3/02/2015

Systems of the human body and its functions

Organ systems are a group of organs that work together for one goal.
The human body is composed of approximately 75 trillion cells that always works, has the task of each, and can work both with an outstanding management system.

The human brain is composed of approximately 10 billion complex, but great work together and knows each task, as well as work automatically with the speed which is pretty amazing. The brain regulates automatically how the heart has to beat, your lungs take oxygen from the air, regulate the digestive system, release digestive enzymes it needs with the right amount of time incoming food, regulate the body's defense system against disease, and more. Everything works automatically with a regular rhythm.

Several organs can be part of more than one system: for example, the pancreas is part of the digestive and endocrine systems in mammals.  Although the details may vary, all mammals, including humans, have the same organ system, ten in terms of function: digestive, circulatory, respiratory, urinary, nerve, muscle, bone, reproduction, endocrine and integumentary.

Some organs work together to form organ systems, there are many organ systems in the human machine, among other things:


The Respiratory System

The Respiratory System

Consists of the respiratory tract, from the nasal cavity, larynx, and lungs. Its function is to place the oxygen into the bloody and pull out the remaining substance metabolism are carbon dioxide and water vapor to the outside of the body.
This system allows the body to absorb oxygen – needed to extract energy from food –and to expel carbon dioxide, which is a byproduct of this process which should not reach levels toxic. The respiratory system consists of the lungs and Airways. Air duct is divided again over and over in each lung, the alveoli at the end – a small cavity of the oxygen absorbed by red blood cells, and where the flow of carbon dioxide, which will be issued when the animal breathed out.

The circulatory system

The circulatory system

Consists of the heart, blood vessels, blood and lymphatic circulatory system.
The circulatory system functions that are responsible for transporting nutrients and oxygen throughout the body to where they are needed, and to protect the body against disease-causing organisms. Both functions are sometimes classed separately as the lymphatic and cardiovascular system, respectively. Cardiovascular organs are the heart, blood vessels, and blood. The lymphatic system involving glands such as the spleen and thymus, which generate or modify cells called lymphocytes that are released into the bloodstream and destroy harmful organisms.

The System excretion

System excretion

Digestion, and others, is the process in which the body produces a number of waste materials that is released into the blood stream, and will accumulate to produce a number of toxic if not removed. Excretion system, which consists of the kidneys, bladder, and a connecting tube, provides the means to remove these substances.
This system organizes the global residual substances outside the body metabolism: urine is issued via the kidneys; perspiration secreted through the skin; bile secreted by the liver; carbon dioxide gas and water vapor expelled through respiration.
In addition, there is also a residual substance expenses the gut in the form of the stool that is expelled through the anus. Excretion system functions are important because the substance could poison the rest of the body if not removed.

The Digestive System

The Digestive System

Consists of the digestive tract, from the mouth, esophagus, stomach, duodenum, colon, intestine, anus to the SINKHOLE. In addition, the digestive system is also aided by the gland-gland that AIDS digestion, such as salivary gland, pancreas gland, and the liver produces bile. Functions of the digestive system are to prevent the food that goes into a meal offering that will be used by the body.
The function of this organ system is to change the essential nutrients in the food into a form that can be absorbed by the body. The digestive system consists of the mouth, esophagus, stomach, pancreas, liver and intestines. After the food has been chewed, it goes into the stomach, where the enzymes that digest the proteinuria are released, then into the intestine, where nutrients are absorbed. Absorption is aided by a liquid secreted by the pancreas and the liver, which helps in the breakdown of carbohydrates and fats.

Skeletal System

Skeletal System

As the name suggests, this system is basically the framework, although it also includes the ligaments and cartilage. The most obvious function of the bone to form this framework is to provide support for the body, but they also help protect vulnerable organs and serves as a lever for skeletal muscle pull something. Other functions, still less obvious, is the production of blood cells in the bone marrow, and storage of essential minerals, such as calcium and phosphorus, which can be released when needed.

The nervous system

The nervous system

The nervous system consists of the brain, spinal cord, nerves and sensory organs. Its function is twofold. First, it allows external stimuli, such as sights, sounds, smells and sensations to the sensory organs are conveyed from the brain, where they are interpreted. Second, it allows a signal to be sent from the brain through the spinal cord and nerves, muscles, causing them to move as directed.

There are two types of the nervous system, namely:
The autonomic nervous system, which works automatically without being able to consciously ruled, for example setting of breathing, heart rate, digestion of food, enzyme, hormone production, and so on. The autonomic nervous system is the key to Automation machine the human body.
The motor nervous system could consciously rule, for example, muscle-skeletal muscle can we order for driven where and what it looks like.

The muscular system


The muscular system

Muscle is composed of, a long thin cells can contract causes movement. The muscular system involves three types of muscles: skeletal, cardiac and smooth muscle.
Skeletal Muscle

Skeletal muscle under conscious control, and moving when directed to do so by the brain.

Heart Muscle

 Just in the heart of autonomous work, also without being able to consciously rule.

 Smooth Muscle

 Found in the organs of the body such as the intestines, blood vessels, lung, and others. This muscle can be ruled without autonomous working consciously.

The endocrine system

The endocrine system

This system is related to the production of various hormones that maintain the body chemistry and affect many body functions. It is controlled by the hypothalamus gland in the brain, but it involves a lot of other organs, including the thyroid gland, the pituitary gland, kidneys and pancreas. Hormones are produced by the endocrine system affect the growth, sexual development, the absorption of water and energy consumption, among others.

This system serves to produce the hormone hormones that regulate growth and balance of fluids and electrolytes the body systems. The endocrine system is made up of, the pituitary gland located at the base of the cerebrum and is the largest gland as an activity of other glands, mammary glands, son of mumps mumps, glandular childkidney, pancreas glands, genital glands, thymus gland's DNA.

The Reproductive System

The Reproductive System

The reproductive system is related to the production of cells that come together to form a new organism, by creating the possibility of fertilization of the egg cell, and by ensuring the development of secure early offspring. Organs differ between men and women.
In men, the main ones are the testes, prostate and penis, while in women, the major organs are the ovaries, uterus and vagina. The ovaries produce eggs that are fertilized by male sperm, produced in the testes. The embryo then develops inside the womb or uterus.


Integumentary system

The system integument or covering is better known as skin, hair and nails. Its functions to protect the body from injury, water loss and infections; to prevent excess heat by producing sweat; and to create vitamin D, which is produced in response to sunlight. Hair also keeps the body warm in cold weather.


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