What are the major organ systems of the human body?

Answer 1

Well, there is more than one system. But if you want to know some, I`ll tell you.

1. Your Nervous System it has the brain, spinal cord, and all the nerves that send messages to your brain about everything, ex: what your touching, seeing, hearing, digesting food, your heart beat, and even breathing.

2. Your Circulatory System has the heart, artertys and veins, which carry blood to and from your heart. It also receives oxygen from your lungs and transports it throught the body.

3. Your Skeletalmuscular System consists of the bones and muscles. The bones protect important parts of your body such as The spinal cord, which sends messages to your brain, your skull, which protects the brain and everything in it. The Jaw bone is the only bone in you skull that can move.

4. Your Digestive System consists of your esophagus, your stomach, your small and large intestines. The digestive system starts when chewing on your food. You swallow and muscles squeeze the food down the esophagus. This squeezing is called peristalis. Once down the esophagus, it enters the stomach and mixes with a liquid to create a new liquid called Chyme. The Chyme then enters the small intestine to be broken down even further. The solid food then enters the large intestine and then is changed into a substance called Feces.

5. Your Exetory System consists of your kidneys, your ureters, the bladder and the uretha. In this system, water collects waist and enters the kidneys. At the kidneys, it goes down a long tube called ureters, which lead into the bladder.

6. The Skin System consists of two layers of skin, the epidermis and the dermis. The epidermis is the outside layer of the skin that you can see. But what you a really seeing is dead skin cells. At the bottom of the epidermis, you are always making new skin cells no matter what. Once the skin cells are done, the make there way to the top of the epidermis. The dead skin cells flake off and are left with the new cells.

I hope that will help you! If you need anything else, my username is:

Samantha8833

Answer 2

The two [ 2] important major organs in the human Body.

• Reproductive System
• Digestive System

Answer 3

Skeletal, Muscular, Circulatory, Nervous, Respiratory, Digestive, Endocrine, Excretory, Reproductive, Lymphatic.

Answer 4

There are ten organ systems; they are circulatory, respiratory, digestive, nervous, muscular, skeletal, intugementary, reproductive, excretory and endocrine