Question

how human body is formed?​

Answer 1

Answer:

These four basic cell types, together with their extracellular materials, form the fundamental tissues of the human body: (1) epithelial tissues, which cover the body's surface and line the internal organs, body cavities, and passageways; (2) muscle tissues, which are capable of contraction and form the body's ...

Answer 2

Answer :-

The human body consists of trillions of cells, each capable of growth, metabolism, response to stimuli, and, with some exceptions, reproduction. Although there are some 200 different types of cells in the body, these can be grouped into four basic classes. These four basic cell types, together with their extracellular materials, form the fundamental tissues of the human body:

1. ᴇᴩɪᴛʜᴇʟɪᴀʟ ᴛɪꜱꜱᴜᴇꜱ, = which cover the body’s surface and line the internal organs, body cavities, and passageways;
2. ᴍᴜꜱᴄʟᴇ ᴛɪꜱꜱᴜᴇꜱ, = which are capable of contraction and form the body’s musculature;
3. ɴᴇʀᴠᴇ ᴛɪꜱꜱᴜᴇꜱ, = which conduct electrical impulses and make up the nervous system; and
4. ᴄᴏɴɴᴇᴄᴛɪᴠᴇ ᴛɪꜱꜱᴜᴇꜱ, = which are composed of widely spaced cells and large amounts of intercellular matrix and which bind together various body structures.

Explanation:

The human body contains around 20 different elements, mostly made inside ancient stars. If you deconstructed an 80kg human into atoms, you would get about the following amounts of the different elements:

Oxygen - 52kg

This element makes up more than half the mass of your body but only a quarter of its atoms.

Carbon - 14.4kg

The most important structural element, and the reason we are known as carbon-based life forms. About 12 per cent of your body's atoms are carbon.

Hydrogen - 8kg

The hydrogen atoms in your body were formed in the Big Bang. All the others were made inside a star long ago and were flung into space by a supernova explosion. So though you may have heard that we are all stardust, that isn't strictly true.

Nitrogen - 2.4kg

The four most abundant elements in the human body - hydrogen, oxygen, carbon and nitrogen account for more than 99 per cent of the atoms inside you. They are found throughout your body, mostly as water but also as components of biomolecules such as proteins, fats, DNA and carbohydrates.

Calcium - 1.12kg

Phosphorus - 880g

Sulphur 200g

Potassium - 200g

Sodium - 120g

Chlorine - 120g

Magnesium - 40g

Magnesium is a key component of superoxide dismutase, one of the most important detoxification enzymes.

Fluorine - 3.0g

Hardens the teeth, though fluorine is not considered essential to life.

Zinc - 2.6 g

Strontium 0.37g

Strontium is found almost exclusively in bones, where it may have a benefcial effect on growth and density.

lodine 0.0128 g

lodine is an essential component of the thyroid hormone thyroxine. Iodine is the heaviest element required by the human body.

Copper - 0.08g

Copper is a component of many enzymes. Copper deficiency causes neurological and blood disorders.

Manganese - 0.0136 g

Molybdenum - 0.0104 g