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General

Homeostasis Regulation – Positive and Negative Feedback Mechanism

Homeostasis, a term presented by W. B. Cannon, describes the mechanism by which the constancy of the internal environment is maintained and ensured Homeostasis is the maintenance of a fairly steady internal environment by self-regulating physiological processes Homeostasis keeps body temperature and the structure of blood and

Factors Affecting Net Rate of Diffusion

The diffusion of the substance can happen in any case, i.e. extracellular fluid (ECF) to intracellular fluid (ICF) or vice versa relying on the dominating environment The elements which impact the net rate of diffusion in the wanted direction are: Cell membrane permeability. Permeability of the cell

Epithelial Tissues – Simple And Stratified: Functions, Locations And Difference

Epithelial tissues, or epithelia (singular, epithelium), may be composed of one or more layers of cells. The number of cell layers and the shape of the cells provide the basis for classifying epithelial tissues. Epithelial tissues are distinguished by the following five characteristics: Epithelial cells are packed

Sense Organs

Interactive Anatomical Interface Bones Muscles Organs Digestive System Respiratory System Sense Organs Nerves Arteries Veins BONES Front Rear MUSCLES Front Rear Organs 👀 Digestive System Respiratory System Sense Organs NERVES ARTERIES VEINS [SenseOrgans]   Please hover over the figure to get a brief info about the body

The Cell Theory Development and History

Cytology, the clinical study of cells, was born in 1665 when Robert Hooke observed the empty cell walls of cork and created the word cellulae (” little cells”) to explain them. Soon he studied thin pieces of fresh wood and saw living cells “filled with juices”– a

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