What are the 4 main organ systems?

Contents
  • Integumentary System (Skin, Hair, Nails)
  • Musculoskeletal System.
  • Lymphatic System (Red Bone Marrow, Thymus, Lymphatic Vessels, Thoracic Duct, Spleen, Lymph Nodes)
  • Respiratory System – (Nasal Cavity, Pharynx, Larynx, Trachea, Bronchus, Lung)


What are the main organ systems?

The human organism consists of eleven organ systems. 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). Figure 5.1.

What are the 5 major organ systems?

These five systems are: circulatory, respiratory, skeleton, digestive, and nervous.


How many main organ systems are there?

The human body systems

There are 11 major organ systems in the human body.

What are the 3 main organ systems?

Some examples of organ systems and their functions include the digestive system, the cardiovascular system, and the musculoskeletal system.


12 Organ Systems | Roles & functions | Easy science lesson



What are the 8 main organ systems?

  • Skeletal system. The skeletal system is composed of bones and cartilages. ...
  • Muscular system. The muscular system consists of all the body muscles. ...
  • Cardiovascular system. ...
  • Respiratory system. ...
  • Digestive system. ...
  • Urinary system. ...
  • Endocrine system. ...
  • Lymphatic system.


What are the 7 vital organs?

Scientific view
  • The brain. The brain is the control centre of the nervous system and is located within the skull. ...
  • The lungs. The lungs are two sponge-like, cone-shaped structures that fill most of the chest cavity. ...
  • The liver. ...
  • The bladder. ...
  • The kidneys. ...
  • The heart. ...
  • The stomach. ...
  • The intestines.


What is the most important organ system?

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.


What are types of organs?

Types of Organs
  • Integumentary (skin, hair, nails)
  • Skeletal (bones)
  • Muscular (smooth, cardiac, and skeletal muscles)
  • Circulatory (heart, arteries, veins)
  • Respiratory (lungs, diaphragm, larynx)
  • Digestive (stomach, intestines, liver)
  • Urinary (kidneys, ureters, bladder)
  • Immune (lymph nodes, bone marrow, thymus)


How do all 4 body systems work together?

Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin. Your nervous system controls all these activities with electrical impulses.

What organ is no longer useful?

The appendix may be the most commonly known useless organ.

Many years ago, the appendix may have helped people digest plants that were rich in cellulose, Gizmodo reported. 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 you not live without?

Vital organs
  • Brain. The brain is the body's control center. ...
  • Heart. The heart is the most important organ of the circulatory system, which helps deliver blood to the body. ...
  • Lungs. The lungs work with the heart to oxygenate blood. ...
  • Liver. The liver is the most important organ of the metabolic system. ...
  • Kidneys.


What organs can you live without?

You'll be surprised as to how much you could lose and still live. You can still have a fairly normal life without one of your lungs, a kidney, your spleen, appendix, gall bladder, adenoids, tonsils, plus some of your lymph nodes, the fibula bones from each leg and six of your ribs.

What organs don't you need?

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 your largest organ?

The skin is the body's largest organ.

Which is the most sensitive organ in our body?

  • The skin is our body's most sensitive organ.
  • The skin is the largest organ of the body, made up of water, nutrients, lipids, and mineral deposits.
  • The skin tries to defend you against pathogens and regulates your body temperature.
  • The skin nerve endings help us to feel heat and cold.


What are the 12 main system of the human body?

The different systems of our body include- cardiovascular system, endocrine system, digestive system, respiratory system, excretory system, lymphatic system, nervous system, muscular system, and skeletal system.


What are the 11 organ systems called?

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

What are 9 major organ 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 / Urinary system.


What body part doesn t grow?

Answer: The eyeball is the only organism which does not grow from birth. It is fully grown when you are born. When you look at a baby's face, so see mostly iris and little white. As the baby grows, you get to see more and more of the eyeball.


What organ does not grow back?

However, this is not the case with all patients; some will require a liver transplant following the resection because their liver tissue does not re grow.

What organ never stops growing?

One of the most obvious examples is people with genetic baldness, whose hair stops growing at a certain point, causing them to go bald. The ears and nose, therefore, seem to be the surest, most consistent, and most easily observable answer to the question of the two parts that never stop growing on the human body.
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