QUESTION 5 Judging by their names which of the following is

QUESTION 5

Judging by their names, which of the following is NOT an upper respiratory infection?

bronchitis

sinusitis

laryngitis

pharyngitis

2 points   

QUESTION 6

Which type of bronchiole has the smallest diameter?

lobule bronchiole

terminal bronchiole

respiratory bronchiole

tertiary bronchiole

2 points   

QUESTION 7

The red line graph below shows the tidal volumes of a healthy 25-year-old female.   A tidal volume is simply the amount of air that is brought in and out of the lungs during a normal breath.

One can assume from this graph that every time the female\'s lung capacity reaches 2700 mL, that the following statement is TRUE:

the female is inhaling

the female is exhaling

the female\'s diaphragm is moving upwards

the intercostal muscles are relaxed

2 points   

QUESTION 8

After a normal exhalation, some air is left in the \"anatomic dead spaces\" of the lungs and airways. This air cannot be used to oxygenate capillary blood, because it never comes in contact with the capillary network.

Which of the following respiratory structures CANNOT be an \"anatomic dead space\"?

bronchus

bronchiole

trachea

alveolus

2 points   

QUESTION 9

Which of the following blood vessels would contain the highest amount of carbon dioxide?

pulmonary venule

pulmonary artery

pulmonary vein

oxygenated side of capillary network

2 points   

QUESTION 10

If you were born without an epiglottis, you would continually:

swallow

inhale without exhaling

choke on food

hiccup

		bronchitis
		sinusitis
		laryngitis
		pharyngitis

4000 3000 2000 1000 10 Functional residual capacity 15 20 Time (seconds) 25 30 Tidal volume

Solution

Answer:

5). bronchitis

Bronchitis is lower respiratory tract infection.

6). Respiratory branchiole

A pulmonary lobule is the portion of the lung ventilated by one bronchiole. Bronchioles are approximately 1mm or less in diameter and their walls consist of ciliated cuboidal epithelium and a layer of smooth muscle. Bronchioles divide into even smaller bronchioles, called terminal, which are 0.5mm or less in diameter. Terminal bronchioles in turn divide into smaller respiratory bronchioles which divide into alveolar ducts. Terminal bronchioles mark the end of the conducting division of air flow in the respiratory system while respiratory bronchioles are the beginning of the respiratory division where actual gas exchange takes place.

9). pulmonary artery

Pulmonary artery carries deoxygenated (high CO2, low oxygen) blood from heart to lungs