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Probably in the tiny "balloons" called alveoli (singular, alveolus). Each has its walls filled with capillaries that bring in blood rich in carbon dioxide/low in oxygen. The carbon dioxide diffuses into the alveoli (then exhaled) while the oxygen just inhaled diffuses from each alveolus into the capillaries and is carried throughout the body. The heart pumps the blood constantly and permits this exchange in the lungs.
What else can I help you with?
How are alveoli and bronchi related?
Bronchioles are part of the respiratory system and branch from the bronchus. Air from the bronchus enters the terminal bronchioles that terminate in air sacs known as alveoli.
Are the air sacs a part of the circulatory or respiratory system?
Air sacs are part of the respiratory system
What system releases carbon dioxide into the air?
Respiratory System
What is the system that moves air into around and out of your body?
the respiratory system
What organ system moves air into around and out of your body?
The respiratory system is the organ system that moves air into and out of your body.
What are the body openings where air can be taken into the respiratory system?
Air can be taken into the respiratory system at the mouth and the nose.
How the nose helps to clean air as the air enters the respiratory system?
Mucus in the nose helps trap particles entering the respiratory system. The hairs/cilia of the respiratory system also filter incoming air.
What is the one organ in the respiratory system that doesn't touch air?
The diaphragm is the organ of the respiratory system that doesn't touch air.
What is the system that exchanges oxygen and carbon dioxide between blood and air?
The system that exchanges oxygen and carbon dioxide between blood and air is the respiratory system. This process occurs in the lungs, where oxygen is taken in from the air we breathe and carbon dioxide is released from the blood into the air we exhale.
What organ system does a lungs belong to?
The respiratory system. The alveoli are air sacs in the lungs.
What terminates in a grape-like cluster in the respiratory system?
The bronchioles terminate in a grape-like cluster of alveoli in the lungs.
What system brings air to and from the lungs?
The respiratory system.
