What are the main human systems?

A system is an organization of varying numbers and kinds of organs so arranged that together they can perform complex functions for the body. Ten major systems include the skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and the reproductive system.

What is the main function of the human system?

Body Systems, Functions, and Organs

Body System	Primary Function
Cardiovascular/Circulatory	Blood circulation
Digestive	Processing food
Endocrine	Hormone production
Urinary	Waste elimination

What are the 3 human 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.

What is an example of a human system?

The human body is comprised of a series of complex systems, including the skeletal system, the respiratory and digestive systems, as well as the intricate networks of blood and lymph vessels, all controlled by the brain and nervous system.

What is the hardest body system to learn?

Students enrolled in this undergraduate human anatomy course overwhelmingly reported that the nervous system was the most difficult organ system to learn due to issues relating to its complex structure-function relationships.

What are the 11 systems in the human body?

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 important organ in the body?

Anatomy & Function 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?

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 many organ systems are in human body?

What is the most useless organ?

appendix
The appendix may be the most commonly known useless organ.

What is the smallest organ in your body?

Pineal gland
Therefore, the Pineal gland is the smallest organ in the body.

What is the smallest organ in the human body?

What organs can I 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.

Which body part has no bones?

It is hardly larger than a grain of rice. The ears and nose do not have bones inside them. Their inner supports are cartilage or ‘gristle’, which is lighter and more flexible than bone. This is why the nose and ears can be bent.

What organ is the fattest?

brain
Your brain also contains cells, nerve fibers, arteries, and arterioles. It also contains fat and is the fattiest organ in the body — nearly 60 percent fat.

Which is the weakest bone in your body?

Clavicle: Clavicle, or collar bone, is the body’s softest and weakest bone. It is easy to break since it is a thin bone that runs horizontally between your breastbone and shoulder blade.

What is the heaviest organ in the body?

liver
The 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.

What is the most useless body part?