Respiratory A&P Flashcards
How many loves does the right lung have
3
What is the atmosphere made up before inhaling.
21 O2
0.04 CO2
78 nitrogen
Water vaporise
What is the atmosphere composed of after exhaling?
16 O2
4 CO2
78 nitrogen
requirements of breath.
Open airway. Effective muscles of reps. Non-toxic atmosphere. Good CV. Stable chest wall. Ability lungs to expand. Free passage of gas between alveoli and blood.
What is the function of the nose & nasal cavity?
Warms air, moistens it, smells and filters.
Name the three pharynx.
Nash-pharynx behind the nose.
Oral-pharynx behind the mouth.
Laryngopharynx-larynx extending down cricoid cartilage 12-14 cm long. Anterior to cervical vertebrae.
3 single cartilages.
Epiglottis, thyroid, cricoid.
3 pair cartilages.
Arytenoid, corniculate, cuneiform.
What is known as the voice box?
Larynx
Where is the larynx?
Between the 3rd and 6th cervical vertebrae.
Where does the trachea start.
Starts at the larynx 5th thoracic vertebrae.
Where does bifurcation takes places.
T5
What are the three layers trachea?
Outter layer fibrous, elastic tissue, enclosed cartilage
Middle layer cartilage bands / smooth muscle
Inner made up of ciliates columnar epithelium with goblet cells.
What are bronchi divided into?
Left & right primary bronchias Secondary Tertiary Bronchioles Terminal bronchioles Alveoli
Tidal volume
500mls-breath in & out during quiet breathing.