the respiratory system takes in oxygen from the air & the respiratory system transfers oxygen to the circulatory system ->  the respiratory system transports oxygen from the air to the circulatory system  blood is a vehicle for carrying oxygen from the lungs to the rest of the body & circulation the circulatory system transports blood throughout the body ->  the circulatory system brings oxygen from the lungs to the rest of the body  the respiratory system transports oxygen from the air to the circulatory system & the circulatory system brings oxygen from the lungs to the rest of the body ->  the respiratory system and circulatory system bring oxygen from the air to the rest of the body  the respiratory system and circulatory system bring oxygen from the air to the rest of the body & cells are a part of the body -> the respiratory system and circulatory system bring oxygen from the air to the cells of a body