Basic and Cell Physiology

Physiology

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Lecture´s Description

In this video lecture, educator describes the Functional Organization of the Human Body. 60 per cent of the adult human body is fluid. Extracellular fluid contains large amounts of sodium, chloride, and bicarbonate ions plus nutrients for the cells, such as oxygen, glucose, fatty acids, and amino acids. Intracellular fluid differs significantly from the extracellular fluid; specifically, it contains large amounts of potassium, magnesium, and phosphate ions instead of the sodium and chloride ions found in the extracellular fluid.

Thousands of Genetic control systems, some operate within the organs to control functions of the individual part of the organs, other operate throughout the entire body to control the interrelations between the organ, Respiratory system, operating in association with the nervous system regulates CO2 in ECF, Liver and pancreas regulate the concentration of glucose in the extracellular fluid.

 Agene is a section of DNA that codes for a protein. Each unique gene has a unique sequence of bases. This unique sequence of bases will code to produce a unique protein. These proteins and combination of proteins that give us a unique phenotype. The central dogma of molecular biology deals with the detailed residue-by-residue transfer of sequential information. It states that information cannot be transferred back from protein to either protein or nucleic acid. In other words, 'once information gets into protein, it can't flow back to nucleic acid.

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