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WorksheetsRespiratory System Quiz
Total questions: 69
Worksheet time: 35mins
If a person’s thoracic cavity were to expand not because of muscular contraction but due to some mysterious external vacuum force, which process would most closely resemble the resulting movement of air?
Forced expiration
Voluntary suppression of the medulla
Inspiration due to pressure gradients
Internal respiration malfunction
The nasal cavity, which is lined with a mucous membrane rich in blood vessels, MOST directly performs which oddly specific task when air makes its grand entrance through the nares?
Chemically digesting air particles
Warming, moistening, and filtering
Preventing CO₂ from entering alveoli
Creating vocal resonance
A student identifies the nasopharynx as the region where food, air, and digestive enzymes mix freely. This would be inaccurate primarily because:
Enzymes cannot exist in the nasopharynx
Food does not enter the nasopharynx
Air cannot pass through nasopharynx
The nasopharynx is not real
During a respiratory exam, a patient attempts to swallow and speak simultaneously. The failure of which structure would MOST likely cause immediate aspiration?
Glottis
Epiglottis
Carina
Laryngeal ventricle
If the right bronchus is shorter, wider, and more vertical, then foreign objects are statistically destined to lodge there because:
Air pressure is lowest in that bronchus
Gravity favors the right bronchus
The right bronchus is anatomically straighter
The left bronchus is narrower and longer
Gravity and anatomy increase the entry of particles into the lungs. What is the primary mechanism responsible for this?
Gravity + anatomy increases entry
Cilia pull objects downward
The bronchus creates a vacuum effect
The bronchioles expand uncontrollably
An alveolus with insufficient surfactant would MOST likely:
Increase resonance of the voice
Collapse and reduce gas exchange
Increase bronchiolar pressure
Expand uncontrollably
Which process represents CO₂ traveling from tissues into the bloodstream due to concentration differences?
External respiration
Internal respiration
Cellular respiration
Inspiration
The medulla oblongata increases breathing rate primarily when the blood contains:
Low helium
High carbon dioxide
High nitrogen
Low water concentration
If a patient experiences dyspnea, wheezing, and mucosal edema following cat exposure, the most reasonable diagnosis is:
Influenza
Asthma
Emphysema
Tuberculosis
Chronic bronchitis is distinguished from acute bronchitis mainly because chronic bronchitis:
Is caused by chocolate consumption
Has long-term exposure + damaged cilia
Is caused by bacterial infection
Is associated with high nitrogen levels
COPD is uniquely categorized as an umbrella term because it:
Only includes infections
Contains multiple chronic obstructive diseases
Refers to a single condition
Describes acute airway swelling
In emphysema, CO₂ remains trapped because alveoli:
Increase cilia
Lose elasticity
Become hyper-muscular
Produce excessive surfactant
A nosebleed caused by hypertension is medically termed:
Rhinitis
Epistaxis
Pleurisy
Adenoiditis
Which symptom combination most strongly suggests influenza rather than the common cold?
Sudden fever + muscle aches
Mild runny nose only
Loss of voice resonance
Productive cough with blood
Lung cancer often has a poor prognosis mostly because:
It causes increased surfactant
It presents no early symptoms
It has no treatment options
It increases oxygen diffusion
Sharp, stabbing pain with breathing, plus pleural inflammation, is characteristic of:
Emphysema
Pleurisy
TB
Sinusitis
Pneumonia is best described as alveoli filled with:
Air bubbles
Exudate fluid
Nitrogen pockets
Extra surfactant
Tuberculosis forms walled-off areas known as:
Tubercles
Granules
Bronchioles
Cavitations
Which structure prevents friction during breathing?
Parietal pleura
Pleural fluid
Thyroid cartilage
Carina
Which part of the respiratory tract receives both food and air?
Nasopharynx
Oropharynx
Trachea
Epiglottis
The diaphragm performs inspiration mainly because it:
Raises thoracic pressure
Contracts and flattens
Pulls the trachea upward
Stops medulla signals
Internal respiration directly involves exchange between:
Alveoli and bronchi
Blood and tissues
Nose and sinuses
Voice box and air
In the larynx, sound is produced primarily by:
Air vibrating vocal cords
Epiglottis snapping shut
Cilia movement
Pleural pressure shifts
A patient with prolonged expiration and barrel chest likely has:
Asthma
Emphysema
Sinusitis
URI
Sinusitis causes loss of voice resonance because:
Alveoli shrink
Sinus cavities are blocked
Larynx is paralyzed
Carina is swollen
Rhinitis is primarily inflammation of:
Tracheal cartilage
Nasal mucosa
Bronchial tubes
Pleural lining
The trachea remains open due to:
Flat epithelial lining
C-shaped cartilage rings
Alveolar pressure
Intercostal muscle squeezing
The right lung has fewer lobes than the left because:
It contains more alveoli
The heart occupies left-sided space
Oxygen diffuses better on the left
Pleural membranes differ
Which of the following is not a symptom of TB?
Night sweats
Hemoptysis
Sudden loss of hearing
Fever
A URI is caused by:
Bacteria
Multiple viruses
Fungal spores
Pleural tears
Epiglottis malfunction most immediately threatens:
Voice pitch
Aspiration prevention
Pleural lubrication
Bronchiole dilation
The laryngopharynx is the crossroads because it leads to:
Sinuses and larynx
Esophagus and trachea
Bronchi and alveoli
Nasolacrimal duct
During external respiration, O₂ moves into the bloodstream because:
Blood contains more oxygen
Alveoli contain higher oxygen concentration
Bronchi push oxygen actively
The diaphragm forces O₂ into cells
Influenza vaccines are updated frequently because:
Bacteria evolve rapidly
Viruses mutate and vary each year
Sinuses overwhelm immunity
Pleural fluid changes thickness
Which disease often begins with no symptoms?
TB
Lung cancer
Asthma
Laryngitis
Pleurisy involves crepitation, meaning:
Liquid bubbling
Grating sound from pleura
Collapse of alveoli
Thick mucus expulsion
Emphysema severely limits gas exchange because:
Alveolar walls deteriorate
Cilia increase production
The carina closes
Bronchioles shorten
Which structure warms, moistens, and filters air?
Bronchiole
Nasal cavity
Pleural space
Carina
An asthma attack narrows:
Esophagus
Bronchioles
Vocal cords
Pleural space
Chronic bronchitis results in excessive mucus because of:
Enlarged mucous glands
Reduced blood flow
Overactive diaphragm
Sinus drainage
Surfactant is essential because it prevents:
Excessive coughing
Alveolar collapse
High CO₂ levels
Vocal cord thickening
Pressure changes driving ventilation are created primarily by:
Kidney filtration
Diaphragm + intercostal muscle movement
Sinus dilation
Pleural thickening
The trachea divides at the:
Glottis
Carina
A productive cough with chest pain and fever suggests:
Asthma
Pneumonia
URI only
Simple rhinitis
A patient with cyanosis during respiratory failure most likely has:
Excess oxygen
Insufficient oxygen in blood
Pleural fluid overload
Vocal cord inflammation
Which respiratory event is voluntary only sometimes?
External respiration
Cell respiration
Breathing rate control
Surfactant production
Which system works with the respiratory system for gas transport?
Digestive
Circulatory
Endocrine
Muscular
Bronchodilators are used because they:
Increase pleural fluid
Relax smooth muscle in bronchioles
Harden cartilage rings
Stimulate coughing
What does the larynx house?
Carina
Vocal cords
Terminal bronchioles
Nasolacrimal duct
Why does air move out of the lungs during expiration?
CO₂ becomes too warm
Diaphragm relaxes and pressure increases
Pleura collapses completely
Air becomes heavier
What is the primary function of the pharynx in the respiratory system?
To house the vocal cords
To connect the nasal cavity to the larynx and esophagus
To produce sound
To filter air entering the lungs
Which structure is responsible for connecting the trachea to the lungs?
Bronchi
Alveoli
Pharynx
Diaphragm
What is the role of alveoli in the respiratory system?
To transport air to the lungs
To facilitate gas exchange between air and blood
To produce mucus for trapping dust particles
To regulate the temperature of inhaled air
What is internal respiration?
The exchange of gases between the atmosphere and the lungs
The exchange of gases between blood and body cells
The process of inhaling air into the lungs
The process of exhaling air from the lungs
Which condition is characterized by chronic inflammation of the airways, often triggered by allergens or irritants?
Asthma
Bronchitis
COPD
Pneumonia
What does COPD stand for?
Chronic Obstructive Pulmonary Disease
Chronic Oxygen Pulmonary Disorder
Continuous Obstructive Pulmonary Dysfunction
Chronic Obstructive Pressure Disorder
What is the function of the larynx?
It carries air from the nose and mouth to the lungs.
It lets you speak and keeps food from entering the airway.
It exchanges oxygen and carbon dioxide in the lungs.
It is the tube that carries air from the larynx to the bronchi.
Which structure carries air from the larynx to the bronchi?
Bronchi
Alveoli
Trachea
Larynx
What is the primary role of alveoli in the respiratory system?
To carry air from the larynx to the bronchi.
To exchange oxygen and carbon dioxide in the lungs.
To branch off the trachea and lead into each lung.
To act as the voice box.
What is external respiration?
Gas exchange between the bloodstream and the body’s tissues/cells.
Gas exchange between the lungs (alveoli) and the bloodstream.
The act of breathing in and out.
The process of narrowing airways causing wheezing.
What is asthma?
A condition where the airways temporarily narrow and swell, causing wheezing and trouble breathing.
A condition where oxygen and carbon dioxide exchange is disrupted in the alveoli.
A condition where the trachea is blocked, preventing air from reaching the lungs.
A condition where the larynx fails to keep food from entering the airway.
What is the act of breathing in and out called?
Respiration
Ventilation
External respiration
Internal respiration
Which structure branches off the trachea and leads into each lung?
Bronchi
Alveoli
Larynx
Trachea
What is internal respiration?
Gas exchange between the lungs (alveoli) and the bloodstream.
Gas exchange between the bloodstream and the body’s tissues/cells.
The act of breathing in and out.
The process of narrowing airways causing wheezing.
What is bronchitis?
Inflammation of the bronchi causing coughing and mucus
A type of lung cancer
A bacterial infection of the lungs
A condition that affects the heart
What does COPD stand for?
Chronic Obstructive Pulmonary Disease
Chronic Obstructive Pancreatic Disorder
Chronic Obstructive Pulmonary Dysfunction
Chronic Obstructive Pain Disorder
Which of the following is a characteristic of COPD?
Long-term lung diseases that make it hard to breathe and don’t go away
A temporary condition that affects breathing
A disease that only affects the heart
A bacterial infection that can be cured with antibiotics
Which of the following is an example of a long-term lung disease associated with COPD?
Chronic bronchitis
Asthma
Pneumonia
Tuberculosis
