Answer:
The answer is Pulmonary alveoli
Explanation:
Pulmonary alveoli are the primary gas exchange site. The alveoli are in intimate contact with the surrounding capillaries, removing the CO2 from the blood and passing the oxygen through a pressure gradient. This barrier between air and blood has a thickness of approximately one micron. To maintain this exchange gradient to the lungs, between 5 and 8 L of air per minute must enter.
Answer:
. wash your hand with soap before eating.
. use mask before went out.
. stay home when you fell unwell.
. cover your mouth and nose when coughing or sneezing.
. Avoid touching your face, eyes, etc.
The right answer is True
Reason:
AV nodal block (also known as "heart block"), occurs when conduction between the atria and the ventricles is impaired due to damage of the specialized conducting tissue.
