1What are the 4 processes of the respiratory system?
1. Pulmonary ventilation - moving air in an out of the lungs & alveoli’s
2. external respiration - gas exchange between blood & alveoli
3. transport of respiratory gases - between lungs and body circulatory system
4. internal respiration - gas exchange between blood and tissues
2What are the two anatomical division of the respiratory system?
upper respiratory - nose, pharynx
lower respiratory - larynx trachea bronchi lungs
3what are the 2 functional division of the resp system?
Conducting
Resppiratory zone
4What is the conduction zone of the resp system?
Support structure & tubes conducting air external to lungs (nose > terminal bronchioles)
5What is the respiratory zone?
Where gas exchange takes place (respiratory bronchioles > alveoli’s)
6Where is the olfactory mucousa found? What its function?
Respiratory region of nasal cavity and for smell
7What are the cavities around the nasal cavity in the skull?
What are there functions?
Frontal Sinus, Ethmoid Sinus, Sphenoidal Sinus, Maxilary Sinus
Lightens skull, mucus production, resonant chamber for sound
8What is the function of the pharynx? What are the 3 sections?
Transport air and food
Nasopharynx, Oropharyn, Laryngopharynx
9What is the function of the larynx and what anatomical structure is involved?
Directs air and food to appropriate place via epiglottis
Seperation of resp system and digestive
10What are some fact about the trachea?
Air only
4in long 2.5cm did
Divides @ corina to R & L pulmonary bronchi
11What are the 3 sections of Bronchi in order?
Primary, Secondary (lobar), Tertiary
12How many secondary Bronchi are there in each lung?
3 = R 2 = L
13What are the 2 sections of bronchioles?
Terminal bronchioles, respiratory bronchioles
14What changes once we get to the terminal bronchioles?
Cartilage rings disappear
Turns too smooth muscle bands
parasympathetic & histamines = constriction (ie Asthma)
Sympathetic (ie epinephrine) = Dilation
15Where do the respiratory bronchioles lead to?
Aleveolar duct