BPK 205 Chapter Notes -Renal Function, Macula Densa, Afferent Arterioles

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amethystworm242

1 Dec 2011

School

Simon Fraser University

Department

Biomedical Physio & Kines

Course

BPK 205

Professor

Parveen Bawa

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Document Summary

Chapter 19 (multiple choice and essay type: (a) draw and explain the structure of a typical nephron all the way to the collecting ducts. [20 minutes, 1 page of writing + one figure: afferent arteriole transfers blood to renal corpuscle. Blood travels through glomerulus in the bowman"s capsule, entering the nephron as filtrate. The glomerulus capillaries join to form the efferent arteriole: filtered fluid flows from bowman"s capsule into proximal tubule, primary fxn of proximal tubule is bulk reabsorption of isosmotic fluid. Cells transport solutes out of lumen, and water follows by osmosis then into loop of henle: descending portion of loop: more solute reabsorbed than water. [15 minutes, draw additional parts on the same figure as above] Vasa recta surrounds loop of henle where it dips into medulla. Passage of solutes and molecules between these two types of capillaries is mediated be interstitial fluid.

Related Questions

Starting with the glomerulus the regions of the urinary system that the filtrate must flow through are: (Please Note: not all structures need to be present, only that the sequence is correct)

a. glomerular capillaries â proximal convoluted tubule â ascending limb of the loop of Henle â minor calyx â urethra

b. Bowmanâs space â proximal convoluted tubule â descending limb of t he loop of Henle, collecting duct - ureter

c. proximal convoluted tubule â major calyx â bladder - urethra

d. âaâ and âbâ are correct

e. All are correct

Explanation as well would be helpful

harlequinserval672

13) Regulation of the volume and osmolarity of body fluidsoccurs first in the

a) proximal convoluted tubules.

b) distal convoluted tubules.

c) loop of Henle.

d) glomerular capsule.

e) collecting ducts.

14) Which is NOT True about podocytes?

a) their pedicels form filtration slits

b) they make up the parietal layer of the glomerular capsule

c) they are modified simple squamous epithelial cells

d)all of these choices statements about podocytes are true

15) In the process of forming concentrated urine, symporters inthe loop of Henle cause sodium ions and chloride ions to build upin the renal medulla helping to form the osmotic gradient. ADHincreases reabsorption of water by principal cells in thecollecting ducts.

True or False?

periwinklemoose578

parts of the nepheron: part of the renal corpuscle, this filter surrounds ball of capillaries, contains podocytes a) Bowmans capsule b) Glomerulus c) Loop of Henle d) Proximal convoluted Tubule e) Distal convoluted Tubule

BPK 205 Chapter Notes -Renal Function, Macula Densa, Afferent Arterioles

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