T2 U6 Functional Anatomy of Respiratory Flashcards
The 7 aspects of the respiratory system are
nose pharynx larynx trachea bronchii lungs Alveoli
Where does gas exchange take place
in alveoli
The interior of the nose is divided by the _____
nasal septum
The nose is separated from the oral cavity by_____
Palate
What lines the nasal cacity, and what is its function
Mucosa. Its cilia create gentle current and moves contaminated muscous to pharynx
____Increases mucosa surface area
Chordae
Paranasal sinuses located in
Frontal, sphenoidal, ethnoidal and maxillary bones
_____duct drains tears
Nasolacrimal
Name the 3 regions of the pharynx
Nasopharynx
Oropharynx
Laryngopharynx
Name the 3 types of tonsil
Pharyngeal tonsil
Palatine tonsil
Lingual tonsil
How is the larynx formed?
by 8 rigid hyaline cartilages and a flap of elastic cartilage
Thyroid cartilage protrude anteriorly
Adams apple
Function of epiglottis
Protect superior opening of larynx not restrict passage of air to lower respiratory passage ways
When swallowing, larynx ____
Pulled upward to prevent choking
Trachea has _____ muscle that is lined with____
Smooth. Ciliated mucosa
What are the 2 purposes of trachea
Open parts of rings allow esophagus expansion anteriorly when swallowing
Trachea walls kept solid because of high psi changes during breathing
When air reaches bronchii it should be
Cleansed of impurities
Lungs apex is deep to
Clavicle
Each lung is divided into lobes by fissures called
L lung has 2 lobes
R lung has 3 lobes
Surface of each lung covered by
Visceral serosa called visceral pleura
Walls of thoracic cavity lined by
Parietal pleura
What produces pleural fluid
Pleural membrane
Function of pleural fluid
Slippery serous secretion that allows lungs to glide over thoracic wall during breathing
Why are the lungs held tightly to thoracic wall and pleural space
Creates More potential space
The ____ wall is composed of a single layer of squamous epithelial cells
Alveoli wall
What connects neighboring air sacs and provides alt. routes for ir to reach alveoli
Alveolar pores
What is the air - blood barrier
Alveolar, capillary wall, and fused basement membranes that construct respiratory membrane
How does gas exchange happen by diffusion
O2 passing from alveolar air to capillary bed and co2 leaving blood to enter gas-filled alveoli
Function of alveolar macrophages
Pick up bacteria and debris
What forms alveolar wall
Cuboidal cells scattered across epithelial cells
