An air-filled cavity within the bones of the skull that are connected to the nasal cavity.

Refers to a cavity or space in biological structures, often in relation to respiration.

गुहा

English Usage: The sinus pneumaticum helps in the process of respiration by enlarging the area for air exchange.

Hindi Usage: गुहा वायुपरिवर्तन के लिए क्षेत्र को बढ़ाकर श्वसन की प्रक्रिया में मदद करती है।