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Tag: free biology lesson

Cardiac cycle (Animal Physiology – BLOOD AND CIRCULATION)
Science A Plus August 30, 2022
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Cardiac cycle (Animal Physiology – BLOOD AND CIRCULATION)

Before starting the lesson, try to recall the structure of the human heart and the main vessels in our blood circulatory system. Identify, the parts of the human heart. Structure of the Human heart Atrium The upper chambers are called atria. It consists of, a Right atrium and, a Left atrium. The left atrium contains […]

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Human Blood ( Animal Physiology – BLOOD AND CIRCULATION)
Anuradhika Lakmali August 30, 2022
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Human Blood ( Animal Physiology – BLOOD AND CIRCULATION)

Introduction Blood is a special complex connective tissue. Blood is a homogeneous fluid, that contains plasma and a suspension of corpuscles. Components of blood. When blood is centrifuged in a centrifuge machine and thereafter kept aside, blood separates into two different layers. The dark red layer is composed of blood corpuscles, whereas the pale-yellow layer […]

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