Thoracic wall neurovascular and blood supply

thoracic wall is supplied by

thoracic aorta, subclavian artery, axillary artery

thoracic wall is supplied by thoracic aorta via

posterior intercostal and subcostal arteries

thoracic wall is supplied by subclavian artery via

internal thoracic and supreme intercostal arteries

thoracic wall is supplied by axillary artery via

superior and lateral thoracic arteries

posterior intercostal arteries origin

Superior intercostal artery (intercostal spaces 1 and 2) and thoracic aorta (remaining intercostal spaces)

course of posterior and anterior intercostal arteries

pass between internal and innermost intercostal muscles

distribution of posterior and anterior intercostal arteries

intercostal muscles, overlying skin, parietal pleura

internal thoracic artery origin

subclavian artery

internal thoracic artery course

passes inferiorly and lateral to sternum between costal cartilages and transversus thoracic muscle to divide into superior epigastric and musculophrenic arteries

internal thoracic artery distribution

by way of anterior intercostal arteries to intercostal spaces 1-6 and musculophrenic artery

subcostal artery origin

thoracic aorta

course of subcostal artery

Courses along inferior border of 12th rib

distribution of subcostal artery

muscles of anterolateral abdominal wall

directly from thoracic aorta are the

posterior intercostal arteries and subcostal artery

the posterior intercostal arteries supply ______ and anastomose with _______

intercostal spaces 3-11, anterior intercostal arteries and musculophrenic artery

directly from subclavian artery are the

costocervical trunk, internal thoracic, dorsal scapular, and thyrocervical trunk

the costocervical trunk branches _________, supplies ____, takes the place of ____

supreme intercostal artery, 1st and 2nd intercostal spaces, posterior intercostal artery

thyrocervical trunk supplies

transverse cervical artery

subclavian artery supplies _____ which supplies _____

internal thoracic artery; anterior intercostal artery to spaces 1-6, musculophrenic artery which replaces AIA for spaces 7-9, and superior epigastric artery

axillary artery is the continuation of

subclavian artery

branches of axillary artery include

supreme thoracic, sub scapular, thoracodorsal, lateral thoracic

the supreme intercostal artery is a branch from

costocervical trunk of subclavian artery

branches from supreme intercostal artery supply

1st and 2nd intercostal spaces

branches from thoracic aorta supply

3rd -11th intercostal spaces and dorsal branch from posterior intercostal arteries supply back muscles, spinal cord, vertebral column, and skin

the anterior intercostal arteries come off as pairs from each

internal thoracic artery

superior branch of anterior intercostal artery will run on

inferior surface of superior rib, and inferior branch will run on superior margin of inferior rib

anterior intercostal arteries also supply _____ and are absent from ____

pectoral muscles, breast, skin; 11-12th intercostal space

internal thoracic artery supplies

1-6th intercostal spaces

musculophrenic artery supplies

7th-9th intercostal spaces

intercostal vein accompanies

intercostal arteries

there are ___ posterior intercostal veins and ___ subcostal vein

11, 1

anterior intercostal veins are tributaries of

internal thoracic vein

posterior intercostal veins will anastomose with

anterior intercostal veins

sympathetic trunk connects

consecutive paravertebral ganglia (one ganglion per spinal nerve)

sympathetic trunk is pathway to

ascend or descend to appropriate spinal level (allows distribution from head to toe)