BBE2103 Digestion Metabolism and Excretion
Course description
This course exposes the students to the structures and functions of the gastro-intestinal tract and the
renal system. The way the food is digested and absorbed by the body. How the body use the ingested
nutrients to get energy and build body structures. They will appreciate the way body fluids and
electrolytes are balanced by the kidneys plus the process of excretion of end metabolites.
Course Objectives
1. To describe the anatomy of the abdominal cavity and its contents
2. To outline the GIT mortality and the reflexes therein.
3. To discuss digestion and absorption of Macro and micro nutrients
4. To discuss the process of urine formation and excretion
5. To outline the GIT and Renal function tests.
Course Content
 Embryology, Histology and Gross Anatomy of the abdominal wall and its contents, the
stomach, small and large intestines, the kidneys and supra-renal, nerves, blood vessels and
Lymphatics.
 GIT movements, gastro-colic reflex, defecation reflex.
 Digestive enzymes, digestive secretions and juices, hormones involved in digestion,
digestion of carbohydrates, proteins and fats. Absorption of carbohydrates, proteins and
fats. Cell utilization of the absorbed products of carbohydrates, proteins and fats
 Absorption of micronutrients and their use in the cells.
 THE FUNCTIONS OF THE NEPHRON, GLOMERULAR FILTRATE, REABSORPTION AND
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SECRETION IN THE RENAL TUBULES. EXCRETION OF NA , K , UREA, H , HCO3 ,
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CA , ETC.. MICTIRITION REFLEX.
 GIT AND RENAL FUNCTION TESTS: FOOD TRANSIENT TIME, STOOL AND URINE
COLOUR AND CONSTITUENCY, ABDOMINAL X-RAY, CT SCAN, ANGIOGRAPHY,
ULTRA SOUND, NUCLEAR, IMAGING, LAB CHEMISTRY.
Methods of delivery
Lectures, Tutorials, Seminars, Practical
Assessment Methods
Continuous assessment, written exam, viva and practical
Course coordinator
Mr Hannington Kasozi
Resource books
1. Gyton A.MD. & Hall J.E; Textbook of Medical Physiology. Elsevier Science
2. Ganong WF. Review of Medical Physiology: MacGraw-Hill
3. G.J Romanes(1986), Manual of practical Anatomy,volume 3, 15th edition, ISBN 0194424189
4. J.W Meath(Churchhill Livingstone,B Young) Weater's functional Histilogy, 4th edition
5. F.Dalley Clinically oriented Anatomy, 5th edition
Requirements
Hours per Semester
LH
45
PH
00
TH
30
CH
60
Weighted
Total Mark
WTM
100
Weighted
Exam
Mark
WEM
60
Weighted
Continuous
Assessment Mark
WCM
40
Credit
Units
CU
4