SCIENCE KNOWLEDGE

SCIENCE KNOWLEDGE 

★ Number of bones - 206

★ Number of muscles - 639

★ Number of kidneys - 2

★ Number of milk teeth - 20

★ Number of ribs - 24 (12 pairs)

★ Number of chambers in the heart - 4

★ Largest artery - Aorta

★ Normal Blood pressure - 120 - 80

★ Ph of blood - 7.4

★ Number of vertebrae in the spine - 33

★ Number of vertebrae in the Neck - 7

★ No of bones in middle Ear - 6

★ Number of bones in Face - 14

★ Number of bones in Skull - 22

★ Number of bones in Chest - 25

★ Number of bones in Arms - 6

★ Number of bones in each human ear - 3

★ Number of muscles in the human arm - 72

★ Number of pumps in heart - 2

★ Largest organ - Skin

★ Largest gland - Liver Smallest cell - Blood cell, Biggest cell - Egg cell (ovum)

★ Smallest bone - Stapes

★ First transplanted organ - Heart

★ Average length of small intestine - 7 m

★ Average length of large intestine - 1.5 m

★ Average weight of new born baby - 2.6 kg.

★ Pulse rate in one minute - 72 times

★ Body Temperature - 36.9o C (98.4o F)

★ Average blood volume - 4 - 5 liters

★ Average life of RBC - 120 days

★ Pregnancy period - 280 days

★ Number of bones in human foot - 33

★ Number of bones in each wrist - 8

★ Number of bones in hand - 27

★ Largest endocrine gland - Thyroid

★ Largest lymphatic organ - Spleen

★ Largest cell - Nerve cell

★ Largest part of brain - Cerebrum

★ Largest & strongest bone - Femur

★ Smallest muscle - Stapedius (Middle ear )

★ Number of chromosomes in human cell - 46 (23 pairs)

★ Number of bones in New born body - 300

★ Largest muscle - Buttock (Gluteus Maximus)