Lab 9 The Kidney. Lab 9: The Kidney Dialysis experiment results and tests for NaCl and albumin (start dialysis first) Kidney dissection Urinalysis –Interpret.

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Presentation transcript:

Lab 9 The Kidney

Lab 9: The Kidney Dialysis experiment results and tests for NaCl and albumin (start dialysis first) Kidney dissection Urinalysis –Interpret dipstick with the help of a chart –Normal and abnormal constituents of urine –Urinary sediment (pictures +/or slides) Histology –Kidney #62, Ureter #62, and Bladder #10 PhysioEx 41B Renal Physiology --The Function of the Nephron Models –Urinary system –Kidney (including nephron and glomerulus models)

Dialysis and Kidney Dissection For each group of 4 students: –Have two students set up the dialysis experiment –Have the other two students start the kidney dissection

Dialysis of Albumin and NaCl Add albumin & NaCl using separate pipettes Tie bag Incubate for one hour Test beaker water using biuret reagent for protein and silver nitrate for Cl - ions

Kidney section

Kidney Dissection Make a frontal section and observe visible regions Save kidneys in a glove; mark with group names

A Human Kidney

The Nephron: Functional Unit of the Kidney

Three Physiological Processes In the Nephron: 1) glomerular filtration, 2) tubular reabsorption, and 3) tubular secretion –These three processes cooperate to achieve the various functions of the kidney –Different sites  different primary functions

Cortex – low power

Cortex – with Glomerular Corpuscles

Glomerular Filtration Membrane Diagram

Glomerular Filtration Membrane

Cortex-Medulla Transition Zone

Renal Medulla – Base of Pyramid

Ureter Histology (retroperitoneal)

Urinary Bladder

Transitional Epithelium

Urinalysis

Calcium Oxalate Crystals

RBCs – Some Crenated

WBCs & Bacteria (Rods)

Yeast

Squamous Epithelial Cells from the Urethra

Spermatozoan

PhysioEx Exercise 9 Activity 1

PhysioEx Exercise 9 Activity 1

PhysioEx Exercise 9 Activity 2

Exercise 9. Renal Physiology The Function of the Nephron: Computer Simulation Activity 1- The effect of arteriole radius on glomerular filtration. Page 9-18 Table 3 Activity 2- The effect of blood pressure on glomerular filtration. Page 9-18 Table 4 Below the data tables (or on the back of the page) construct and properly label six graphs using the data from each table. You can use plotting software, e.g., Excel, if you like.

Please Leave the Lab Areas Clean Gloves and tissue scraps to biohazard bucket Dissecting trays & instruments washed and replaced Urines flushed down the sink with plenty of water Urine centrifuge tubes washed, rinsed, and disinfected; then returned to their racks to dry. Urine cups, dipsticks, & paper towels in regular trash Used microscope slide cover slips in sharps containers Plain microscope slides washed and returned to microscope slide boxes Test tubes washed and returned to racks to dry Disinfect lab table and sink surfaces

Turn in: Pages 9-17/ graphs Complete MAP 9 End Lab 10

Calcium Oxalate Crystals Red Blood Cells Yeast White Blood Cells & Bacteria Squamous Cells

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