What is the primary function of the respiratory system?
Respiratory system

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To digest food
To circulate blood
To bring oxygen into the body and remove carbon dioxide
To produce hormones
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which structure is NOT part of the upper respiratory tract?
Pharynx
Oral cavity
Trachea
Nasal cavity
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main role of the alveoli in the respiratory system?
To support the trachea
To filter air
To facilitate gas exchange
To produce mucus
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which muscle is primarily responsible for expanding the thoracic cavity during inhalation?
Biceps
Diaphragm
Quadriceps
Trapezius
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the diaphragm during respiration?
To expand the thoracic cavity and draw air in
To produce sound
To compress the thoracic cavity
To separate the nasal and oral cavities
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the nasal conchae?
To produce sound
To increase surface area for air filtration
To support the trachea
To aid in digestion
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of obstructive respiratory diseases?
Increased lung expansion
Improved airflow
Narrowing or blocking of airways
Increased lung elasticity
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