20 important things of Human Anatomy for competitive exam

20 important things of Human Anatomy

1.Longest bone in human body -- Femur (thigh bone)
2. Smallest bone STAPES the middle ear
3. Hardest material in the human body Tooth -- enamel
4.Strongest muscle Jaw muscle
5. Largest external organ -- Skin
6. Largest internal organ Liver
7.Smallest gland -- Pituitary
8. Smallest blood vessel -- Capillary
9. Element most common in human body -- Oxygen (65%)
10. Mineral most common in human body -- Calcium
11. Compound most common in human body -- Water
12. Pigment which gives a dark colour to the skin Melanin
13. Nails are modification of EPIDERMIS (external layer of skin)
14. Muscles are attached to bones by connective tissues called --
Tendons
15. Bones are attached to bones by -- Ligaments
16. Sebaceous glands in human body secrete -- Sebum or oil
17 Lachrymal glands in human body secrete -- Tears
18. The volume of blood in an adult is -- 4.7 to 5 litres
19. The total number of bones in human body is -- 206
20. The most common type of blood group is -- Type O Hit Maximum Likes & Shares.

Collected by Suruj Senchowa

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