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which of the following belongs to the respiratory portion of the lower respiratory system
which of the following does NOT belong to the conducting portion of the respiratory system
which of the following describes a correct order of structures in the respiratory system
pharynx, larynx, trachea, bronchi, bronchioles
for air to enter the lungs during inspiration
the pressure inside the lungs must become lower than the atmospheric pressure
when stretch receptors in the lungs are activated
expiration will occur, the lungs will deflate, the inspiratory area is inhibited, impulses are sent along the vagus nerve
respiration rates are controlled mainly by the
medulla oblongata & pons and the amount of CO2 in the blood
make the trachea rigid to keep the airway open, make the bronchi rigid to keep them open, are C shaped in the trachea and allow the esophagus to expand behind it, are not found in the esophagus
the flap of cartilage that closes off the larynx and prevents food and water from entering the larynx during swallowing is the
which of the following affect the release of O2 from hemoglobin
the following affect the release of O2 - partial pressure of O2, temperature, acidity & exercise, CO2 in the tissue
changes in the respiratory system during exercise include all but which of the following
less CO2 is produced
name the sections of the nasal cavity and how they are divided
top, middle & bottom by nasal conchae and into right & left sides by the nasal septum
during inspiration, the diaphragm
contracts and drops, expanding thoracic cavity size and decreases its pressure
the _______ lung is smaller than the _______ lung due to position of the heart
right lung is smaller than left
parietal pleural membrane lines the thoracic cavity while the _________ pleural membrane covers the lung
visceral pleural membrane
hypocania is caused from
voluntary hyperventilation and is very dangerous as the O2 level may drop dangerously low and cause fainting
lower part of the pharynx just below the oropharynx opening into the larynx and the esophagus
The bronchi and all their branches that function as passageways between the trachea and the alveoli
an emergency procedure to help someone who is choking because food is lodged in the trachea
the air that remains in the lungs after the expiratory reserve volume is expelled is the
the immediate increase in ventilation at the onset of exercise is a result of stimulation of the
an inflammation of the mucous membrane lining the nose (usually associated with nasal discharge)
respiratory distress syndrome
condition that can occur in a premature infant in which the lungs are not matured to the point of manufacturing lecithin, a pulmonary surfactant, resulting in a collapse of the alveoli, which leads to cyanosis and hypoxia
sudden infant death syndrome
completely unexpected and unexplained death of an apparently well, or virtually well, infant. The most common cause of death between the second week and first year of life (crib death).
blockage of a branch of pulmonary artery that will stop blood flow to a group of lobules or alveoli.
a condition in which insufficient or no oxygen and carbon dioxide are exchanged on a ventilatory basis
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