Lungs
The pulmonary artery takes the blood to the alveoli.
C02:alveoli
its nitrogen and is about 78% but the gas enter in our blood thourgh alveoli is oxygen.
All the human organs were known before Leonardo's time. The novelty was that he made sketches of them.
Muscular, nervous, skeletal, digestive, and cardiovascular are all organ systems which are made of organs i.e. muscular system is made of all the organs known as muscels. Another example is the skeletal system. The parts that form it are called bones, and are an example of organs.
lungs
By the alveoli
Alveoli
Alveoli
organs are made up of tissues, and tissues are made up of cells
organisms
The integumentary system is made up of the skin and its accessory organs.
A system made up of excretory organs is the urinary system.
Cells are made up of membranes, cytoplasm and organelles. Tissues are made up of Cells Organs are made up of Tissues Organs make up a System of Organs (Cardiovascular System,etc.) Systems make up Organisms
The alveoli
An organ system is made up of different organs that work together to perform specific functions in the body. Each organ in the system has a unique role that contributes to the overall function of the system.
cells make up tissues tissues make up organs organs make up body systems