Respiratory System Flashcards
What makes up the upper respiratory system?
Nose, nasal cavity, paranasal sinuses, pharynx
What makes up the lower respiratory system?
Larynx, trachea, bronchus, bronchioles, smallest bronchioles, alveoli
Respiratory portion of the tract consist of
smallest bronchioles, alveoli
Conducting portion of the tract consist of
Nose, nasal cavity, paranasal sinuses, pharynx, larynx, trachea, bronchus, bronchioles
What is the function of the upper respiratory system
The upper respiratory system filters, warms and humidifies incoming air (all of which protects the delicate surfaces of the lower respiratory system) and resorbs heat and water from outgoing air.
What is the function of the lower respiratory system?
The lower respiratory system conducts air to and from gas exchange surfaces
Constant movement of ____ sweeps mucus and debris toward the pharynx where they will be either coughed out or swallowed
cilia
What 2 things clean and protect respiratory surfaces
Ciliary movement and mucus
What is lamina propria?
Loose connective tissue providing support to the overlying epithelium; contains mucus glands
What is another name for a mucous cell
Goblet cell
The respiratory mucosa is an epithelium that lines the conducting portion of the respiratory tract. It is a ______________________________
ciliated pseudostratified columnar epithelium
What do goblet cells produce?
Goblet cells produce a sticky mucus that bathes and protects exposed surfaces
What type of epithelium lines the pharynx
The pharynx is lined with a stratified squamous epithelium to protect it against abrasion
What type of epithelium is found in narrower respiratory passages?
Cuboidal epithelium
The histological structure of the respiratory epithelium changes dramatically along the entire length of the respiratory tract.
The histological structure of the respiratory epithelium changes dramatically along the entire length of the respiratory tract.