Human Body Anatomy Organs and their Functions

Special parts of your body involved in performing certain functions are known as organs. Heart, brain and liver are the most significant organs. Every one of your cells is a worker that performs a single job. Groups of similar cells which act collectively at a single place are known as tissues. Organs are composed of numerous tissues, which combine to fulfil a bigger task. Human Body Anatomy Organs and their Functions help us see how our body works every day.

How Many Organs Are There?

The answer can vary. Prior to 2016, the majority answered 78 organs. Studies are altering our concepts of the body and hence currently researchers state that it can be between 78 to 80. The key organs include the heart, lungs, the brain and other significant organs. Experts argue about the exact number because there are two findings of 2016 and 2018. Those two are:

• The mesentery: It surrounds and envelops your lymphatic and immune systems of the gut. It is an organ among the 79 organs enumerated in the 2020 edition of Grey’s Anatomy.
• The interstitium: It is a system of liquid cavities between the cells which encompasses the entire body. It may be an organ too. Studies are still ongoing into the way these organs function and whether they are more.

What are the Vital organs?

The vital organs are those that you need to live. Issues affecting either of them may be life threatening. The five vital organs are:

• Brain
• Heart
• Lungs
• Liver
• Kidneys

1. Brain

It is one of the most vital human body anatomy organs. The brain is the control centre of the body. It generates, transmits and processes nerve impulses and thoughts or emotions and body feelings. It keeps us alive and healthy. There are three components of the brain: the cerebrum and the cerebellum and the brainstem. These together with the spinal cord comprise the central nervous system.

Major parts of the brain are:

• The medulla: this forms the lowest portion of the brain stem and controls the heart and breathing.
• The pons: This is located above the medulla and it assists in controlling eye and facial movements.
• The parietal lobe: It is located in the centre of the brain and it assists in recognising objects and performing spatial reasoning.
• The frontal lobe: The front segment of the head, the largest brain part. It processed personality and motion.
• The occipital lobe: This is located close to the back of the brain and its primary task involves the vision signals.
• The temporal lobes: They are located at both sides of the brain and aid in speech, smell and short-term memory.

The brain is divided into two parts. the right cerebral hemisphere and the left cerebral hemisphere with the corpus callosum in between.

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2. Heart

The most important organ of the circulatory system is the heart as it pumps blood in the body. It contains four chambers, two upper chambers referred to as atria and the other two lower chambers referred to as ventricles. The body systems are controlled by the heart, brain and the kidneys. Anatomy and organs together explain the structure and working of the human body.

The blood is pumped into the right atria by the veins (except the lungs) and this blood flows to the right ventricle. Then it flows to the pulmonary artery which splits to lungs where it receives oxygen. The blood that has been oxygenated passes through the pulmonary veins to the left atria and finally to the left ventricle. The blood is then pumped out by the heart into arteries which then branch to supply blood to the body.

Existence has four valves that make the blood flow in the right direction. Those valves are:

• Tricuspid valve
• Pulmonary valve
• Mitral valve
• Aortic valve

3. Lungs

The heart collaborates with the lungs in oxygenating blood. They achieve this by drawing oxygen in the air which we breathe and expelling carbon dioxide which is produced by our tissues. The study of anatomy and the human body informs us of the way our body is constructed and how it performs its daily activities. Inner organs of the human body play an important role in keeping us alive and healthy.

A number of sections of the lungs assist the body to receive air, its filtration and consequently oxygenate the blood. These are:

• Left and right bronchi: These tubes, which lead to the lungs and are branched, emerge out of the trachea. The smaller pulmonary bronchi divides into smaller tubes known as bronchioles.
• The alveoli: The alveoli are small air sacs at the end of the bronchioles. They act as balloons in that they will swell when an individual inhales and shrink once they exhale.
• The blood vessels: The lungs have numerous blood vessels which conduct blood in and out of the heart.

This is a thick layer of muscle just below the lungs known as the diaphragm. It aids in the expansion and contraction of the lungs during breathing by an individual.

3. Liver

The liver is the most significant organ in the metabolic system and it also assists nearly all other systems in the body. It transforms nutrients into useful substances and passes blood that enters into the body through the digestive system through a vein before combining it with the rest of blood in the body. The liver is fed through an artery with oxygenated blood. The lion is located in the upper right side of the belly and is just below the rib cage.

The liver has numerous processes in digestion and blood filtration and they include:

• Producing bile 
• Assisting the body to eliminate the toxic substances.
• Making cholesterol 
• Nourishing the immune system. 
• Excretion of bilirubin in the blood.
• Controlling blood clotting

The gallbladder liaises with the liver in order to release the bile to the small intestine. The bile is produced by the liver and emptied into the gallbladder, which retains and eventually empties it into the body when they require it to aid in food digestion. 

4. Kidneys

The kidneys are a couple of bean shaped organs, which are roughly the size of a fist. They are found on both sides of the back and secured in the lower section of the rib cage. They sift blood and eliminate wastes in the body. Body anatomy with organs shows how all parts are connected and function together. Blood enters through the renal artery into a kidney.

The nephrons pass the waste products into urine and the clean blood flows back to the body via the renal vein. An individual is capable of existing on one kidney. In an individual with a severe kidney failure, the dialysis process helps in cleaning his blood until a kidney transplantation procedure or, when the kidney begins functioning again. There are individuals who require hemodialysis over a long period of time.

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Final Thoughts

A body is a complex and composed set of organs which are complex in nature having many parts. Numerous organs are reliant on other body organs. As an example, the lungs need to collaborate with the nose, mouth, throat, windpipe and sinuses in order to breathe properly. This complication implies that there are physicians that specialise in a single organ or body system. As an illustration, cardiologists deal with heart conditions and pulmonologists with lungs.