Quick Answer: What Is The Lightest Organ In The Human Body?

What organ makes up 2% of body weight?

The adult human brain accounts for 2% of our total body weight and weighs roughly 1.5kg, once again depending on one’s size and age.

There’s an ongoing debate about the link between brain size and intelligence..

Which body part is most important?

The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings—all the things that make us human.

What animal has 32 brains?

Leeches2. Leeches have 32 brains. A leech’s internal structure is divided into 32 separate segments, and each of these segments has its own brain. In addition to that, every leech has nine pairs of testes — but that’s another post for another day.

What are the top 10 body organs?

Some of the easily recognisable internal organs and their associated functions are:The brain. The brain is the control centre of the nervous system and is located within the skull. … The lungs. … The liver. … The bladder. … The kidneys. … The heart. … The stomach. … The intestines.

How heavy is a human leg?

Mean Segment WeightsSegmentMalesAverageForearm & Hand2.522.295Total Leg16.6817.555Thigh10.511.125Leg4.755.0511 more rows

What organs can I live without?

Seven body organs you can live withoutSpleen. This organ sits on the left side of the abdomen, towards the back under the ribs. … Stomach. … Reproductive organs. … Colon. … Gallbladder. … Appendix. … Kidneys.

What is the heaviest organ in the human body?

liverThe largest solid internal organ is your liver. It weighs approximately 3–3.5 pounds or 1.36–1.59 kilograms and is about the size of a football. Your liver is located beneath your rib cage and lungs, in the upper right area of your abdomen.

How much do all of your organs weigh?

The NumbersOrganAverage Weight in Men (grams)Range in Women (grams)Right kidney16245-360Left kidney16040-300Spleen15633-481Thyroid255-685 more rows

Which body part is only found on humans?

Found only in humans, the hyoid bone is the only bone in the body that is not connected to any other, and is the foundation of speech. This horseshoe-shaped bone in the throat is situated between the chin and the thyroid cartilage.

What is the longest thing in your body?

HumansThe longest bone in the human body is the femur.The largest artery is the aorta and the largest vein is the inferior vena cava.The largest internal organ (by mass) is the liver, with an average of 1.6 kilograms (3.5 pounds).The largest external organ, which is also the largest organ in general, is the skin.More items…

What is the most fragile organ?

LungsLungs are the most fragile organ.” You’ve never had interest in scuba diving or smoking, so you’re fine with this.

What race has the smallest brain?

Caucasians had the largest brains, and Africans the smallest.

What is the most useless body part?

appendixThe 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.

How heavy is the human brain?

An adult brain weighs about 3 pounds The heaviest normal human brain weighed 4.43 pounds.

Which is heavier brain or liver?

The mean weight of the brain was 1407 g (range, 1070-1767 g), that of the liver was 1561 g (range, 838-2584 g), that of the spleen was 139 g (range, 43-344 g), that of the right lung was 445 g (range, 185-967 g), that of the left lung was 395 g (range, 186-885 g), that of the right kidney was 129 g (range, 79-223 g), …

Can a person live without a liver?

The liver is so crucial to existence that while you can live with only part of a liver, you can’t live without any liver at all. Without a liver: your blood won’t properly clot, causing uncontrolled bleeding. toxins and chemical and digestive byproducts will build up in the blood.

Who has the biggest human brain in the world?

The volume of the human brain has increased as humans have evolved (see Homininae), starting from about 600 cm3 in Homo habilis up to 1680 cm3 in Homo neanderthalensis, which was the hominid with the biggest brain size….Development.NameBrain size (cm3)Homo neanderthalensis1200–1750Homo sapiens14004 more rows