You are currently viewing List of Organs in the Human Body, What is Organ? Types of Organs in the Human Body, Name of 78 Organs, Major Body Parts
List of Organs in the Human Body, what are the 12 organs of the body, types of organs,

List of Organs in the Human Body, What is Organ? Types of Organs in the Human Body, Name of 78 Organs, Major Body Parts

List of Organs in the Human Body: Organs are recognizable structures of the body (for example, the heart, lungs, liver, eyes, and stomach) that perform specific functions. An organ is made up of many types of tissues and therefore many types of cells. In biology, an organ (from the Latin “organum” meaning a tool or apparatus) is a collection of tissues that structurally form a functional unit specifically to perform a particular function. And your heart, kidneys and lungs are examples of organs.

In Hindi:

अंग शरीर की पहचानने योग्य संरचनाएं हैं (उदाहरण के लिए, हृदय, फेफड़े, यकृत, आंखें और पेट) जो विशिष्ट कार्य करते हैं। एक अंग कई प्रकार के ऊतकों और इसलिए कई प्रकार की कोशिकाओं से बना होता है। जीव विज्ञान में, एक अंग (लैटिन “ऑर्गनम” से जिसका अर्थ है एक उपकरण या उपकरण) ऊतकों का एक संग्रह है जो संरचनात्मक रूप से एक विशेष कार्य करने के लिए विशेष रूप से एक कार्यात्मक इकाई बनाता है। और आपका हृदय, गुर्दे और फेफड़े अंगों के उदाहरण हैं।

What is an organ?

An organ is composed of a single type of tissue, which is well-organized to perform specific functions in all living things, including plants, animals, birds, insects, reptiles, mammals, and humans.

Organs collectively make up the organ system. These organs are gross in structure. The brain, heart, lungs, liver, and kidney are some examples of organs.

Human anatomy is mainly concerned with the study of the structure of internal organs and physiology is concerned with the study of the functioning of internal organs. The study of visceral organs is Splanchnology.

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Types of organs in the Human Body

Altogether there are seventy-eight main organs within the human body. These organs work in coordination to give rise to multiple organ systems. Of these 78 organs, five are considered important for survival. These include the heart, brain, kidneys, liver, and lungs. If any of these five organs stop functioning even for a few seconds, death will occur without any medical intervention. Hence, it is always advised by doctors to keep our system healthy, maintain a balanced diet, get enough sleep, do regular physical activities and focus on healthy lifestyle changes.

List of 78 Organs in the Human Body

ArteriesCerebellumLiverNasal CavitySpleenTongue
Adrenal GlandsEarsLarynxOesophagus / EsophagusStomachTrachea
BrainEyesLigamentsPenisSpinal CordThymus Gland
BonesFallopian TubesLymph NodesPancreasSmall IntestineUreters
BronchiGenitalsLarge IntestinePharynxSalivary GlandsUrethra
BladderGall BladderLymphatic vesselPlacentaSkeletal MusclesUterus
Bone MarrowHeartMouthProstateSeminal vesiclesVulva
Bulbourethral glandsHair follicleMesenteryPineal GlandSubcutaneous tissueVeins
ColonHypothalamusMammary GlandsPituitary GlandTeethVagina
CervixInterstitiumNoseParathyroid GlandsTonsilsVas deferens
ClitorisKidneysNailsRectumTestesVestigial organ
List of Organs in the Human Body
List of Organs in the Human Body
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The Largest organ in the human body

Based on the weight and length of the body parts, they are classified as the longest organs in the human body. These organs are macroscopic and are involved in many functions.

Altogether there are 10 large organs in the body, including the skin, liver, brain, lungs, heart, kidneys, spleen, pancreas, thyroid, and joints. Some of them are explained in detail below.


The skin is the largest external organ of the human body. It is an important organ and provides the outer covering, which protects from external elements. It also functions by protecting our internal organs from pathogens, regulates the temperature and pH of our body, prevents dehydration and also acts as the main sense organ. In both animals and humans, the skin acts as a barrier between the external and internal environments. The skin occupies an area of ​​19 to 20 square feet on the surface of our body. That is why it is called the largest external organ of the human body.


The liver is the largest internal organ in the human body, weighing between 1.3 and 1.5 kg. The liver is located in the upper right part of the abdomen and is the only organ found among vertebrates. It is triangular, bilobed in structure and has over 500 functions including blood clotting, protecting against invading pathogens, synthesizing hormones and proteins and secreting various enzymes and chemicals.

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Major Body Parts

As discussed above, all 78 organs are important as they are associated with specific functions in our body. There are some organs, which are very essential for the survival of a person, so they are called major or important organs of the body. These organs are the hardest working organs in the human body, working 24 x 7.


It is the most complex part of our body. The human brain is located in our head and is surrounded by a strong bony structure called the skull and is suspended in a layer of fluid called cerebrospinal fluid, which functions by protecting the brain from minor mechanical shocks and shocks. . The brain, along with the spinal cord, composes the central nervous system. It is responsible for the thought, interpretation, regulation and control of the body’s movements.

Some Internal Organs


The human heart is one of the most important organs in the human body. The human heart keeps on beating till the death of the person. On average, our heart beats seventy times per minute, which is close to forty-two hundred times per hour and pumps about 2,000 gallons of blood every day. Regarding position, the human heart is located in the thoracic cavity in the middle of the lungs, slightly to the left and behind the breastbone. Two-thirds of the heart is located on the left side of the chest, and the rest is balanced on the right side of the chest. The average size of an adult’s heart is equal to the size of our two hands fused and a child’s heart is about the size of a fist.

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Humans have a pair of lungs, which are located within the thoracic cavity of the chest. The lungs play a major role in the respiratory system. In humans, a pair of lungs is structured in such a way that it facilitates the exchange of gases. They are lined by a thin membrane, the presence of bronchioles – small tubes, alveoli – a balloon-like structure and clusters of blood capillaries, which expand the surface area for the exchange of gases.


The pancreas is an important part of the human digestive system and is responsible for controlling blood sugar levels. It is an abdominal organ located behind the abdomen and surrounded by the spleen, liver and small intestine. It is also involved in the production of hormones such as glucagon, insulin, somatostatin and pancreatic polypeptide, and in secreting digestive enzymes such as protease, amylase and lipase in the duodenum.


The kidneys are an important part of the excretory system. They are bean-shaped structures located on either side of the spine and protected by the ribs and muscles of the back. It works by filtering out excess water and removing harmful toxins from the blood. Along with excretion, the kidneys also produce a hormone called renin, which regulates blood pressure.


The eye is a special sense organ that helps us to see the world around us. They are the visual sensory organs in our body, which are sensitive to light images. The human eye is different from the animal’s eye. In structure, it is a circular-shaped organ, enclosed within the eye socket in the skull and anchored below by muscles within the socket.

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Small Intestine

The small intestine is the longest part of the alimentary canal and is a part of the digestive system that runs between the stomach and the large intestine. It is narrower than the large intestine and is responsible for the absorption of nutrients from digested food, secretion of intestinal juices, bile juice from the liver and pancreatic juice from the pancreas.

Organs of the Human Body

FAQs on List of Organs in the Human Body

How many organs does a human have?

They perform important life-supporting functions, such as pumping blood or eliminating toxins. Many resources state that there are 79 known organs in the human body. Together, these structures keep us alive and make us who we are.

What are the 5 important organs?

Humans have five vital organs that are essential for survival: the brain, heart, kidneys, liver, and lungs.

Which organ carries the most blood?

In terms of the organ to which the most blood is pumped, the liver receives the largest share of the body’s circulating blood compared to all other organs.

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What is in the human heart?

You have two chambers at the top (atrium, plural atria) and two at the bottom (ventricles), one on each side of the heart. Right atrium: Two large veins deliver deoxygenated blood to your right atrium. Superior vena cava carries blood through your upper body.

Which part of the human body does not contain blood?

The only part of the body that does not have a blood supply is the cornea in the eye. It takes oxygen directly from the air.

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