miércoles, 7 de noviembre de 2012

The Human Body


General obejtivo: 
Know the parts of the body and the meaning of each, to achieve a good knowledge about our bodies and parties around us.


Specific obejtivos :
1- To inform people body parts to tengar greater knowledge.
2-Demonstrate the importance of each part and definitions of our human body
3-OK positively different body parts and body shape.


introduction
The human body has about fifty trillion cells. These are grouped into tissues, which are organized into organs, and these eight organ systems: musculoskeletal (muscle and bone), respiratory, digestive, excretory, circulatory, endocrine, nervous and reproductive systems. Its constituent elements are mainly carbon (C), hydrogen (N) Oxygen (O) and nitrogen (N), appearing in many other elements lower proportions. These atoms are bonded together to form molecules, both inorganic and water (the most abundant in our body, drawing on the right) or organic as carbohydrates, lipids, proteins ... But the life that holds these atoms and molecules together with a purpose, make human beings and all living in an extraordinary complex machine, analyzable from any level: biochemical, cytological, histological, anatomical ... Cytology is the branch of science that studies biological cells. The cell is the smallest unit of life. All living things are composed of one or many cells. Below you can see a picture of the cell of the beings who belong to the Animal Kingdom. It is a eukaryotic animal cell: Click aquí para ver más imágenes...The simplest unicellular organisms are bacteria, which model of organization says it is prokaryotic. Below you can see a picture of the prokaryotic cell: 
 All human cells are, by contrast, eukaryotic cells, as are all cells of animals, plants and MOST beings. The eukaryotic cells of plants are somewhat different: they have a thicker cell wall outside the chloroplast membrane and POSSESS green parts, organelles That enable photosynthesis. There are some other differences: the vacuoles are scarce but large, etc. .. Below you can see what a plant eukaryotic cell:


 
 All cells share some essential elements such as the membrane envelope, the double helix ADNcitoplasma The rich organelles in eukaryotic cells and clearly differentiated nucleus in such cells, with a membrane that surrounds the nuclear genetic material. The nucleus is the "brain" of the cell organizer, and follows a "program" or coordinated general plan, written in the human species in 100,000 genes arranged in 23 pairs of chromosomes.  Histology is the study of biological tissues. There are only a few basic tissues, which are the epithelial, the connective, muscular and nervous, with which the organism is related, protects, secretes substances, maintains its shape, moves, coordinate their roles and relationships with the media .  Tipos de tejido
 There are four basic types of tissue: connective tissue, epithelial tissue, muscle tissue and nerve tissue. Connective tissue supports and binds other tissues such as bone, the blood and lymph. The epithelial tissue coverage serves, among these are the skin and the lining of various channels within the body. Muscle tissue includes skeletal or voluntary muscles that move the skeletal and smooth muscle, such as that surrounding the stomach. Nerve tissue is composed of nerve cells or neurons and used to carry "messages" to and from various parts of the body.  Despite its enormous performance, the human body is constantly evolving, but is a newcomer to the planet. In fact, considering that life on Earth was restored 24 hours ago, humans lived just the last 3 seconds. (geologic time). 


Anatomy  The branch of biological science that deals with the form and structure of organisms. Click to view a picture in front view of important organs of the human body, and here for another drawing in lateral view.
It is closely related to physiology.


physiology
It is a branch of biological science that deals with the body's normal functions.
Two special methods are used for the study of anatomy, systematic and topographical. In the first we consider the body formed by organ systems or devices that are similar in origin and structure and are associated in performing certain functions.
The Systematic Anatomy divisions are:
osteology:
Description of the skeleton.
Arthrology:
Description of the joints.
Myology:
Description of the muscles.
Splanchnology:
subdivided into:
a. Digestive System b. Respiratory c. Urogenital System: it is divided into:
* Urinary Organs * Fondling
Angiology:
Description of the organs of circulation.
Neurology:
Description of the nervous system.
Estiología:
Description of sense organs.


Conclusions
1-Atra time of this work we develop new knowledge about Humnado body and its parts.
2-capaciadades knowing them we can distinguish the parts of our human body without needs to use book, magazines.


By : Daniela Garcia Taborda