Archive | Human Physiology

Chronaxie and Rheobase of Various Tissues | Muscles | Humans | Biology

The excitability of different tissues varies widely. Some tissues are highly excitable whereas others are dull. While considering the excitability of a tissue two factors are to be considered: (a) The strength of the current used, and (b) The duration of the current flowing through the tissue. These two factors bear an inverse relation. The stronger the current the lesser [...]

By |2017-07-27T08:05:45+00:00July 27, 2017|Muscles Physiology|Comments Off on Chronaxie and Rheobase of Various Tissues | Muscles | Humans | Biology

Mechanism of Formation of CO2 | Respiration | Humans | Biology

In this article we will discuss about the mechanism of formation of CO2 with the help of suitable diagrams. We have seen that hydration of CO2 occurs in the blood and the mechanism can be represented as CO2 + H2O ↔ H++ HCO3. Further the H+ is buffered by reduced Hb within the RBC and by plasma buffers outside the [...]

By |2017-07-27T08:05:44+00:00July 27, 2017|Respiratory System|Comments Off on Mechanism of Formation of CO2 | Respiration | Humans | Biology

Types of Breathing Resistance in Human Beings | Biology

The air as it enters the lungs meets with two types of resistances: 1. Elastic Resistance 2. Non-Elastic Resistance. Type # 1. Elastic Resistance: Elastic resistance is exerted by the elastic tissue of the lung parenchyma and surface tension of intra-alveolar fluid. Elastic tissues of the lungs obey Hooke's law which means that change in volume of lungs is directly [...]

By |2017-07-27T08:05:44+00:00July 27, 2017|Respiratory System|Comments Off on Types of Breathing Resistance in Human Beings | Biology
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