- Humans are also animals and belong to sub-phylum vertebrata of phylum Chordata.
- Human brain, neocortex is far more developed in whole animal kingdom.
- Chemical composition of Human Body consists of water and organic compounds such as lipids, proteins, carbohydrates and nucleic acid.
- A cell is the smallest part of a Human body and there are many types of cell. Human body consists of trillions of cells.
- Human body contains 9 major organs such as integumentary system, respiratory system, circulatory system, digestive system, excretory system, nervous system, nervous system, reproductive system
- New born babies have around 305 bones but these bones fuse together to form new bones when they reach adult hood and in adult hood we have only 206 bones.
- Mouth produces around a liter of saliva everyday without you noticing it.
- Most of these 206 bones are located in hand, feet, wrists and ankles.
- Teeths are also part of skeleton system but they do not count towards bone count.
- Human body is made up of 60 percent of water.
- Our brain uses around a quarter of the total oxygen we inhale.
- Sometimes our brain becomes more active while we are asleep than we are awake.
- A adult blood vessels can circle earth’s equator four times if connected end to end.
- Around 67 different species of bacteria live in our gut system (stomach).
- Human jaw is the most strongest muscle in human body.
- Smallest bone in human body is found in ears.