Mechanism of breathingश्वसन की क्रियाविधि

NCERT Fig 14.2 · interactive diagram

Parts and their functions

• Inspiration (अंतःश्वसन) — Diaphragm and external intercostals contract; thoracic volume up; pressure falls; air in.
• Expiration (उच्छ्वसन) — Muscles relax; volume down; intra-pulmonary pressure slightly above atmospheric; air out.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 14.2. Report a mistake