Questions And Answers
the bony thorax consists of
the single sternum, two scapulae, 2 clavicles, 12 ribs, 12 vertebrae posteriorly
the two important bony landmarks of the thorax that are used for locating the CR on the
posterioanterior (PA) and anterioposterior (AP) chest projection are the
vertebra prominens and jugular notch
the 4 divisions of the respiratory system are
trachea, bronchi, lungs, pharynx
another name for the adam's apple
laryngeal prominence, thyroid cartilage
another name for voice box
larynx
the brestbone is also called
sternum
what is another name for the shoulder blade
scapula
the collar bones are also called
clavicles
list the 3 divisions of the structure located proximally to the larynx that serves as a common
passageway for both food and air
nasopharynx, laryngopharynx, oropharynx
what is the name of the structure that acts as a lid over the larynx to prevent foreign objects such as
food particles from entering the respiratory system?
epiglottis
the trachea is located (anterior/posterior) to the esophagus
anterior
the ____ bone is seen in the anterior portion of the neck and is found just below the tongue or the
floor of the mouth
hyoid
if a person accidentally inhales a food particle, which bronchus is it most likely to enter, and why
right bronchus, because it is larger in diameter and more verticle
, what is the name of the prominence, or ridge seen when looking down into the bronchus where it
divides into the right and left bronchi?
carina
the carina is approximately at the level of the ___ vertebrae
T5
what is the term for the small air sacs located at the distal ends of the bronchioles, in which oxygen
and carbon dioxide are exchanged in the blood
alveoli
the delicate, double- walled sac or membrane containing the lungs is called
pleura
the outer layer of this membrane adhering to the inner surface of the chest wall and diaphram is the
parietal pleura
the inner layer adhering to the surface of the lungs is the __ or __
pulmonary or visceral pleura
the potential space between the visceral pleura and the parietal pleura is called
pleural cavity
air or gas that enters the space identified in D results in a condition called
pneumothorax
lower, concave portion of lungs
base
central area in which bronchi and blood vessels enter the lungs
hilum
upper, rounded portion above the level of the clavicles
apex
extreme outermost lower corner of the lungs
costophrenic angle
explain why the rt lung is smaller than the lt lung and the rt hemidiaphram is positioned higher than
the lt hemidiaphram
the presence of the liver on the rt