Quick Answer: What Are The Most Important Organ Systems?

What are the 5 most important organs in the human body?

Vital Organs The human body contains five organs that are considered vital for survival.

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

What is one of the most important functions of organ systems?

One of the most important functions of organ systems is to provide cells with oxygen and nutrients and to remove toxic waste products such as carbon dioxide. A number of organ systems, including the cardiovascular and respiratory systems, work together to do this.

What are the 13 systems in the human body?

They are Integumentary System, Skeletal System, Muscular System, Nervous System, Endocrine System, Cardiovascular System, Lymphatic System, Respiratory System, Digestive System, Urinary System, and Reproductive System (Female and Male).

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 weirdest thing about the human body?

The Weirdest Facts About the Human Body That You Had No Idea Were RealThe acid in your stomach can dissolve razor blades. … You produce enough saliva to fill two swimming pools in a lifetime. … Babies have over 300 bones — but adults only have 206. … Your brain can’t feel pain.More items…•

What are the 3 most important body systems?

The main systems of the human body are:Circulatory system / Cardiovascular system: … Digestive system and Excretory system: … Endocrine system: … Integumentary system / Exocrine system: … Immune system and lymphatic system: … Muscular system: … Nervous system: … Renal system and Urinary system.More items…

What is the biggest organ in the human body?

Body 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.

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.

Which is superior heart or brain?

“The heart is the most powerful generator of electromagnetic energy in the human body, producing the largest rhythmic electromagnetic field of any of the body’s organs. The heart’s electrical field is about 60 times greater in amplitude than the electrical activity generated by the brain.

Which is the thinnest bone of human body?

stapesThis stirrup-shaped bone is connected to the oval window by its annular ligament, which allows the footplate to transmit sound energy through the oval window into the inner ear. The stapes is the smallest and lightest bone in the human body, and is so-called because of its resemblance to a stirrup (Latin: Stapes).

Which organ of the body works 24 hours?

LiverLiver: The liver has many jobs, most of which are essential for life. If your liver stopped working entirely, you’d die within about 24 hours. (And one thing that can destroy it, after a few day’s delay, is a massive overdose of Tylenol.) It’s the second largest organ in the body, second only to the skin.

What are the 10 most important organs?

List of 10 Vital Organs of the Body Essential to Human LifeSkin.Brain.Heart.Kidneys.Liver.Pancreas.Stomach.Small Intestine.More items…•