Textbook Notes (368,986)
Canada (162,320)
Physiology (42)
PHGY 313 (3)

18- Gallstone disease notes.docx

2 Pages
Unlock Document

PHGY 313
Russell Jones

Lecture 18 - 18/02/2013 Shouldn't be able to touch liver from under the ribs unless you have hepatitis. Common bile duct and pancreatic duct fuse and spill into the 2nd stage of duodenum through the ampulla of vater (controlled by sphincter of Oddi) Case Study: Gallstone disease  Pain after meal in upper R epigastric region. Urine became darker, stool floated. Jaundice in eyes. 1. How could the findings in the ultrasound explain the patient's pain?  After you eat food, CCK release is stimulated by fatty acids in the duodenum (APUD cells, specifically I cells). CCK causes gall bladder contraction and bile is secreted.  Stones block the duct, causing an increase in pressure. Pain receptors in wall of gall bladder you get gall bladder distension and pain.  Gall stones can be made of cholesterol, bile pigments, and Ca2+.  Stones are calcified and easily seen on the US. 2. How can you explain the yellowing of the sclera? Expand on the metabolism of the pigment causing the jaundice in this patient  Backflow in liver because of obstruction of common hepatic duct. Bilirubin enters the blood stream instead. The catabolism of heme makes biliverdin (greenish) via heme oxygenase. After a reduction you get bilirubin.  Bilirubin binds to glucoronic acid in 1:2 ratio.  Jaundice occurs when plasma bilirubin reaches 34μmoles/L.  Bilirubin glucoronide is deconjugated by bacteria.  Urobilinogen gives urine the yellow colour, and stercobilinogen gives colour to feces. o If secretion of stercobilinogen drops, feces
More Less

Related notes for PHGY 313

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.