WorksheetsTest 4 KIN 1AA3
Total questions: 25
Worksheet time: 14mins
Where can cartilage plates be found in the tracheobronchial tree?
Terminal bronchioles
Lobar bronchi
Main bronchi
Segmental bronchi
What changes can be seen in the size and number of air passageways/branches as you move down the tracheobronchial tree?
Size decreases, number increases
Size increases, number decreases
Size increases, number increases
Size decreases, number decreases
Where does the respiratory/gas exchange zone begin?
Terminal bronchioles
Alveolar ducts
Alveolar sacs
Respiratory bronchioles
Which of the following is false about type 2 pneumocytes?
They make up the alveolar epithelium
They are simple squamous epithelial cells
They secrete alveolar fluid containing surfactant
They line the lumen of the alveolus
What is the name of the region on the medial surface of the lungs that involves the entrance of the bronchi and blood vessels?
(a)
Which of the following volumes describes the difference in volume between maximum inspiration and tidal volume?
Inspiratory reserve volume
Vital volume
Tidal volume
Inspiratory capacity
What is the calculation for vital capacity?
Sum of all the volumes
Inspiratory reserve volume + expiratory reserve volume
Tidal volume + inspiratory reserve volume
Total lung capacity - residual volume
Which of the following regions would be considered part of the anatomic dead space?
Alveolar sacs
Terminal bronchioles
Respiratory bronchioles
Alveolar ducts
which of these is not a part of the respiratory membrane?
pulmonary capillary epithelium
interstitial space
alveolar fluid
red blood cells
the (a) volume is the amount of air inspired or expired with each breath.
What is the pressure difference between the atmosphere and alveoli during expiration?
Palv = PB
PB > Palv
Palv > PB
What is the pressure difference between the atmosphere and alveoli during inspiration?
Palv = PB
PB > Palv
Palv > PB
Which of these muscles are used in inhalation?
Abdominals
Sternocleidmastoid
Pectoralis minor
Transverse thoracis
What is true about quiet inspiration?
Only the diaphragm contracts
Intrathoracic pressure falls and 500ml inhaled
70% of air from diaphragm and 30% from external intercostals
External intercostals increase the only anteroposterior chest cavity size
Which muscle does not put in work during forced inspiration?
External intercostals
Scalenes
Pectoralis minor
Sternocleidomastoid
Internal intercostals
What is the percentage of CO2 in the atmosphere anywhere?
20.93
0.04
78.6
0.3
Select the false statement:
It is very hard to get the first oxygen off of a fully saturated hemeglobin
0.5% of oxygen is dissolved in the blood
Alveolar air experiences a PO2 decrease because of water changing pressure of the air from the trachea and oxygen leaving the "doorway"
The oxygen-hemoglobin dissociation curve is S shaped
What is not associated with the oxygen-hemoglobin dissociation curve shifting left?
pH increases
easier to drop off oxygen
CO2 decreases
temperature dec
What factors causes more O2 to be released?
Temperature increase
Hypothermia
Decrease in pH (increase in acidity)
BPG release
What is the PO2 of inspired air?
104 mmHg
160 mmHg
95 mmHg
40 mmHg
as acidity increases, O2 affinity for hemoglobin also increases.
TRUE
FALSE
in partial pressure changes in the body for O2, why is there a decrease at the pulmonary veins?
mixing of deoxygenated blood form bronchial veins
addition of H2O and loss of O2 to blood
there is no decrease
addition of CO2 and loss of O2 to blood
which of these helps create a "suction effect" during breathing?
the pulmonary capillaries
the alveoli
the bronchioles
pleural fluid
during expiration, alveolar pressure is higher than external pressure.
TRUE
FALSE
which of these is not a part of the respiratory membrane?
pulmonary capillary epithelium
interstitial space
alveolar fluid
red blood cells
