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Respiratory System

Across
The secondary external opening for the respiratory tract
The main muscle of the respiratory system and breathing
A short section of the airway that connects the laryngopharynx and the trachea
Assist the diaphragm with expanding and compressing the lungs
A flap of elastic cartilage that acts as a switch between the trachea and the esophagus
The main external opening for the respiratory system
Down
A 5-inch long tube made of C-shaped hyaline cartilage rings lined with pseudostratified ciliated columnar epithelium
A long, thin, and muscular tube that connects the pharynx to the stomach
A muscular funnel that extends from the posterior end of the nasal cavity to the superior end of the esophagus and larynx
Carry air from the trachea into the lungs
The airway splits into left and right branches known as the primary bronchi
A pair of large, spongy organs found in the thorax lateral to the heart and superior to the diaphragm