Q-Explain the mechanism of breathing??

 why is the human heart called myogenic?

 respiratory organs of various animals

1) What is sternum? Its function?and Location?

explain in brief with the help of diagram if possible

what is the difference between carboxyhaemoglobin and oxyhaemoglobin?

what does negative and positive pressure breathing mean ?

 Can anyone give me the sample paper of aakash institute admission cum scholarship test 

for medical for class eleventh to twelth moving students.

Sure for five thumbs up.

Please help my exam is on fifteenth january.

What is sleep apnea? Why is it caused? Is it a disease? If it is a disease, what are its symptoms? What is its cure?

 Role of haemoglobin in the transport of respiratory gases?????

PLZZ.. ANSWER ME FAST IT IS MY REQUEST:-)

Name the respiratory organs in :-

1-Butterfly

2- frog larva

3- Leech

4-Scorpian

plz..explain transport of oxygen & transport of carbon dioxide in our body???

why vigorous exercises sometimes result in muscle pain?