Human Anatomy Important For Competitive Exams

Human Anatomy Important For Competitive Exams 
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√√Longest bone in human body -- Femur (thigh bone)
√√ Smallest bone STAPES the middle ear
√√ Hardest material in the human body Tooth -- enamel
√√ Strongest muscle Jaw muscle
√√ Largest external organ -- Skin
√√ Largest internal organ Liver
√√ Smallest gland -- Pituitary
√√ Largest artery -- Aorta
√√ Smallest blood vessel -- Capillary
√√ Element most common in human body -- Oxygen (65%)
√√ Mineral most common in human body -- Calcium
√√ Compound most common in human body -- Water
√√ Pigment which gives a dark colour to the skin Melanin
√√ Nails are modification of EPIDERMIS (external layer of skin)
√√ Muscles are attached to bones by connective tissues called --
Tendons
√√ Bones are attached to bones by -- Ligaments
√√ Sebaceous glands in human body secrete -- Sebum or oil
√√ Lachrymal glands in human body secrete -- Tears
√√ The volume of blood in an adult is -- 4.7 to 5 litres
√√ The total number of bones in human body is -- 206
√√ The most common type of blood group is -- Type O