Which of the following statement sequences is correct to initiate exhalation? (i) Relaxation of external intercostal muscles and return of diaphragm and sternum to their normal position (ii) Air expelled from lungs (iii) Volume of thorax decreases (iv) Intrapulmonary pressure increases. wrong anwser will be reported strictly
Answers
Answered by
0
Answer:
may be 2nd and 4th is the answerik
Answered by
3
Answer:
A dome-shaped muscle separating the abdominal wall from the thoracic cavity, with vertically running fibres at the periphery and horizontally running fibres at the centre ending in the central tendon. It is innervated by phrenic nerves (C3, C4 and C5). The muscle is attached behind to fixed structures like vertebrae and in front to sternum and to mobile structures like the lower ribs at the sides.
Similar questions