Diaphragm apertures,nerve supply,muscles of respiration -
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Thorax


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 Diaphragm- Nerve supply:

c345- 3 from 3

ie.,3roots below C3 including C3 forms the phrenic and innervatesdiaphragm

Phrenic Nerve

 Diaphragm apertures: spinal levels

"Voice Of America":
· In order from smallest to highest spinal number:
Vena cava: T8
Oesophagus: T10
Aorta: T12
· Note: Voice Of America (VOA) is a radio broadcast station

Diaphragm Apertures

Identify the major openings of the diaphragm

 Muscles of respiration

"Don't Exercise In Quicksand":
Diaprahm
External intercostals
Internal intercostals
Quadratus

 Superior mediastinum: contents

PVT Left BATTLE:
Phrenic nerve
Vagus nerve
Thoracic duct
Left recurrent laryngeal nerve (not the right)
Brachiocephalic veins
Aortic arch (and its 3 branches)
Thymus
Trachea
Lymph nodes
Esophagus

T.S at the level of T2

 Mediastinums: posterior mediastinum structures

DATES:
Descending aorta
Azygos and hemiazygous veins
Thoracic duct
Esophagus
Sympathetic trunk/ganglia

There are 4 birds in the above:
The esophaGOOSE (esophagus)
The vaGOOSE nerve
The azyGOOSE vein
The thoracic DUCK (duct)

Posterior and Middle mediastinum

 Rib costal groove: order of intercostal blood vessels and nerve

VAN

From superior to inferior:
Vein
Artery
Nerve

Costal groove

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