WorksheetsThe Respiratory System
Total questions: 13
Worksheet time: 9mins
Most foreign substances in inspired air fail to reach the lungs because of the
digestive system
abundant blood supply to the nasal mucosa.
porous structure of the nasal conchae.
action of the epiglottis.
ciliated epithelium & mucus that line the respiratory passages.
Identify the following anatomical structure highlighted in green.
(a)
Which of the following options identifies the correct path that air travels to the blood?
bronchioles — larynx — segmental bronchi — primary bronchi — lobar bronchi
larynx — primary bronchi — trachea — lobar bronchi — bronchioles — segmental bronchi — pharynx
pharynx — larynx — trachea — primary bronchi — bronchioles — alveolar sac — capillaries
larynx — pharynx — lobar bronchi — primary bronchi — bronchioles — segmental bronchi
pharynx — larynx — alveolar sac — capillaries — primary bronchi — capillaries
Identify the following anatomical structure highlighted in green.
(a)
Which of these does not act as a protective mechanism in the respiratory system?
ciliated epithelium lining the respiratory tract
mucous lining the respiratory tract
alveolar macrophages in the lungs.
acidic secretions from the lining of the trachea
The ability to vary the pitch of the voice results from varying
the force of air passing over the vocal folds.
the tension in the vocal folds.
the size of the laryngeal cartilages.
the shape of the cricoid cartilage.
the pharynx
Which of the following is not a function of the nasal conchae?
They deflect particulates to the mucosa.
They help warm the air.
They decrease the turbulence in the flow of air through the nasal cavity.
They moisten the air.
Provide a chamber for resonance of speech
In a runner who is breathing heavily during a race, the rima glottidis is
all the way closed.
half open.
not applicable
open as far as possible.
half closed.
Identify A
(a)
Lung cancer occurs slightly more frequently in the right lung than in the left lung (about 53% versus 47% of the time). The most logical explanation for this is that
The right nostril is closed more often than the left one, so it blocks the exhalation of cigarette smoke and causes smoke to back up into the right lung.
The right primary bronchus is wider than the left one (and the right lung is larger than the left lung), so the right lung receives slightly more carcinogenic cigarette smoke with each puff.
Most people are right-handed, so everything affects the right side of the body more intensely.
There are special proteins within the right lung that unfortunately attract chemicals and toxins.
The tissue of the right lung is more susceptible to carcinogens.
In emphysema, the alveoli become enlarged due to deterioration of the alveolar walls. How does this lead to a lack of oxygen?
The surface area to volume ratio significantly reduces resulting in a decrease in total gas exchange.
The alveoli walls become impermeable to oxygen as they enlarge.
They can become so enlarged that they begin to block bronchial tubes.
The enlarged alveoli place increased mechanical pressure on the capillaries in the lung, causing them to break down.
The alveolar walls thicken, making exchange more difficult.
Identify ADE (a)
Identify DE (a)
