You should be asking them if it is an appropriate show for you to watch. If I were a mother, I would not let my 13 year old watch it. There is a lot of adult content that is not suitable for someone your age. I'm an adult, and I don't even like the show. 1-0-0-1 Â· 5 years ago.
The heart and lungs are very closely connected. Not only do they fit closely together in the chest, but they also work together to make sure that every part of your body gets the oxygen it needs. In our discussion of how the heart works, we said that blood is pumped from the right side of your heart to your lungs. Just like the air you inhale moves through passageways, the blood that flows through your lungs moves through a set of branching pipes called pulmonary vessels.
Stem cells in the lung. Our lungs work hard. In an average lifetime, human lungs take 20-40 million breaths and experience a daily airflow of between 7000 and 10,000 litres. Mammalian lungs are made up of two distinct regions:1. The conducting airway tubes, including the trachea, bronchi, and bronchioles. 2.n normal lungs, progenitor cells are present in abundance throughout each region. These cells divide to replace old or damaged lung cells, which keeps the lung healthy. The progenitor cells include tracheal basal cells, bronchiolar secretory cells (known as club cells), and alveolar type 2 cells.