Question

please give ans to these questions. I know that this take much time but help .

Answer 1

Q2) a) CILIATED EPITHELIUM LINING THE RESPIRATORY TRACT :
functions as a barrier to potential pathogens and foreign particles, preventing infection and tissue injury by the action of mucociliary clearance.

b) MITOCHONDRIA :
function as taking nutrients from the cell Andy and breaks down to produce energy

c) DIAPHRAGM :
an important function in respiration: as the diaphragm contracts, the volume of the thoracic cavity increases and air is drawn into the lungs.

d) INTERCOSTAL MUSCLES :
The external intercostal muscles are responsible for forced and quiet inhalation.

e) PLEURAL FLUID :
Function. The pleural  fluid cavity, with its associated pleurae, aids optimal functioning of the lungs during breathing.

Q4) During emergencies invoking fear,anger, shyness, nervousness and anxiety.In a situation of fight or flight (confronting dangerous animals).In a condition when oxygen content in air is a bit low or you are surrounded by a relatively high amount , a condition of low or no air in case of suffocation(due to any blockages or drowning)

Q5) Keep your palm close to your mouth and blow out. You will feel warmer than the surrounding or you can blow on the mirror and observe the change on the mirror. You will notice some condensation on the surface of the mirror, that also prove that the air we blow out is wamer than the surrounding temperature.

Q6) The constant motion of cilia and mucous trap dust, micro-organisms, pollen and other minute particles present in the air. In this way, the respiratory passage is kept free of dust particles. We inhale air which contains more of oxygen and less of carbon dioxide.

Answer 2

study in your text book