Physiology 1021 Lecture Notes - Choroid Plexus, Postcentral Gyrus, Osmotic Concentration

• School: Western University
• Department: Physiology
• Course: Physiology 1021
• Professor: Glen Belfry

Document Summary

The study of function of a living organism. Distinguish between the external and internal environments of the body. The ability of the body to maintain a relatively constant internal environment. A dynamic, self-regulatory process involving all organs, tissues and cells of the body. A stimulus triggers a response which decreases the stimulus. A change in a controlled variable (temperature) triggers a response that drives the variable in the opposite direction. Once the variable is back at the set point the response loop shuts off. Fill in flowchart of negative feedback loop by labelling its components. Describe the chemical composition of the intracellular fluid, interstitial fluid, and plasma. Substance plasma mosm/l h2o interstitial mosm/l h2o intracellular mosm/l h2o. Overall: salty banana- there is a large concentration of na and cl (salty) outside the cell and k (banana) inside the cell. There is a slightly higher concentration of proteins inside the cell and a slightly higher concentration of ca outside the cell.