Overview Anatomy of the Thorax Flashcards
Label
Thoracic planes and lines
What lies between the internal and innermost intercostal muscles
Neurovascular bundles; most important ones are the superior which sit in the groove of the upper rib
They run in the orientation of Vein Artery Nerve (VAN)
Parietal Pleura and Visceral Pleura
They make up the pleura (sac) that encoloses each lung
Visceral Pleura covers the lungs and the parietal lines pulmonary cavities
(REVISE)
Role of fluid in parietal cavity
Decreasing friction during ventilation (potential space, not a real one)
Discuss what must be avoided by a needle piercing the pleural cavity
Avoid the neurovascular bundle by inserting the needle close to the upper border of the lower rib
Openings of the thorax
Superior and Inferior Thoracic Aperture (they are quite narrow)
Thoracic outlet syndrome
Blockages of any of the structures in the superior thoracic aperture (e.g. brachial plexus nerves and artieries) such as from a tumour
True ribs
1-7; they articulate directly with the sternum
False ribs
8-10 as they do not articulate with the sternum; instead only with the rib above
11th-12th ribs
They do not articulate at all; they exist posteriorly but not anteriorly
Label
Why do vertebral bodies increase in size as they go down the body
The load increases
Two main functions of pec major muscles
Adduction and Medial rotation
What attaches at the scalene tubercle and what is its role
Anterior scalene; a neck muscle that attaches to the first rib which is an accessory muscle of ventilation