respiratory Flashcards
the nasal cavity is divided by the nasal septum into right and left
fossae
the intrinsic laryngeal muscles regulate speech by rotating
the arytenoid cartilages
the largest air passages that engage in gas exchange with the blood are
the respiratory bronchioles
respiratory arrest would most likely result from a tumor of the
medulla oblongata
a deficiency of pulmonary surfactant is most likely to cause
atelectasis
the source of pulmonary surfactant is
great alveolar cells
which of the following are fewest in number but largest in diameter?
segmental bronchi
the rhythm of breathing is set by neurons in
the medulla oblongata
which of the following muscles aid in deep expiration?
the rectus abdominis
in the bronchial tree, which of the following would be found distal to all of the rest.. Mucous glands, ciliated cells, alveolar ducts, cartilage rings, goblet cells
alveolar ducts
the digestive and respiratory tracts share a segment of the pharynx called the ____
laryngopharynx
within each lung, the airway forms a branching complex called the ___
bronchial tree
the flared areas of the nose lateral to the nostrils are shaped by ___ cartilages
alar
the three folds on the lateral walls of the nasal cavity are called ___
conchae
___ disorders reduce the speed of airflow through the airway
obstructive
some inhaled air does not participate in gas exchange because it fills the ___ of the respiratory tract
dead space
the largest cartilage of the larynx is the ___ cartilage
thyroid
the main pacemaker of the breathing rhythm is the ___ in the medulla oblongata
ventral respiratory group
the primary bronchi and pulmonary blood vessels penetrate the lung at a medial slit called the ___
hilum
the last line of defense against inhaled particles are phagocytes cells called ___
alveolar macrophages
