Quick Answer: What Are The 78 Organs?

What are the 3 most important organs?

Humans have five vital organs that are essential for survival.

These are the brain, heart, kidneys, liver and lungs.

The human brain is the body’s control center, receiving and sending signals to other organs through the nervous system and through secreted hormones..

Who has the largest head in the world?

A young boy from India has undergone successful surgery to correct a condition which saw him possess the world’s largest head. Mrityunjay Das, who is just seven months old and suffers from hydrocephalus, was relieved of nearly four litres of fluid, which inflated his face to the size of a watermelon.

Who named 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.

What is the fastest thing in the human body?

The eye: the fastest muscle in the human body.

What is the most essential organ?

While your heart is a vital organ, the brain (and the nervous system that attaches to the brain) make up the most critical organ system in the human body. The human nervous system is responsible for coordinating every movement and action your body makes.

Whats the smallest thing in the world?

quarksProtons and neutrons can be further broken down: they’re both made up of things called “quarks.” As far as we can tell, quarks can’t be broken down into smaller components, making them the smallest things we know of.

What are the 14 major organs?

Terms in this set (6)Nervous System. Brain, Spinal Cord.Digestive System. Esophagus, Gallbladder, Small Intestine, Large Intestine, Liver, Stomach.Cardiovascular System. Heart.Urinary System. Kidney, bladder.Respiratory System. Lung, Trachea.Endocrine System. Pancreas.

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 are the 12 organs of the body?

They are the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems. Only the reproductive system varies significantly between males and females.

What is the largest organ on the human body?

SkinBody organs aren’t all internal like the brain or the heart. There’s one we wear on the outside. Skin is our largest organ—adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it.

Is blood an organ?

Blood is both a tissue and a fluid. It is a tissue because it is a collection of similar specialized cells that serve particular functions. These cells are suspended in a liquid matrix (plasma), which makes the blood a fluid.

What are humans made of?

Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium. All 11 are necessary for life.

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 is the most useful body part?

It is actually your Brain and the Nerve System. These nerves have direct and indirect connection to the heart, digestive system, immune system, and the skeleton. The most important part of your body is your Brain and Nerve System.

Which is largest human cell?

The sperm is the smallest cell in human biology, but also one of the most complex. The egg meanwhile is the largest cell and similarly intricate. Looking further out into the natural world, the diversity of these sex cells, or gametes, is truly remarkable. Most species have two gametes, which we term male and female.

What are the 7 Major organs of the human 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.

What is the smallest organ in the human body?

pineal glandWhat’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 is the hardest bone in the human body?

The hardest bone in the human body is the jawbone. The human skeleton renews once in every three months. The human body consists of over 600 muscles.

Which organs can you live without?

Here are some of the “non-vital organs”.Spleen. 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 largest cell in the world?

Biologists used the world’s largest single-celled organism, an aquatic alga called Caulerpa taxifolia, to study the nature of structure and form in plants. It is a single cell that can grow to a length of six to twelve inches.