RESPIRATORY Lecture 1-Intro
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University
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M.Parthiban Munuswamy
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29 Slides • 24 Questions
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Multiple Choice
What is the main function of the respiratory system?
Oxygen transport
Gas exchange
Nutrient absorption
Hormone regulation
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Multiple Choice
Which of the following is the primary muscle used for breathing?
Intercostal muscles
Diaphragm
Abdominal muscles
Pectoral muscles
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Multiple Choice
Which components are part of the upper respiratory tract?
Trachea, bronchi, lungs
Nose, pharynx, larynx
Alveoli, pleura, diaphragm
Medulla oblongata, chemoreceptors, pleura
8
Multiple Choice
What are the components of the lower respiratory tract?
Nose, pharynx, larynx
Alveoli, pleura, diaphragm
Trachea, bronchi, lungs
Medulla oblongata, chemoreceptors, pleura
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Multiple Choice
Where in the lungs does gas exchange primarily take place?
Bronchioles
Alveoli
Pleura
Larynx
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Multiple Choice
What molecule is responsible for oxygen transport in the blood?
Myoglobin
Hemoglobin
Albumin
Globulin
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Multiple Choice
How is most carbon dioxide transported in the blood?
Dissolved in plasma
Bound to hemoglobin
As bicarbonate ions
Attached to white blood cells
12
Multiple Choice
What is the protective membrane that surrounds the lungs called?
Pericardium
Peritoneum
Pleura
Meninges
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Multiple Choice
Which part of the respiratory system is also known as the voice box?
Pharynx
Larynx
Trachea
Epiglottis
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Multiple Choice
What is the common term for the trachea?
Windpipe
Air sac
Alveolus
Bronchiole
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Multiple Choice
What structures are involved in the branching of the airway?
Alveoli and pleura
Bronchi and bronchioles
Trachea and larynx
Pharynx and diaphragm
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Multiple Choice
Which receptors help in the regulation of respiratory rate?
Baroreceptors
Photoreceptors
Chemoreceptors
Thermoreceptors
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Multiple Choice
What happens to the diaphragm during inhalation?
It contracts
It relaxes
It expands
It stiffens
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Multiple Choice
What occurs in the diaphragm during exhalation?
It contracts
It expands
It relaxes
It stiffens
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Multiple Choice
What are the components of the upper airways in the respiratory system?
Lungs, pleura, bronchi, alveoli
Nasal cavity, pharynx, larynx, trachea
Bronchi, alveoli, thorax, diaphragm
Pulmonary arteries, pulmonary veins, pleura, bronchial
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Multiple Choice
What is the function of the respiratory mucosa in the nasal cavity?
To produce surfactant-containing fluid
To secrete mucous
To deliver oxygenated blood to the heart
To trap dust and bacteria and destroy it
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Multiple Choice
Which structure in the respiratory system is also known as the 'voice box'?
Larynx
Pharynx
Nasal cavity
Trachea
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Multiple Choice
What is the function of the paranasal sinuses in the nasal cavity?
To produce pleural fluid
To deliver blood to the lung for oxygenation
To warm, humidify, and filter air
To allow the lungs to move over the thoracic wall during breathing
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Multiple Choice
What is the main function of the pleura in the respiratory system?
To support and maintain patency
To allow contraction to decrease the diameter of airway
To provide protection for lungs, heart, and vessels
To cover the external lung surfaces
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Multiple Choice
What is the site of gas exchange in the lower respiratory tract?
Bronchi & alveoli
Lungs
Pleura
Thorax & diaphragm
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Multiple Choice
What is the function of the alveoli in the respiratory system?
To produce surfactant-containing fluid
To maintain moist surface & reduce surface tension
To allow contraction to decrease the diameter of airway
To trap foreign particles & eliminate it
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Multiple Choice
What is the primary muscle of breathing in the respiratory system?
Scalene
Sternocleidomastoid
Diaphragm
External intercostals
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Multiple Choice
What is the main function of the lung in the respiratory system?
Gas exchange
Respiration control
Acid-base regulation
Reaction to injury
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Multiple Choice
What is the main function of the lung in the respiratory system?
Respiration control
Gas exchange
Acid-base regulation
Reaction to injury
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