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Lab 7
slides and cats and stuff from lab 7 woo
50
Anatomy
Undergraduate 2
08/19/2013

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Cards

Term
Peristalsis
Definition
propel the contents int he GI tract
Term
Segmentation
Definition
mix the contents in the GI tract
Term
Interstitial cell fo Cajal
Definition

pacemacker cell for intestines

creates slow wave potential

depolarization causes phasic AP firing

Term
How is the GI motility affected by the parasympathetic nervous system (ACh)?
Definition

There is an excitatory effect on GI motility

increases GI tract contraction

Term
How does histamine affect GI motility?
Definition

It has a stimulatory effect on GI contractions.

increases GI tract contractions

Term
Nifedipine
Definition
Ca2+ channel blocker, inhibits hte influx of calcium in smooth muscle cells
Term
How would nifedipine affect the smooth muscle contraction?
Definition

It prevents the Ca2+ myocyte contraction

decreases GI tract contraction

Term
What natural occurrence would cause the walls of the GI tract to stretch?
Definition
Filling of the small intestine (eating)
Term
How does filling of the small intestine/stretch affect motlity?
Definition
increases GI tract contraction
Term
Experimental setup for Lab 7?
Definition

Get 1" segment of rat intestine

Attach each end of the intestine with hooks, 2-3 mm away from the end of the intestine

Keep both strings as short as possible

Maintain appropriate tension on the tissue to obtain a signal on the screen

Term
Notes/Tips for Lab 7?
Definition

Maintain temp close to 37oC

Oxygenate the Tyrode's solution constantly, but not vigorously! (it will create noise)

Keep tissue completely submerged in Tyrode's solution at all times

Term
Gastroparesis
Definition
delayed gastric emptying where the stomach empties very slowly after meals, but there is no blockage or obstruction and no sphincter problem
Term
[image]
Definition
Appendix
Term
[image]
Definition
Ascending Colon
Term
[image]
Definition
Body
Term
[image]
Definition
Cardiac Portion
Term
[image]
Definition
Cecum
Term
[image]
Definition
Descending Colon
Term
[image]
Definition
Duodenum
Term
[image]
Definition
Esophagus
Term
[image]
Definition
Esophagus
Term
[image]
Definition
Fundus
Term
[image]
Definition
Gall Bladder
Term
[image]
Definition
Ileum
Term
[image]
Definition
Ileum Peyer's Patch
Term
[image]
Definition
Ileum Villi
Term
[image]
Definition
Jejunum
Term
[image]
Definition
Kidney
Term
[image]
Definition
Large Intestine
Term
[image]
Definition
Left Lateral Lobe
Term
[image]
Definition
Left Medial Lobe
Term
[image]
Definition
Liver
Term
[image]
Definition
Liver
Term
[image]
Definition
Pancreas
Term
[image]
Definition
Pancreas
Term
[image]
Definition
Parotid Salivary Gland
Term
[image]
Definition
Pyloric Sphincter
Term
[image]
Definition
Pylorus
Term
[image]
Definition
Rectum
Term
[image]
Definition
Right Lateral Lobe
Term
[image]
Definition
Right Medial Lobe
Term
[image]
Definition
Rugae
Term
[image]
Definition
Sigmoid Colon
Term
[image]
Definition
Small Intestine
Term
[image]
Definition
Spleen
Term
[image]
Definition
Stomach
Term
[image]
Definition
Stomach
Term
[image]
Definition
Submaxillary Salivary Gland
Term
[image]
Definition
Tongue Papillae
Term
[image]
Definition
Transverse Colon
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