PGY 451 GI Physiology Learning Objectives

PGY 451 GI Physiology Learning Objectives -...

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Gastrointestinal Physiology Learning Objectives PGY 451 Topics Introduction to GI Physiology (Intro) Motility (M) Secretion (S) Absorption (A) Regulation (R) Integration (I) Integrated Function and Regulation of the GI Tract (Intro, I) Describe the overall role of the gastrointestinal system with respect to the whole body balance of water, electrolytes, carbohydrates, fats, and proteins. Include the processes of digestion, absorption, secretion, and excretion. Identify the excretory products in the feces. (I) For carbohydrates, differentiate the processes of ingestion, digestion, absorption, secretion, and excretion, including the location in the GI tract where each process occurs. Repeat the analysis for proteins and fats. (I) Identify the approximate normal volumes of fluid entering and leaving the gastrointestinal tract daily. (I) Define the major characteristics and temporally relate the cephalic, gastric, and intestinal phases of GI tract regulation. (I) Describe the four classes of luminal stimuli that trigger GI reflexes. (Intro) Describe the histoanatomical characteristics of the GI tract wall. Given either a cross section of the intestine, name, locate and describe the function(s) of each of the four layers. (Intro, M, R) Describe the histoanatomical characteristics of the enteric nervous system. Given either a cross section or a longitudinal section of the intestine, name and locate the myenteric and submucosal plexus. (R) Contrast the sympathetic and parasympathetic modulation of the enteric nervous system and the effector organs of the GI tract. (R) Describe the actions of the following enteric nervous system neurotransmitters: norepinephrine and acetylcholine. (R) Describe the terms “long reflex” and “short reflex” with respect to the GI tract.
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(R,I) Describe the similarities and differences in regulating gastrointestinal function by nerves, hormones, and paracrine regulators. Include receptors, proximity, and local vs. global specificity. (R) Identify the cell type and anatomical location of the endocrine cells secreting gastrin, secretin, and cholecystokinin (CCK), GIP, and motilin. (R) Describe function of histamine and somatostatin as paracrine regulators of acid secretion in the stomach. Salivary Glands (S,D) State the substrates and digestion products of salivary amylase (ptyalin). (S,R) Identify the stimuli and cell types involved in GI secretion of mucous, and identify the function of salivary mucus. (S,R)
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PGY 451 GI Physiology Learning Objectives -...

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