What Are The Main Body Parts Of A Human?

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..

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…

How much gold is in the human body?

An adult human body weighing 70 kg contains about 0.2 milligrams of gold. It’s been found that the element plays an important health function, helping to maintain our joints, as well as facilitating the transmittal of electrical signals throughout the body.

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.

Who named all the body parts?

When the ancient Greeks were naming body parts, they were probably trying to give them names that were easy to remember, says Mary Fissell, a professor in the Department of the History of Medicine at Johns Hopkins.

How do we use different body parts?

Internal Parts of the Bodyheart – your heart pumps your blood around your body.lungs – when you breathe, the air goes into your lungs.veins – these transport blood through your body. … brain – this is your ‘thinking machine’ inside your head.throat – food goes down this to get to your stomach.More items…

How many organs are in the human body?

Altogether there are seventy-eight main organs within the human body. These organs work in coordination to give rise to several organ systems. Among these 78 organs, five organs are considered as vital for survival. These include the heart, brain, kidneys, liver and lungs.

What’s the smallest organ in the body?

What’s the smallest organ in the human body? You’ll find the pineal gland near the center of the brain, in a groove between the hemispheres. It’s not an organ like those in the abdominal cavity.

What are the components of a human?

The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you. They are found throughout your body, mostly as water but also as components of biomolecules such as proteins, fats, DNA and carbohydrates.

What is the hardest working organ in your body?

HeartHeart. Every cell in the body depends on this muscle, the body’s hardest-working organ.

What are 6 organs of the body?

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.

Are teeth organs?

Teeth are specialized organs that function to nourish and sustain life.

Are humans made of stardust?

Planetary scientist and stardust expert Dr Ashley King explains. ‘It is totally 100% true: nearly all the elements in the human body were made in a star and many have come through several supernovas. ‘

Is there gold in the human body?

The human body is composed of many elements, including Gold in trace amounts. According the technical treatise, The Elements Third Edition, written by John Emsley and published by the Clarendon Press, Oxford in 1998, the average person’s body weighing 70 kilograms would contain a total mass of 0.2 milligrams of gold.

What is the most important organ in the human body?

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 are the 12 parts of the body?

These different body systems include the skeletal, nervous, muscular, respiratory, endocrine, immune, cardiovascular/circulatory, urinary, integumentary, reproductive, and digestive systems.

Is skin the smallest organ?

The largest organ is the skin, while the smallest organ is the pineal gland, which produces the hormone melatonin. Some organs are necessary for survival; these are called vital organs. Humans have five vital organs that they cannot live without: the brain, heart, liver, kidneys, and lungs.

What is the strongest muscle in the human body?

masseterThe strongest muscle based on its weight is the masseter. With all muscles of the jaw working together it can close the teeth with a force as great as 55 pounds (25 kilograms) on the incisors or 200 pounds (90.7 kilograms) on the molars. The uterus sits in the lower pelvic region.

What are the 7 body systems?

The 11 organ systems include the integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems.

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.

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.