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what nerve and nerve roots provide motor innervation to the diaphragm?
phrenic nerve (C3-C5)
what is the arterial supply and venous drainage of the diaphragm?
superior and inferior phrenic arteries/ veins
the nerve supply in the neurovascular bundle arises from
anterior rami of T1-T11 spinal nerves
anterior cutaneous branches pierce the _________ to supply the _________ wall
intercostal muscle/membrane in the parasternal line, anterior thoracic
what nerves provide sensory innervation to the diaphragm?
the phrenic nerve and intercostal nerve
phrenic nerve - central tendinous part
intercostal nerve - peripheral muscular part
select all components of the thoracic wall
thoracic cage
what are the different categories of ribs?
true ribs - ribs 1 -7
articulates directly with the sternum with their costal cartilages
false ribs - ribs 8 - 10
form a costal margin with the rib above them, indirectly connected with the sternum
floating ribs - ribs 11 and 12
do not connect with the sternum, end in posterior wall aperture
what are the boundaries of the superior thoracic aperture?
posterior -
lateral -
anterior -
posterior - T1 vertebra
lateral - first pair of ribs and costal cartilages
anterior - superior border of the manubrium
what are contained in the intercostal spaces?
intercostal muscles and membranes
select all components of the thoracic cage
sternum
what are the boundaries of the inferior thoracic aperture?
- posterior
- posterolateral
- anterolateral
- anterior
- posterior: T12 vertebra
- posterolateral: 11th and 12th pair of ribs
- anterolateral: costal margin
- anterior: xiphisternal joint
the caval hiatus is located in
the central tendon of the diaphragm
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