BISC 220Lg Lecture Notes - Lecture 13: Pancreatic Islets, Blood Sugar, Glucose Transporter
6 Apr 2017
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Animal physio: the study of the normal functioning of a living animal and its component parts, including all its chemical and physical processes. Homeostasis: maintenance of relative constancy of the internal environment. Made of matter: governed by all chemical and physical laws. Important to realize that all these principles apply to us. Small intestine, large intestine, stomach digestive. Skin defines what is inside and what"s outside. Concept of internal environment is important because the cells are delicate. Physiological systems will maintain conditions despite what happens outside. Maintaining glucose in the blood is important. Brain has high metabolic rate, powered by glucose metabolism, and no ability to store glucose on its own (have to be supplied by blood. Normal blood glucose: 70-110 mg glucose/100 ml. High blood glucose will lead to diabetes overtime. When the response of control system counteracts the input. Contain different cell types - alpha and beta cells.
