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Thorax 3 - Lungs - UNC MS1 Anatomy
Thorax 3 - Lungs - UNC MS1 Anatomy
8
Anatomy
Graduate
11/06/2011

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Term
what are the two pleural recesses?
Definition
costomediastinal and costodiaphragmatic recesses
Term
what is a tension pneumothorax?
how can it affect the heart?
Definition
air gets into the lungs with each breath, lung collapses
pushes down on the heart, preventing it from filling and causing hypotension
Term
what is the three part of the left lung?
Definition
lingula
Term
pathway of the bronchial tree
Definition
trachea --> main bronchus --> lobar bronchus --> segmental bronchus --> bronchioles
Term
what dilates and constricts the bronchioles, respectively?
Definition
sympathetic and parasympathetic nerves, respectively (part of the pulmonary plexus)
Term
what muscles do we use to inspire (principal and accessory)?
to expire?
Definition
principal - ext. intercostals and diaphragm
accessory - sternocleidomastoid and scalenes
to expire actively --> int. intercostals and abdominal muscles
Term
esophagus location and innervation
Definition
descends on anterior bodies of vertebrae
innervated by sympathetic and parasympathetic (anterior vagal trunk and posterior vagal trunk)
Term
what veins run on the right and left sides of vertebrae, respectively?
Definition
right - azygos
left - hemiazygos (receives lower 4 posterior intercostal veins) and accessory hemiazygos (receives middle 4)
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