What Is The Most Important Organ System?

What is the difference between organs and systems?

An organ is a structure made of two or more tissues that work together for a common purpose.

Skin, the largest organ in the body, is shown in Figure below.

An organ system is a group of organs that act together to carry out complex, interrelated functions, with each organ focusing on a subset of the task..

What are the 5 main 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 are the 11 major organ systems and their main functions?

There are 11 major organ systems in the human organism. They are the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems.

What are the main organ system in our body?

Organ Systems of the Human BodyOrgan SystemFunctionsSkeletalSupports and moves body Protects internal organs Mineral storage Blood formationMuscularLocomotion Heat productionNervousCoordinates activities of other organ systems Responds to sensationsEndocrineRegulates body functions by chemicals (hormones)7 more rows

What are the 10 major organ systems?

Ten major systems include the skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and the reproductive system. Body functions are the physiological or psychological functions of body systems.

What is the largest 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 are the 78 organs in the human body?

Among these 78 organs, five organs are considered as vital for survival. These include the heart, brain, kidneys, liver and lungs….Types of Organs in a Human Body.Adrenal GlandsBladderHeartKidneysPancreasPharynxThymus GlandTongueTestesSeminal vesicles13 more columns

Which body system is the least important?

The appendix is essentially the least important organ. The appendix has the role of releasing healthy bacteria in the large intestine, but it’s still rather useless.