HEART AND LUNGS

TRACHEA
1. Otherwise known as the windpipe
2. 20 rings of cartilage
3. Widens and lengthens slightly with each breath in
BRONCHI
1. Main passage ways into the lungs
  1. Linked to the larynx
2. Turn into bronchioles as they get further into the lungs
3. Tiny airsacs called alveoli, where the exchange of oxygen and carbon dioxide takes place
4. Bronchitis is caused by swollen Bronchi, which means it gets harder to breath
HEART
1. The heart is a muscle and an organ that pumps blood around the body
2. Veins carry deoxygenated blood to the heart where it is reoxygenated and taken away in the arteries
3. Atriums pump blood into the opposite side's ventricle, were the blood is then carried away through the veins
4. The Aortic valve opens to let blood flow through to the body, then closes up again to stop blood flowing freely

Zusammenfassung der Ressource

	Erstellt von Alfie Kemp vor etwa 10 Jahre