Nasal Cavity a. pharynx b. trachea Larynx c. Right Lung Left Lung d. pleura d. pleura diaphragm

Right primary bronchus Thyroid cartilage Cricoid cartilage trachea Right primary bronchus Left primary bronchus Right lung Left lung

Nasal bone Frontal process Septal cartilage Lateral nasal cartilage Lesser alar cartilages Greater alar cartilages External Nares

Crista Galli of Ethmoid Perpendicular Plate of Ethmoid Nasal bone Cribriform Plate Vomer Septal cartilage Greater alar cartilages Hard Palate Soft Palate Chonae (Internal Nares)

Sinuses Superior Nasal Concha Middle Nasal Concha Septal Cartilage Inferior Nasal Concha Hard Palate External Nares Thyroid Cartilage Vocal Fold Cricoid Cartilage Trachea

Glottis Epiglottis Hyoid Bone Thyroid Cartilage Corniculate Cartilages Vestibular Fold Vocal Fold Arytenoid cartilage Conus elasticus Cricothyroid ligament Cricoid cartilage Trachea

1. (B)Bronchioles – Smallest respiratory passageway 2 1. (B)Bronchioles – Smallest respiratory passageway 2. (G)Palate – Separates the oral and nasal cavities 3. (I)Phrenic Nerve – Major nerve stimulating the diaphragm 4. (E)Esophogus – Food passageway posterior to the trachea 5. (D)Epiglottis – Closes off the larynx during swallowing 6.(K)Trachea - windpipe 7.(A)Alveoli – actual site of gas exchange 8.(H)Parietal Pleura – Pleural layer covering the thorax walls 9.(L) Vagus Nerve – Autonomic Nervous System nerve serving the thorax 10. (F) Glottis – Opening between vocal folds 11. (C) Conchae – Fleshy lobes in the nasal cavity that increase its surface area 12. (O) Vocal Folds – Closes the glottis during the Valsava maneuver 13. (N) Uvula – Closes the nasopharynx during swallowing 14. (K) Trachea – The cilia of its mucosa beat upward toward the larynx