29 Questions
What is the primary function of the respiratory system in terms of cellular respiration?
To provide O2 to cells for ATP hydrolysis
What is the direction of CO2 transport in the respiratory system?
From the tissues to the lungs and then expired
What is the role of the physical barrier in the respiratory system?
To separate the internal and external environments
What is the function of the Upper Respiratory Tract?
To filter incoming air and transport it to the alveoli
What drives the rate of respiration?
Oxygen debt
What is the principal role of the respiratory system in terms of gas transport?
To transport O2 from the lungs to the tissues
What is the primary function of the epiglottis during swallowing?
To close off the glottis from the trachea
What is the main difference between the true and false vocal cords?
The true vocal cords are involved in speech production, while the false vocal cords are not
During normal breathing, what happens to the glottis?
It becomes wider and more triangular
What controls the pitch of the voice during speech production?
The tension of the true vocal cords
What is the primary function of the epiglottis in relation to swallowing?
Elevation and forward movement of the larynx and pharynx
What is the purpose of the mucous membrane covering the vocal cords?
To facilitate the production of speech sounds
Which part of the pharynx is involved in the passage of air and food?
Oropharynx
What is the purpose of the paranasal sinuses in the skull?
To reduce the weight of the skull
What is the function of the larynx in relation to the trachea?
To aid in keeping particles out of the trachea
Which of the following is NOT a function of the epiglottis?
Production of sound through vocal cord vibration
What is the anatomical location of the pharynx in relation to the nasal cavity and larynx?
Posterior to the nasal cavity and anterior to the larynx
What is the primary purpose of the goblet cells in the trachea?
To trap incoming particles and prevent their entry into the lungs
What is the characteristic of the tracheal wall that provides support and structure?
Incomplete cartilaginous rings
What is the term for the tubular passageway for air that extends from the larynx to the 5th thoracic vertebra?
Trachea
What is the point at which the lower respiratory tract begins?
After the larynx
What is the term for the branches of the trachea that lead to the right and left lungs?
Primary bronchi
What is the characteristic of airflow in the larger airways of the respiratory tree?
Higher flow volume and velocity
What is the main function of the visceral pleura?
To directly cover the lung
What is the primary determinant of perfusion pressure in the lungs?
Air pressure within the alveoli and conducting zones
What is the main function of the bronchioles?
To give rise to alveolar ducts
What is the primary role of the parietal pleura?
To attach the lungs to the thoracic cavity
What is the primary mechanism of gas flow in the respiratory system?
Gas flow driven by the attachments of the muscles to the ribs and diaphragm
What is the primary site of gaseous exchange in the respiratory system?
Alveoli-capillary membrane
Test your knowledge of the respiratory system, including its components, functions, and mechanisms of gas transport. Learn about internal and external ventilation, gas laws, and pulmonary pathologies. Assess your understanding of the respiratory system's role in providing oxygen to cells for ATP hydrolysis.
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