Respiratory: Breathing And Stuff

Respiratory

Breathing and stuff

O2 diffusing from the alveoli into the blood ' CO2 from the blood into the alveoli

Because the alveoli are so small there are huge numbers of them which results in a large surface area for gas exchange. The wall of the alveoli is made up of a single layer of thin cells and so are the capillaries, this creates a short diffusion distance for the gases. Therefore this allows rapid gas exchange. The alveoli are covered by a dense network of blood capillaries which have a low oxygen and high carbon dioxide concentrations. This allows oxygen to diffuse into the blood and carbon dioxide to diffuse out of the blood.

Alveoli

An infection of the alveoli. It can be caused by many kinds of both bacteria and viruses. Tissue fluids accumulate in the alveoli reducing the surface area exposed to air. If enough alveoli are affected, the patient may need supplemental oxygen. Symptoms:cough, chest pain, fever, and difficulty in breathing

It narrows the tubes present in the lungs during an acute attack, which makes it more difficult for the sufferer to breathe. Coughing, wheezing and shortness of breath are symptoms asthma sufferers are used to. Cause: Allergic Rhinitis, Heredity, Bronchial IrritabilityTreatment: Inhaler

Blood

LUNGS

Pneumonia

Asthma

The function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body.