Thoracic walls (Anatomy of the Thorax)

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THORACIC WALLS

Dr.Sherif Fahmy

Skeleton of Thoracic Cage

Dr.Sherif Fahmy

Muscles of the Thoracic

Wall(Page 27 )

Dr.Sherif Fahmy

B- Muscles on inner aspect of thoracic wall

Sternocostalis & Subcostalis

Dr.Sherif Fahmy

Intercostal Nerves(Page 40)

• They are 11 nerves.• Classified into:

1- Typical intercostal nerves: 3rd – 6th nerve.2- Atypical intercostal nerves: 1st & lower 5 nerves.

Dr.Sherif Fahmy

Course of Typical Intercostal Nerves

Dr.Sherif Fahmy

Branches of Typical Intercostal

Nerves

Dr.Sherif Fahmy

Anterior cutaneous br. Dr.Sherif Fahmy

Thoraco-abdominal nerves (T7-T11)

Subcostal n.

Dr.Sherif Fahmy

Collateral br.

Dr.Sherif Fahmy

Blood Supply of

Thoracic Wall(Page 31)

Dr.Sherif Fahmy

Intercostal Arteries

1- Posterior intercostal arteries (11 pairs).2- Anterior intercostal arteries (9 pairs).

Dr.Sherif Fahmy

Posterior Intercostal

Arteries

Dr.Sherif Fahmy

Origin of Posterior Intercostal

Arteries

Dr.Sherif Fahmy

Subclavian artery Costo-cervical trunk

Descending thoracic aorta

3rd – 11th post. Intercostal arteries

Subcostal artery

1st & 2nd post. Intercostal arteries

Dr.Sherif Fahmy

Course of Posterior

Intercostal arteries

Dr.Sherif Fahmy

Branches of Posterior Intercostal

Arteries

Dr.Sherif Fahmy

Collateral br.

Dr.Sherif Fahmy

Internal Thoracic Artery

(Page 33)

Dr.Sherif Fahmy

Veins of Chest Wall

Internal Thoracic, Azygos &

HemiazygosDr.Sherif Fahmy

Vena Azygos(Page 37)

& Hemiazygos

Veins(Page 39)

Dr.Sherif Fahmy

Thoracic Outlet

Dr.Sherif Fahmy

Diaphragm

Dr.Sherif Fahmy

Thoracic Inlet

Dr.Sherif Fahmy

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Proceedings British Thoracic Association and Thoracic Society · Thorax 1982;37:228-240 Proceedings ofthe British Thoracic Association and the Thoracic Society The Spring Meeting

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