Human Body: Parts & Activities in Number

Number of bones
206
Number of ribs
24
Number of bones in skull
22
Number of bones in face
14
Number of bones in neck
7
Number of bones in Vertebral column
33
Number of bones in hand
30
Respiratory rate
16-20 times / minute
Number of heart beat
70-72 times/minute
Number of Chambers in Heart
4
Number of pulse
70-72 times / minute
Blood pressure
120/80 mm of Hg
Number of Cranial nerves
12 pairs
Number of spinal nerves
31 pairs
Life span of R.B.C
120 days
Life span of W.BC
10-15 Days
Life span of platelets
5-9 days
number of platelets
150,000 to 450,000
Amount of blood
5-6 Liter
normal body temperature
98.6°F (37°C)
% of water in adult human body
60-65%
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