What's the smallest organ in the body?

The smallest organ in the body is the pineal gland, relative to its function.
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What is the smallest part in human body?

The cell. The cell is said to be the smallest part of the body which is alive. It is the structural and functional unit of life.
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Is skin the smallest organ?

To date, the skin is considered to be the largest organ. It covers your whole body and makes up about 16 percent of your overall body mass. Your skin is approximately 2 millimeters thick.
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What is the 2nd largest organ?

Did you know that your liver is the second largest? That makes it the largest solid internal organ you have, weighing in at 3-3.5 pounds. It is located underneath your ribs, lungs, and diaphragm, and on top of your gallbladder, stomach, and intestines.
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What is the most useless organ?

Appendix. The appendix is perhaps the most widely known vestigial organ in the human body of today. If you've never seen one, the appendix is a small, pouch-like tube of tissue that juts off the large intestine where the small and large intestines connect.
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The smallest organ in Human body



What organ can you live without?

While you can't live without your liver, you can live with just part of it. Your liver is the only organ in your body that can regrow after parts of it have been removed or damaged. In fact, it can grow back to its full size in just months.
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What body part does not grow?

Answer: The eyeball is the only organism which does not grow from birth. It is fully grown when you are born. When you look at a baby's face, so see mostly iris and little white. As the baby grows, you get to see more and more of the eyeball.
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What organ is not needed?

The appendix may be the most commonly known useless organ.

While plant-eating vertebrates still rely on their appendix to help process plants, the organ is not part of the human digestive system.
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What is the fattest human organ?

Your brain also contains cells, nerve fibers, arteries, and arterioles. It also contains fat and is the fattiest organ in the body — nearly 60 percent fat.
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What's the heaviest body part?

What are the six heaviest organs in the human body?
  • The skin is the body's first heaviest organ, with a mass of 4-5 kg, and a total surface area of about 1.2-2.2 m2. ...
  • The second heaviest is liver which secretes bile. ...
  • The third heaviest organ is the brain which is having an average weight of 1500g.
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Which body part has no bones?

The ears and nose do not have bones inside them. Their inner supports are cartilage or 'gristle', which is lighter and more flexible than bone.
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Is hair an organ?

Hair is an accessory organ of the skin made of columns of tightly packed dead keratinocytes found in most regions of the body.
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What is the smallest human bone?

Once there, the sound waves vibrate three bones known as the ossicles, which are made up of the malleus, the incus, and the stapes. The stapes is the smallest bone in the human body.
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What are the 5 main organs?

Vital organs
  • Brain. The brain is the body's control center. ...
  • Heart. The heart is the most important organ of the circulatory system, which helps deliver blood to the body. ...
  • Lungs. The lungs work with the heart to oxygenate blood. ...
  • Liver. The liver is the most important organ of the metabolic system. ...
  • Kidneys.
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Which is softest part in our body?

Answer:- The softest part is most likely the brain. It is the part that is most changeable due to external influences, and so, it is the "softest". Brain is the most delicate and soft organ of the human body.
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Where is the smallest bone in your body?

The smallest bones are in the ear

The smallest bones in the human body are the malleus (hammer), incus (anvil) and the stapes (stirrup). Collectively, these bones are known as the ossicles (Latin for “tiny bones”) and their role is to transmit sound vibrations from the air to the fluid in the inner ear.
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How heavy is the brain?

The adult human brain is about 2% of total body weight. Men listen with the left side of the brain and women use both sides of the brain. The average human brain weighs about 3 pounds.
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What weighs more heart or brain?

Claudia Reardon. The average human brain weighs about three pounds, representing about two percent of our body weight. The human heart pumps blood to the entire body, but actually pumps about 20 percent of its total blood output to the brain.
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What's the brain made of?

Brains are made of soft tissue, which includes gray and white matter, containing the nerve cells, non-neuronal cells (which help to maintain neurons and brain health), and small blood vessels. They have a high water content as well as a large amount (nearly 60 percent ) of fat.
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What is the most useless bone?

The Human Tailbone (Coccyx)

These fused vertebrae are the only vestiges that are left of the tail that other mammals still use for balance, communication, and in some primates, as a prehensile limb. As our ancestors were learning to walk upright, their tail became useless, and it slowly disappeared.
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What is the longest word in your body?

What does pneumonoultramicroscopicsilicovolcanoconiosis mean? Pneumonoultramicroscopicsilicovolcanoconiosis is a term for a lung disease caused by inhaling silica dust, as in I had trouble breathing and my doctor diagnosed me with pneumonoultramicroscopicsilicovolcanoconiosis.
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Did humans have a tail?

Much later, when they evolved into primates, their tails helped them stay balanced as they raced from branch to branch through Eocene jungles. But then, roughly 25 million years ago, the tails disappeared. Charles Darwin first recognized this change in our ancient anatomy.
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What part of the body Cannot feel pain?

The brain has no nociceptors – the nerves that detect damage or threat of damage to our body and signal this to the spinal cord and brain. This has led to the belief that the brain feels no pain.
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Do eyeballs grow?

During your first 2 years of life, they get bigger. Then during puberty, they go through another growth spurt. When you're in your 20s, they're fully grown at about 24 millimeters , a little larger than a peanut. Your eyes don't get bigger in middle age.
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What stays the same size from birth?

Your eyeballs stay the same size from birth to death, while your nose and ears continue to grow.
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