Measuring Human Body

                                                                   Measuring Human Body

    The human body is a very complicated system consisting of millions of cells-organised uniquely and function dynamatically together.The complexites can be better understood when it is highligted. Anatomists find it useful to divide the human body into two systems: the skeleton, the muscles, the digestive system, the urinary system, the glandular system, the nervous system, and the skin.

Body Statistics

 The body: has about 9.14m of long tube for food intake and excrete, a surface area of more than 9.29 sqm, or five times the area of the body's skin.The intensitive process, at about 2.54 cm per minute, 40.64 metric tonnes of food over the course of 70 years.

 Skin: 2.72kg of skin cover the 1.85 sq.m of surface on an average adult.

 DNA: Deoxyribonucliec acid, a nucliec acid, is the vital constituent of chromosomes, responsible for transmitting genetic information, in the form of genes, from parents to offsprings. Each human cell contains about 2m of DNA supercoiled on itself such that it fits within the cell nucleus less than 10 micrometers. DNA comprises 4 bases- adenine A, guanine-G, thymine-T, and cytosine C, a sugar and phosphoric acid, organised in a double helix format. within this format, A  pairs only with T, and G only with C.

 Bones in the body: Babies are born with over 300 bones. Many of them fuse together as we grow up- and we end up with 206. The longest bone: The 'femur' or the thigh bone (1/4 of your height). The smallest bone: The stapes or the  stirrup-bone in the middle ear- few milimetres. The strongest bone: The shin bone,which connects the bone to the ankle. It can support 1,600 kg. More than half of the adult's bones are in the hands and feet. There are 27 bones in each hand and 26 in each foot- for a total of 106.

 Human Brain: Consists of two parts: the brain located in the skull and the spinal cord located in the vertebral column.

 Nerves  72.418km of nerves send impulses as rapidly as 360 km per hour. The fastest nerve impulse travels at 532 kmph.

 The heart 27949.3 litres of blood are pumped through 96,000 km of blood vessels in a day. The hollow muscle pumps enough blood in an average lifetime to fill the fuel tanks of 56 moon rockets. Unlike other muscles, its contractions are involuntary, begining 4 weeks after conception, before nerve cells are formed, and continue to pulse even out of the body in saline solution. Muscle cells called myocytes generate a total electrical current of about 2 watts that commands the fibres to contract. Shortly after birth, those cells stop dividing.