The Human Body: Systems

By Hunter Butler

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The human body is extravagant. It is one of the most complicated thing that you use, that you are, everyday. You contain of 11 major things to make up your body, these major things are called systems. These systems give you the option to move, play and even think. The name of the 11 major systems are called the integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary and the reproductive system. Now I will answer what all of this means and what is in these systems.

What is in the Circulatory System, and What Does it do?

The circulatory has the job of transporting nutrients and blood from place to place to the places you need it. The circulatory system controls the way the blood goes and the circulatory contains blood vessels, capillaries, arteries and a muscle, the heart.

What Does the Integumentary System Do?

The integumentary system is the circulatory system's "right hand man." The integumentary system regulates body temperatures. The circulatory helps the integumentary because the capillaries open and close to conserve body heat. The integumentary system is also responsible for hormones and acts as a sense organ which is an organ of the body that responds to external stimuli by conveying impulses to the sensory nervous system.

What does the Muscular System do?

The muscular system contains every muscle in your body (this is including the muscle groups with the hip and pelvis, lower leg, neck and back, knee joint, wrist and hand, arm muscles and upper body muscles). These muscles help with movement and keeping your body in certain positions like when your sitting, doing sit ups or just standing, you are using your muscles.

What does the Skeletal System help with?

The skeletal system is just another fancy way of saying your bones. Your bones are the hard inside of a crunch bar. Without the skeletal system you would just be a blob on the floor, so it helps with the force, gravity. The skeletal system also helps with having something for your muscles to move because they work together to let you walk, run, and do daily activities.

What is in the Respiratory System and what does it do?

The respiratory system contains the lungs and the windpipe, also known as the trachea. As you might have guessed the respiratory system gives you the option to breath. The windpipe takes the gases from the outside and brings it to the lungs (inside). The lungs contract and expand to let air in and let the carbon dioxide out. The lungs then bring the oxygen into the blood flow leading to the muscles and heart, where you need the oxygen the most.

To think that our body is simple is the craziest thing you can say and think. Our body is made up of more than I have said in these few paragraphs. The body is complex and hundreds of things go into it to make it work.