20 Questions
What encloses the left and right pleural cavities, each surrounding a lung?
Thoracic wall
Which structure contains the heart, esophagus, trachea, major nerves, and major systemic blood vessels?
Mediastinum
What is the structure that closes the inferior thoracic aperture?
Diaphragm
Which part of thorax is flexible and consists of segmentally arranged vertebrae, ribs, muscles, and sternum?
Thoracic wall
Which part of the thorax can extend above the level of rib 1?
Pleural cavities
Which ribs are considered floating ribs?
11th and 12th
Which structure forms the sternal angle, a major surface landmark used in physical examinations of the thorax?
Manubrium of sternum
Which vertebrae does the head of each rib articulate with?
Body of its own vertebra and body of vertebra above
What is the approximate horizontal plane for the superior margin of manubrium?
Same as IVD between T2 & T3
What forms the skeletal elements of the inferior thoracic aperture?
Body of vertebra T12 posteriorly, 12th rib & distal end of 11th rib posterolaterally, xiphoid process anteriorly
What type of tissue lines the nasal cavities?
Pseudostratified columnar epithelium
What is the function of the conchae in the nasal cavities?
To increase the surface area of the nasal mucosa
What is the main function of the hairs just inside the nostrils?
To help block the entry of dust into the respiratory system
Which structure separates the 2 nasal cavities within the skull?
Nasal septum
What is the composition of the nose, which air enters and leaves the respiratory system through?
Bone and cartilage covered with skin
Where does the mucus produced in the sinuses drain into?
Nasal cavities
What is the primary function of the paranasal sinuses?
To lighten the skull
What is the purpose of the eustachian tubes?
To allow the eardrums to vibrate properly
What is the function of the palatine tonsils in the oropharynx?
To form a ring of lymphatic tissue around the pharynx
What prevents collapse of the larynx and maintains open air passages?
Cartilage
Test your knowledge of the anatomy of the respiratory system with this comprehensive quiz covering the structure and functions of the nose, pharynx, larynx, trachea, bronchopulmonary segments, lungs, lobes, and alveoli. Learn about the types of pleura and the blood supply to the lungs in this informative lecture.
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