Human Anatomy & Physiology

Tissue

Tissue ·         Tissue is the groups of cells which perform specialized activity of the body. ·         Tissue is the group of cells, which are similar in origin, structure and function are called as “Tissue”. ·         The study of tissue is called “Histology”. ·         The tissue in plants is divided into three types; o   Vascular tissue …

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The Cell

The Cell ·         The cell is a fundamental unit of life was first discovered by Rebert Hook in 1665 from slice of cork. ·         An average diameter of a cell is about 2-120µm. Cell theory ·         The cell theory was proposed by Matthais Schleiden and Theodor Schwaan in 1839. ·         All living thing are made …

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The Eye

The Eye The eye is the visual organ. It resides in the orbital cavity and is supplied by the optic nerve (the second cranial nerve). It is a sensory unit composed of three parts: receptor, sensory pathway, and a brain center. ·         It is spherical structure situated in the orbital cavity ·         It is about 2.5 …

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THE NERVOUS SYSTEM

THE NERVOUS SYSTEM ·         The nervous system detects and responds to change inside and outside the body. ·         It controls many vital aspects of body function and maintain homeostasis.  ·         The nervous system has three main function. 1.      Sensory 2.      Integration 3.      Motor  Classification  ·         The nervous system consists of neurons, which conduct nerve impulses …

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THE CARDIOVASCULAR SYSTEM

The cardiovascular system ·         The cardiovascular represents “Cardio” means Heart; to ensure constant circulation of blood and “Vascular” means Blood Vessel; through which the blood flows. ·         The heart is pumped by two circulation systems; 1.      The pulmonary circulation   2.      The systemic circulation  Fig. 02: Blood circulation  The heart and Homeostasis ·         The heart …

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