23 Questions
What is the main function of the respiratory system?
Conducting air to the lung
Which of the following is NOT part of the respiratory (conducting) passages?
Alveoli
Where is the vestibule located in the nasal cavity?
Anterior dilated part of the nose
What is the main component of the wall of the vestibule in the nasal cavity?
Hyaline cartilage
Which one of the following is NOT a function of the nasal cavity?
Gas exchange
What type of epithelium lines the posterior part of the nasal cavity?
Respiratory epithelium
What type of epithelium lines the Intra-Pulmonary Bronchi?
Pseudostratified columnar ciliated epithelium
What cells secrete serous fluid in the Terminal Bronchioles?
Clara cells
What type of cells are more numerous in the alveoli?
Type I Pneumocytes
What is the composition of the Inter-alveolar Septum?
Connective tissue, phagocytic cells, and blood capillaries
What is the lining of the Alveolar Sacs primarily composed of?
Pneumocytes
What type of epithelium covers the middle and inferior conchae in the respiratory area of the nasal fossa?
Pseudostratified columnar ciliated epithelium with goblet cells
Which area of the nasal fossa is covered by olfactory epithelium?
Superior concha
What is the function of the trachealis muscle in the trachea?
To constrict the tracheal lumen during coughing and forced expiration
Which type of cartilage forms the fibro-cartilaginous layer of the trachea?
Hyaline cartilage
What is the composition of the lamina propria in the trachea?
Contains blood vessels, nerves, and an abundance of elastic fibers
Which structure marks the beginning of the trachea?
Cricoid cartilage
What is the function of surfactant in the alveoli?
To cover the surface of alveolar cells and prevent alveolar collapse
Which type of cells are responsible for engulfing foreign particles like dust or carbon in the lung alveoli?
Dust Cells
What forms the blood-air barrier for the exchange of gases in the lungs?
Cytoplasm of type I pneumocytes
Which type of pneumocytes contain secretory granules with surfactant?
Type II Pneumocytes
What are Heart Failure Cells responsible for engulfing in patients with heart failure?
Red Blood Corpuscles
What is the function of pleural membranes in the respiratory system?
To cover the outer surface of the lungs and internal wall of the thoracic cavity
Stay organized and prepared with the detailed schedule of lectures for Prof. Dr. Reda Mohammed's class covering various systems like Lymphatic, Circulatory, Skin, Digestive tract, Respiratory, Endocrine, Urinary, Male and Female genital, Nervous systems, along with exam dates and revision sessions.
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