circulatory
we breathe in oxygen and we release carbon dioxide
The lungs are in the respiratory system. This system is used mainly for transporting oxygen to the blood and exhaling carbon dioxide from the body.
respiratory
Respiratory system
The respiratory system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment.
The system that is responsible for delivering nutrients and oxygen and removing wastes and carbon dioxide is actually three different systems. These systems are the respiratory, digestive and circulatory systems.
Respiratory system.
The organs in the respiratory system are responsible for oxygenating the blood and for expelling built up carbon dioxide.
Respiration ! The process by which CO2 is exhaled from the lungs and is replaced by O2
The circulatory system is responsible for transporting hormones from endocrine glands to target tissues.
The respiratory system, which includes (basically) the naso/oropharynx, the epiglottis, larynx (commonly: Adam's apple - consisting of the Thyroid cartilage, cricothyroid membrane, and the cricoid cartilage), the trachea, carina, left and right bronchi, smaller bronchioles, terminal bronchiole, and then the alveoli, where the actual exchange of oxygen and carbon dioxide essentially takes place.
The blood system