Mechanism Of Breathing

Question 1

What initiates inspiration?

Answer 1

Inspiration is initiated by the contraction of the diaphragm.

Question 2

What role do external intercostal muscles play in breathing?

Answer 2

The contraction of external intercostal muscles lifts up the ribs and increases the volume of the thoracic chamber.

Question 3

What is the pressure condition for inspiration to occur?

Answer 3

Inspiration occurs when the intra-pulmonary pressure is lower than the atmospheric pressure.

Question 4

What happens during expiration?

Answer 4

Expiration occurs when the pressure within the lungs is higher than the atmospheric pressure.

Question 5

What is the movement of air into and out of the lungs called?

Answer 5

The movement of air into and out of the lungs is called breathing.

Question 6

What are the two stages of breathing?

Answer 6

Breathing involves two stages: inspiration and expiration.

Question 7

What is tidal volume?

Answer 7

Tidal volume is the amount of air inspired or expired during normal breathing.

Question 8

What is the role of internal intercostals in breathing?

Answer 8

Internal intercostals help in generating pressure gradients during expiration.

Question 9

What is the significance of gas exchange in breathing?

Answer 9

Gas exchange involves the diffusion of O2 and CO2 between the lungs and the bloodstream.

Question 10

Diagram which increase the volume of thoracic cavity in the

Answer 10

Antero posterior axis

Question 11

Diagram which increase the volume of thoracic cavity in the

Answer 11

Antero posterior axis

Question 12

The contraction of external intercostal muscle lift up the rapes and sternum causing and increase in the volume of thoracic chamber in the

Answer 12

Dorso ventral axis

Question 13

And increasing pulmonary volume

Answer 13

Decrease the intra pulmonary pressure to less than atmospheric pressure which force the air from outside to move into the lungs

Question 14

And increasing pulmonary volume

Answer 14

Decrease the intra pulmonary pressure to less than atmospheric pressure which force the air from outside to move into the lungs

Question 15

Relaxation of the day from and the intercostal muscles return

Answer 15

Understand I’m to their normal position and reduce the thoracic volume and their by the pulmonary volume this leads to an increase in Interpol Mon refresher to slightly above the atmospheric pressure causing expression of air from lungs

Question 16

Relaxation of the day from and the intercostal muscles return

Answer 16

Understand I’m to their normal position and reduce the thoracic volume and their by the pulmonary volume this leads to an increase in Interpol Mon refresher to slightly above the atmospheric pressure causing expression of air from lungs

Question 17

We have the ability to increase the strength of inspiration and expression with the help of

Answer 17

Additional muscles in the abdomen

Question 18

We have the ability to increase the strength of inspiration and expression with the help of

Answer 18

Additional muscles in the abdomen

Question 19

On an average a healthy human breath

Answer 19

12 to 16 times per minute

Question 20

On an average a healthy human breath

Answer 20

12 to 16 times per minute

Question 21

The volume of air involve in breathing movement can be estimated by using

Answer 21

Spirometer which help in clinical assessment of pulmonary function

Question 22

The volume of air involve in breathing movement can be estimated by using

Answer 22

Spirometer which help in clinical assessment of pulmonary function