Mucus
The respiratory system is the system that handles breathing.
Meninges
the septum
The epithelial lining of the gastrointestinal tract is called the mucosa. It is composed of specialized cells that help with absorption, secretion, and protection within the digestive system.
The lining of the entire digestive tract is called the mucosa. It makes what we call mucous.
there is no shuch thig as a breathing system , its called the respiratory system , they are Lungs, Trachea, Bronchi, Alveoli, Diaphragm, Nose, and mouth ( FOR HUMANS)Read more: What_organs_are_in_the_human_respiratory_system
In science breathing is normally referred to as respiration. The mechanisms or organs that the body uses to breathe are called the respiratory system.
The brain is part of the nervous system and not the breathing (respiratory)system.
The respiratory system encompasses breathing.
Stop breathing and you will suffocate - so proving that our respiratory system is indeed the breath of life.
What is the role of the breathing passages in the immunes system
They respire through spiracles.