BBC9 个月
KS2 Science: Respiration - how is oxygen transported round the body?
PRESENTER:Let's take a closer look. PRESENTER:You can see that his heart is pumping hard. His lungs are working hard to supply his body with oxygen, and his heart is beating quickly to send the ...
来自MSN11 个月
Lungs have their own microbiome – and these microbes affect the success of bone marrow ...
Pulmonary disease accounts for 16% of deaths after this procedure in kids ... strengthen the lungs of high-risk children before they undergo transplantation. [Get fascinating science, health ...