The human body can be compared to a city with various systems functioning like different city departments. The brain acts as the central command, akin to City Hall, relaying information throughout the body.
Lungs are the highway because they allow air to flow through the body and also rids of carbon dioxide when exhaling
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Epithelial Tissue are city walls because they provide protection
Endocrine System
testicles are factories because they store and produce sperm until the body is ready for its use
ovaries are a daycare because they help shelter and support the eggs before they are born or before use
adrenal glands is the drug store because it helps produce hormones that help with stress, blood pressure and metabolism
Pancreas is post office because it breaks down food that isnt in the stomach and moves into the bodies bloodstream
Excretory System
Bladder is sewage pipes because it stores urine which can allows to body to control urination
Urethra is sewage plant because it lets the urine flow through it to leave the body
Kidney is city sewage because they filter blood while removing waste your body doesn't need and prepare it to leave your body
Respiratory System
Diaphragm is city air filter because it is the muscle that moves the lungs during inhale and exhale to help take in air
Trachea is the entrance to the city it is part of the body's airway and helps the airflow to the lungs
Mouth and nose are river flowing through city because it allows air to flow into the body
Circulatory System
Blood are city workers because they supply necessities to cells and tissues like oxygen and nutrients, they also flow around while removing waste and help fight off foreign objects
Blood vessels are Bus station because they allow blood to pass through the body while transporting nutrients
Heart is water supply because it is a pump that carries oxygen, nutrients and necessitate and pumps it into the lungs
