Keywords
anatomy,respiratory system,respiration,trachea,larynx,mouth,nasal passage,breathing,esophagus,nasal cavity,pharynx,nasal conchae,nasal vestibule,frontal sinus,sphenoid sinus,paranasal sinus,oral cavity,tongue,epiglottis,thyroid cartilage,cricoid cartilage,palette,mandible,jaw,neck,lateral head,female head,adult male human body,body,person,people,figure,head,face,male,man,boy,lateral,side view,eyes closed,hairless,bald,tilted,tild,chin up,cotton swab,sterile swab,disposable swab,URT,upper respiratory system,upper airway,respiratory tract,male head,male face,collection,nasopharyngeal,sample swab,covid,covid-19,coronavirus,test,testing,swab