Lecture 22 Fluid Balance March 31

Lecture 22 Fluid Balance March 31 - BISC 220 General...

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Unformatted text preview: BISC 220 General Biology Cell Biology and Physiology Instructor for Part 2 Michael Jakowec, PhD [email protected] Lab: MCA-241 (HSC Campus) Office Hours: ? Q & A: Hedco 100 Thursday 2 to 3 pm Date Day Lecture No. Topic Mar 3 Thurs 16 Cardiovascular System 1: Heart Mar 8 Tues 17 Cardiovascular System 2: Blood System Mar 10 Thurs 18 Respiratory System Mar 11 Friday Exam Lectures 9 to 16 Mar 15 and 17 Optional Spring Break (Studying of course) Mar 22 Tues 19 Immunity 1 Mar 24 Thurs 20 Immunity 2 Mar 29 Tues 21 Fluid and electrolytic balance 1 Mar 31 Thurs 22 Fluid and electrolytic balance 2 Apr 5 Tues 23 Endocrine System 1 Apr 7 Thurs 24 Endocrine System 2 Apr 8 Friday Exam Lectures 17-23 Apr 12 Tues 25 Reproduction 1 Apr14 Thurs 26 Reproduction 2 Apr 19 Tues 27 Nervous System 1 Apr 21 Thurs 28 Nervous System 2 Apr 26 Tues 29 Motor System 1 Apr 28 Thurs 30 Motor System 2 May 10 Exam Lectures 24 -30 Fluids and Electrolytic Balance, Part 2 Fine structure and Function of the Kidney March 31, 2011 Lecture 22 Cinematic Study Guide Urea, Ammonia Uric Acid Friederich Wohler 1828 Uric Acid Ammonia Ammonium ion Fig. 44-2 Selectively permeable membrane Net water flow Hyperosmotic side Hypoosmotic side Water Solutes Fig. 44-4 Excretion of salt ions from gills Gain of water and salt ions from food Osmotic water loss through gills and other parts of body surface Uptake of water and some ions in food Uptake of salt ions by gills Osmotic water gain through gills and other parts of body surface Excretion of large amounts of water in dilute urine from kidneys Excretion of salt ions and small amounts of water in scanty urine from kidneys Gain of water and salt ions from drinking seawater (a) Osmoregulation in a saltwater fish (b) Osmoregulation in a freshwater fish Fig. 44-6 Water gain (mL) Water loss (mL) Urine (0.45) Urine (1,500) Evaporation (1.46) Evaporation (900) Feces (0.09) Feces (100) Derived from metabolism (1.8) Derived from metabolism (250) Ingested in food (750) Ingested in food (0.2) Ingested in liquid (1,500) Water balance in a kangaroo rat (2 mL/day) Water balance in a human (2,500 mL/day) Fig. 44-9 Many reptiles (including birds), insects, land snails Ammonia Uric acid Urea Most aquatic animals, including most bony fishes Mammals, most amphibians, sharks, some bony fishes Nitrogenous bases Amino acids Proteins Nucleic acids Amino groups Fig. 44-10 Capillary Excretion Secretion Reabsorption Excretory tubule Filtration F i l t r a t e U r i n e Fig. 44-14 Posterior vena cava Renal artery and vein Urinary bladder Ureter Aorta Urethra Kidney (a) Excretory organs and major associated blood vessels Cortical nephron Juxtamedullary nephron Collecting duct (c) Nephron types To renal pelvis Renal medulla Renal cortex 10 µm Afferent arteriole from renal artery Efferent arteriole from glomerulus SEM Branch of renal vein Descending limb Ascending limb Loop of Henle (d) Filtrate and blood flow Vasa rect a Collecting duct Distal tubule Peritubular capillaries...
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This note was uploaded on 02/28/2012 for the course BIO 220 taught by Professor Morre during the Spring '09 term at USC.

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Lecture 22 Fluid Balance March 31 - BISC 220 General...

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