WorksheetsThe Respiratory System — Multiple Choice Quiz
Total questions: 49
Worksheet time: 25mins
The respiratory system allows oxygen to enter the blood. The oxygen is necessary for cellular production of ______.
ATP
carbon dioxide
glucose
protein
Pulmonary ventilation is also known as:
breathing
cellular respiration
external respiration
internal respiration
Exchange of gases between the air and blood is _____ and the exchange of gases between blood and tissue fluid is _____.
external respiration; internal respiration
external respiration; ventilation
internal respiration; external respiration
ventilation; internal respiration
Identify the function of the mucous membrane lining respiratory airways.
clean, warm and moisten air.
exchange gases and warm and moisten air.
exchange gases and clean and warm air.
exchange gases and moisten and warm air.
Identify the structures that aid in the cleansing of the air.
blood vessels, cilia and mucous
blood vessels, cilia and coarse nasal hairs
blood vessels, coarse nasal hairs and mucus
cilia, coarse nasal hairs and mucous
The function of the nasal conchae is to increase surface area:
for gas exchange.
for smell.
for cleansing, moisturizing, and warming the air.
bring in more air.
Identify structures of the upper respiratory tract.
Alveoli, nasal cavity, pharynx and trachea.
Bronchus, nasal cavity, pharynx and larynx.
Nasal cavity, pharynx, glottis and larynx.
Trachea, nasal cavity pharynx and larynx.
Identify the sections of the pharynx in order as air is inhaled.
Laryngopharynx, nasopharynx and oropharynx
Nasopharynx, laryngopharynx and oropharynx
Nasopharynx, oropharynx and laryngopharynx
Oropharynx, nasopharynx and laryngopharynx
Identify the region(s) of the pharynx that serves as a passageway for air only.
Laryngopharynx
Nasopharynx
Oropharynx
Laryngopharynx and nasopharynx
Identify the structure that keeps food and drink from entering the lower respiratory tract.
nasal conchae
tonsils
tongue
epiglottis
The "Adam's Apple" is also known as the:
epiglottis of the larynx
Laryngopharynx of pharynx
thyroid cartilage of the larynx
trachea
The voice box is also called the ____.
bronchus
larynx
pharynx
trachea
The tonsils are part of the:
endocrine system.
digestive system.
lymphatic system.
respiratory system.
The windpipe is also known as the ____.
bronchus
epiglottis
pharynx
trachea
The C-shaped cartilaginous rings around the trachea are open posteriorly to:
allow for expansion of the esophagus during swallowing
allow the vocal cords to relax
prevent food from entering the nasal cavity during swallowing
prevent food from entering the trachea
When the tension on the vocal cords increase, the glottis becomes ____ and the pitch of the voice becomes ____.
more narrow; higher
more narrow; lower
wider; higher
wider; lower
What structures allow the trachea and bronchi to stay open all the time?
cilia
C-shaped cartilage rings
glottis
mucous membranes
The trachea is lined with
ciliated simple squamous epithelium.
stratified squamous epithelium.
pseudostratified ciliated columnar epithelium.
pseudostratified squamous epithelium.
The right lung has ____ secondary bronchi and the left lung has ____ secondary bronchi.
2; 2
2; 3
3; 2
3; 3
The serous membrane adhering to the surface of the lungs is the ____ and the serous membrane that lines the thoracic cavity is the ____.
diaphragm; parietal pleura
parietal pleura; diaphragm
parietal pleura; visceral pleura
visceral pleura; parietal pleura
The trachea divides into the right and left ____ that enter into the right and left lungs.
alveoli
bronchioles
primary bronchi
secondary bronchi
During gas exchange within the lungs, oxygen diffuses from the ____ into the blood of the ____.
alveoli; pulmonary capillaries
alveoli; bronchiole capillaries
lobule; pulmonary capillaries
lobule; bronchiole capillaires
List the correct sequence of organs through which air passes into the body.
nose, larynx, pharynx, trachea, bronchi, lungs
nose, pharynx, larynx, bronchi, trachea, lungs
nose, pharynx, larynx, trachea, bronchi, lungs
nose, trachea, pharynx, larynx, bronchi, lungs
What substance is necessary to keep alveoli from collapsing because of the surface tension of the water?
surfactant
mucus
blood
air
Infant respiratory distress syndrome results from a(n)
lack of surfactant.
autoimmune disorder.
congenital lung defect.
inactive respiratory center.
The respiratory membrane consists of the:
alveolar walls.
capillary walls.
alveolar and capillary walls.
Identify muscles of inspiration.
Abdominal muscles and external intercostal.
Diaphragm and external intercostal muscles.
Diaphragm and internal intercostal muscles.
Internal and external intercostal muscles
During rest, inspiration is considered a(n) _____ phase of ventilation and expiration is considered a(n) _____ phased of ventilation.
active; active
active; passive
passive; passive
passive; active
During inspiration, the diaphragm contracts, causing the volume of the thoracic cavity to _____ and the intrapulmonary pressure to _____.
decrease; decrease
decrease; increase
increase; decrease
increase; increase
During inspiration, air flows into the lungs because atmospheric pressure is:
greater than intrapulmonary pressure
less than intrapulmonary pressure
equal to intrapulmonary pressure
greater than intrapleural pressure
Airflow into the lungs will stop when the pressure in the air (atmospheric pressure) is:
greater than intrapulmonary pressure
less than intrapulmonary pressure
equal to intrapulmonary pressure
greater than intrapleural pressure
During expiration, the diaphragm relaxes, causing the volume of the thoracic cavity to _____ and the intrapulmonary pressure to _____.
decrease; decrease
decrease; increase
increase; decrease
increase; increase
During expiration, air flows out of the lungs because atmospheric pressure is:
greater than intrapulmonary pressure
less than intrapulmonary pressure
equal to intrapulmonary pressure
greater than intrapleural pressure
In order t sing or blow out birthday candles, contraction of the ____ muscles are needed.
external intercostal
internal intercostal
pectoralis major
sternocleidomastoid
The vital capacity equals the
tidal volume plus inspiratory reserve volume plus expiratory reserve volume
tidal volume plus residual volume
inspiratory reserve volume plus residual volume
tidal volume plus expiratory reserve volume plus residual volume
Normal, quiet respiration moves about 500 mLs of air. What is this volume called?
vital capacity
expiratory reserve volume
residual volume
tidal volume
A big, deep inspiration before going under water is the
vital capacity.
residual volume.
inspiratory reserve volume.
tidal volume.
The primary respiratory center is located in the
brachiocephalic trunk.
hypothalamus.
medulla oblongata.
cerebrum.
To breathe rhythmically at a normal rate and volume requires input from the
cerebrum.
cerebellum.
thalamus.
pons.
The normal quiet pattern of breathing of a smooth, sustained inspiration followed by a smooth, sustained expiration is called:
apnea
eupnea
hyperpnea
hypoventilation
The respiratory center is directly sensitive to:
elevated carbon dioxide
elevated carbon dioxide and hydrogen ions
elevated hydrogen ion
low oxygen levels
The exchange of respiratory gases in the lungs is called
pulmonary ventilation.
external respiration.
internal respiration.
expiration.
The driving factor(s) for gas exchange is (are)
different partial pressures of the blood gases.
the number of white blood cells in the blood.
different concentrations of the blood gases.
Both A and C
External respiration occurs between the alveoli and the pulmonary capillaries because the concentration of oxygen levels is higher in the _____ and the concentration of carbon dioxide is higher in the _____.
alveoli; pulmonary capillaries
pulmonary capillaries; alveoli
systemic capillaries; tissue fluid
tissue fluid; systemic capillaries
The exchange of gases between the blood and tissue fluids is called
pulmonary ventilation.
external respiration.
internal respiration.
expiration.
Internal respiration occurs between the systemic capillaries and the tissue fluid because the concentration of oxygen levels is higher in the _____ and the concentration of carbon dioxide is higher in the _____.
alveoli; pulmonary capillaries
pulmonary capillaries; alveoli
systemic capillaries; tissue fluid
tissue fluid; systemic capillaries
Most of the carbon dioxide in the blood is transported as
carbon dioxide dissolved in the plasma.
bicarbonate ions.
Carbonic acid can be formed from
water and carbon dioxide.
hydrogen ions and bicarbonate ions.
carbon dioxide and bicarbonate ions.
A and B, but not C.
Most of the oxygen in the blood is transported
dissolved oxygen in the plasma.
attached to the heme group of the hemoglobin in the red blood cells.
attached to the globin part of the hemoglobin in the red blood cells.
as bicarbonate ions in the red blood cells.
