Exam5 Flashcards
Structure of lower respiratory tract ..
Trachea , bronchi tree, lungs
Structure of upper respiratory Tract..
Nose, pharynx, larynx
Role of surfactant..
Substance that helps reduce surface tension in the alveoli and keeps them from collapsing as air moves in and out during respiration
Role respiratory mucosa ?
The mucus serves as an air purification mechanism by trapping inspired irritants (dust and pollen)..
Location of respiratory mucosa?
Lines the air distribution tubes in the respiratory tree.
Location of “Adams apple”
Thyroid cartilage ( in larynx) just below the pharynx
What happens to the thorax during inspiration ?
Thorax enlarges in size
What happens to the thorax during expiration ?
Thorax returns to its smaller size (resting size & shape)
Tidal volume (TV)?
Amount normally breathed in or out with each breath.
Respiratory center in the brain is what?
Medulla
Accessory organs of the GI system?
Teeth and tongue, salivary glands, parotid, submandibular, sublingual, liver, gallbladder, pancreas, vermiform appendix.
Layers of the digested tract?
Mucosa, submucosa, muscularis, serosa.
Largest salivary gland is what?
Parotid gland
Sequence of small intestines ?
Duodenum, jejunum, and ileum
Function of bile?
Serves to emulsify fats