these are the openings connecting the nasal cavity to the outside. air passes through these openings during respiration
this is the cavity within the nose and above the plalate. it is divided by the nasal sept into two passageways,. the cabvity contains the olfactory epithelium and warms, moistens, and filters the air passing through the nose.
these are the cavities located within the skull which lighten the skull and serve as resonating chambers for speech
these are the openings at the rear of the nasal cavity which open into the nasopharynx. air passes through these openings into the nasopharynx.
this passageway is known as the throat. it is composed of three regions
this is the portion of the pharynx superior to the soft palate. the openings of the eustachain or auditory tubes are located in this region.
this is the portion of the pharynx between the soft palate and the epiglotties.. it si the common passageway for the digestive and respiratory system
this portion of the pharynx lies bewteen the hyoid bone and the larynx
this structure is also called the voice box. it connects the pharynx to the trachea. the epiglotties is a flap of tissue that covers the opeing to the larynx called the glotties during the swallowing. this epiglottis preveents food and fluid from entering the lower portion of the respiratory system. the larynx also contains the pairted vocal chords used for speech.
this is a cartilage reenforced tube that is commonly called the windpipe. it begins at the larynx and ends as it splits into the right and left bronchi, in the thorax. it is the passageway for air
two large respiratory organs located in the thoratic cavity
commly called the root of the lung. they are located where the bronchi and blood vessels enter or leave the lung. otherwise the lungs float freely in the thoracic cavity
these are the two tubes which split from the base of the trachea and enter the right and left lungs
the primary bronchi split into these smaller tubes within the lungs
the secondary bronchi split into these smaller tubes within the lungs
the teriary bronchi split into these smaller tubes within the lungs. the bronchioles eventually lead to the alveoli
these are small sacs lined with simple squamous epitheluim. they form the functional lunit of the lungs wher gas exchange occurs
this is a large flat skeletal muscle which separtes the thoracic and abdominal cavitie. it acts to change air pressure within the lungs during inhalation and exhalation