Concept of Oxygenation: Respiratory Disorder Flashcards
Oxygen is supplied to, and carbon dioxide is removed from cells by way of the circulating blood
Oxygenation
Movement of air in and out of the airways, the exchange of air between the lungs and the atmosphere
Ventilation
Exchange of gas molecules from areas of high concentration to areas of low concentration
Diffusion
The flow of blood from the heart through arteries and capillaries, delivering nutrients and oxygen to cells
Perfusion
A passageway for air to pass to and from the lungs, filters impurities and humidifies and warms the inhaled air, responsible for olfaction
Nose
A narrow vertical divider separating the right and left nasal cavities
Septum
Divides the nasal cavity into three passageways
Conchae
The external openings of the nasal cavity
Anterior nares (nostrils)
Is a highly vascular ciliated mucous membrane that lined the nasal cavity
Nasal mucosa
Aid to move back the mucus secreted by the goblet cells
Cilia
Cover the surface of the nasal mucosa
Goblet cells
Secrete mucin and create a protective mucus layer
Goblet cells
What stimulates the secretion of goblet cells?
Irritants in the airway such as dust and smoke
Spaces that are connected by a series of ducts that drain into the nasal cavity
Paranasal sinuses
What are the four paranasal sinuses
Frontal, Ethmoidal, Maxillary, Sphenoidal
Four pairs of bony cavities that are lined with nasal mucosa and ciliated pseudostratified columnar epithelium
Paranasal sinuses
Serve as a resonating chamber in speech and are a COMMON SITE FOR INFECTION
Paranasal sinuses
A passageway for the respiratory and digestive tracts
Pharynx
A tube-like structure that connects the nasal and oral cavities to the larynx
Pharynx
Three regions of the pharynx
Nasopharynx, Oropharynx, Laryngopharynx
Located posterior to the nose and above the soft palate
Nasopharynx
Houses the faucial/ palatine tonsils
Oropharynx