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WorksheetsRespiratory System
Total questions: 20
Worksheet time: 20mins
What is the main function of the respiratory system?
digest and break down food
send and receive messages
bring CO2 into the body and release O2
Bring in O2 and release CO2
What part of the respiratory system is labeled number 3?
Nose
Larynx
Pharynx
Alveoli
How does the respiratory system deliver O2 to different parts of the body?
Inspiration
it enters your blood through the capillaries
you breathe in CO2
your trachea moves it into your lungs
Which of the following statements could be applied to “external respiration”?
exchange of gases between alveolar air and the blood in pulmonary capillaries.
exchange of dissolved gases between blood in tissue capillaries and the body tissues.
the production of CO2 from organic molecules in the cells by using O2 .
the inhalation of atmospheric air into the lungs followed by exhalation.
What term is applied to the volume of air that moves into the lungs while breathing at rest?
Anatomical dead space
Inspiratory reserve capacity
Residual volume
Tidal volume
What term is applied to the exchange of dissolved gases between capillary blood and body tissues?
Internal respiration
External respiration
Ventilation
Cellular respiration
Which structures comprise the lower respiratory tract?
pharynx, larynx, trachea
larynx, trachea, bronchi
nose, pharynx, larynx
trachea, bronchi, lungs
Which of the following lists the components of the respiratory membrane?
alveolar epithelial cells, capillary endothelial cells and their basement membranes
fluid and surfactant alveolar epithelial cells, capillary endothelial cells and their basement membranes
visceral pleura, parietal pleura and serous fluid.
ciliated epithelial cells, mucus cells and secreted mucus
To which of the following does the term “respiration” NOT apply?
The conversion of carbon dioxide to bicarbonate ions for transport to the lungs
The exchange of gases between alveolar air and capillary blood
The derivation of energy from organic molecules in the cells
The exchange of gases between capillary blood and body tissues
Which of these structures has no cartilage in it?
Epiglottis
Trachea
Bronchi
Alveoli
Gas exchange takes place in the:
larynx
bronchioles
alveoli
pleura
The walls of the trachea are held open by which of the following?
nerve impulses
rings of cartilage
fine bones
smooth muscle contractions
The greatest amount of air that can be moved in and out of the respiratory system is the:
tidal volume
vital capacity
ventilatory volume
pulmonary capacity
What are the main muscles involved in normal inspiration?
muscles of the neck
abdominal muscles
intercostal muscles
intercostals and the diaphragm
What are the membranes that surround each lung called?
parietal and visceral membranes.
parietal and visceral meninges
pleura
peritoneum
What is the function of the cilia on the cells that line the bronchial tree?
They help mix the inhaled fresh air with the residual air contained in the bronchial tree.
They slow the movement of air to allow for efficient exchange of gases.
They move the mucus on the cell surface up out of the bronchial tree.
They filter particles from inhaled air.
One of the following statements is correct. Which one?
The visceral pleura is attached to the chest wall and the parietal pleura is attached to the lung.
The two lungs and their associated structures are known as the
pneumothorax.
The hilum is a serous membrane that surrounds each lung separately.
A negative pressure is maintained between the two lung pleura.
What term is applied to the exchange of dissolved gases between capillary blood and body tissues?
Internal respiration
External respiration
Ventilation
Cellular respiration
What is the function of the ciliated cells of the respiratory epithelium?
to trap inhaled particles not removed by the nasal cavity
to secrete a mucus layer onto the epithelium
to move mucus and trapped particles up the bronchial tree
to secrete surfactant that decreases water surface tension
One statement below about the larynx is correct. Which one?
Structure that separates food and air passageway
It has walls made of cartilage
It has walls made of bone
It has walls made of muscle
