ventricle

Heart and its structure

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Human heart is a roughly triangular structure and a muscular organ. It is situated in the thoracic cavity between the two lungs. One third of its part lies on the right side and two third on the left side. An average human heart weighs about 300-350 grams which is about 12 cm long and 9 … Read more

Central nervous system (Brain)

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The central nervous system consists of two parts. They are – a)Brain and b)Spinal cord A)Brain It is highly specialized delicate organ of the human body. It weighs about 1.3-1.5kg depending on the gender (in case of human). It is protected by a bony brain case or cranium. It is composed of soft nervous tissues … Read more