The tongue is a muscle in your mouth that helps you chew, swallow food and TALK.
So, the muscular system is my choice. Also, the tongue is the strongest muscle in the human body.
It has bones and it helps your body system and helps you move.
The excretory system helps in the removal of waste from the body.
The circulatory system helps move oxygen throughout your body.
The circulatory system!
The lungs is the part of the nervous body system. It helps in take in oxygen and give out carbon dioxide.------------------------------------------The lungs are part of the nervous system when you scream or talk. It is part of the respiratory system for when you breath in oxygen. It is part of the excretory system for when you breath out carbon dioxide.
The endocrine system.
Lymphatic system
skeletal system
skeletal system
circulatory system
skeletal system
The lymphatic system helps fight off microorganisms.