HOMEOSTASIS
Homeostasis | Functional Organization of the Human Body and Control of the "Internal Environment"
HUMAN PHYSIOLOGY
Attempts to explain the specific characteristics and mechanism I human body that make it a living being.
25 TRILLION RBC
100 TRILLION (ENTIRE BODY CELLS)
60% of adult human ----- fluid
2/3 rd of it - ICF
1/3rd of fluid - ECF (extracellular)
The extracellular fluid is also called internal environment I the body. Or the milieu intérieur
↳ coined by Claude Bernard Intracellular
EXTRACELLULAR .
large amount of Na , Cl and bicarbonate
Nutrient for cells
INTRACELLULAR .
large amount of K, Mg, and phosphate ions
Oxygen , Glucose, Fatty acid, amino acid
HOMEOSTASIS
↳ coined by Walter Cannon i'm 1929.
DISEASE ...State of disrupted homeostasis.
The discipline of pathophysiology seeks to explain how the various physiological processes are altered in diseases or injury
OVER ALL CIRCULARY BOOD
* On average, all the blood in the circulation transverse the entire circulation once / min. at rest.
• And as many when as 6 times super active.
Example of Contact Mechanism
(Baroreceptor System) - Present in the walls bifurcation region of the carotid arteries in the neck & in the arch aorta in the thorax.
Negative feedback control of arteria pressure by the arterial baroreceptors Signals from the sensor baroreceptors are sent to medulla of the brain, where they