulation (one pump drives blood through gills body heart, single ventricle perfuses two resistances in series, de-oxygenated blood retu
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MCMASTERBIOLOGY 3U03Michael O' DonnellFall

BIOLOGY 3U03 Lecture Notes - Lecture 20: Ascending Limb Of Loop Of Henle, Tubular Fluid, Renal Medulla

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Solute & water transport in the loop of henle. Thin descending & ascending segments have thing epithelial membrane with no brush borders, few mitochond
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MCMASTERBIOLOGY 3U03Michael O' DonnellFall

BIOLOGY 3U03 Lecture Notes - Lecture 21: Distal Convoluted Tubule, Nephron, Tubular Fluid

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Kidneys excrete excess water by forming dilute urine. Kidney can excrete urine with an osmolarity of 50 mosm/l-1400 mosm/l (depending on osmolarity of
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MCMASTERBIOLOGY 3U03Michael O' DonnellFall

BIOLOGY 3U03 Lecture Notes - Lecture 19: Oncotic Pressure, Afferent Arterioles, Blood Proteins

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Sum of hydrostatic & colloid osmotic forces across glomerular membrane. Hydrostatic pressure in bowman"s capsule (pb)- opposes filtration. Colloid osmo
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MCMASTERBIOLOGY 3U03Michael O' DonnellFall

BIOLOGY 3U03 Lecture Notes - Lecture 22: Angiotensin, Extracellular Fluid, Cardiac Output

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Sodium intake & excretion are precisely matched under steady- If disturbances of kidney function are not too severe, sodium balance may be achieved mai
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