called the voice box because it contains the vocal cords
larynx
trachea branches into these right and left structures
bronchus (bronchi)
mucus drains from these mucous membrane lined structures into the nasal passages
paranasal sinuses
respiratory structure that is connected to the middle ear by eustachian tube
nasopharynx
large tube supported by rings of cartilage; called the windpipe
trachea
respiratory structures concerned with the exchange of respiratory gases
alveolus
tiny respiratory passages that deliver air to the alveoli
bronchioles
structure that diverts food and water from the respiratory passages to esophagus by covering the trachea
epiglottis
point at which the trachea splits causes intense coughing when stimulated by a suction catheter
carina
part of the digestive and respiratory systems
oropharynx
the bronchi, bronchioles, and alveoli
collectively called the bronchial tree
keeps the lungs expanded
negative intrapleural pressure
anatomical dead space is
located within the conducting passages of the respiratory system
causes the chest to become barrel shaped
emphysema
procedure used to withdraw air, blood, or pus from the intrapleural space is called
thoracentesis
lungs are good at gas exchange
thin alveolar and pulmonary capillary walls favor gas exchange
lungs have a large surface area
closeness of the alveoli to the pulmonary capillaries ensures a high rate of exchange
true regarding the transport of oxygen and carbon dioxide
most of co2 is converted to the bicarbonate ion
a very small amount of o2 is dissolved in plasma
almost all the oxygen is transported by the hemoglobin in the red blood cells
true regarding alveoli
part of the bronchial tree
site of respiratory exchange
contain surfactant
deficiency of surfactanct causes
alveolar collapse
if intrapleural pressure exceeds intrapulmonic pressure
the lung collapses
occurs during inhalation
diaphragm contracts
air moves into the lungs
thoracic volume increases
what effect do the abdominal muscles have on ventilation
they are accessory muscles of respiration used for forced exhalation
components of vital capacity
tidal volume
expiratory reserve volume
inspiratory reserve volume
air moved into and out of the lungs during normal quiet breathing is 500 ml this volume is referred to as
tidal volume
true regarding the total lung capacity and the vital capacity
the total lung volume is equal to the vital capacity plus residual volume