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Monday, May 28, 2012

Amazing Medical Facts of the Body part-9

161. Nails and corneas are the only two tissues in the body that do not receive oxygen from blood.
162. The length of the finger indicates how fast the nail grows. The nail of the middle finger grows faster than others.
163. The human ears can hear in the frequency of 1,000 to 50, 000 hertz.
164. The total surface area of the human brain is about 25, 000 square cms.
165. When the sounds are above 130 decibels, it causes pain to the ears.
166. There are around 100 receptors in each of our fingertips.
167. The weight of skin in a human adult is 4 to 5 kg.
168. The middle part of the back is the least sensitive part of our body.
169. Children have better sense of smell than adults.
170. The eyelashes shed by a human in his entire life is of 30 m of length.
171. After death, the body starts to dry out creating an illusion that the nails and hairs are growing even after death.
172. The surface of human skin is 6.5 square feet.
173. Every second, 15 million blood cells are destroyed in the human body.
174. An average human being will breathe about 23,040 times per hour.
175. The base of the spinal cord has a cluster of nerves, which are most sensitive.
176. The surface area of the human lung is equal to that of a tennis court.
177. When we reach 60 years of life, we lose 50 % of our taste buds.
178. Blinking of one eye causes movement of 200 muscles.
179. Platelets, which are one of the constituents of the blood is produced at the rate of 200 billion per day.
180. The sense of taste is the weakest of the five senses.

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