Arteries Flashcards
Dorsal intercostal
ventral and dorsal branches arise from it; first 3 come from the costocervical trunk; remaining 9 come from the aorta; have lateral cutaneous branches that perforate the intercostal m. to supply cutaneous structures (incl. mammary glands); anastomose with ventral branches from internal thoracic a./v.
Ventral intercostal
come from internal thoracic artery, anastomose with dorsal intercostals, perforate ventral aspect of intercostal m.
Internal thoracic
branch of the subclavian artery, leading to the ventral aspect of the intercostal space; gives off the ventral intercostal a.
Lateral thoracic
emerge from the axilla between the latissimus dorsi and deep pectoral muscles; branches of the axillary a. that supply muscles, skin and subcutaneous tissues, including cranial thoracic mamma.
Cranial epigastric
terminal branch of the internal thoracic a. that emerges from the thorax in the angle between the costal arch and the sternum; passes caudally on the deep surface of the rectus abdominis; gives rise to the cranial superficial epigastric; terminates in deep surface of the rectus abdominus
Cranial superficial epigastric
perforates the muscle and runs caudally on its external surface; supplies skin over rectus abdominis and caudal thoracic/cranial abdominal mammae
Pulmonary trunk
coming out of the right ventrical, branches into left and right pulmonary artery carrying deoxygenated blood to the lungs
R & L pulmonary artery
head into their respective lungs
Aorta (ascending)
extends cranially, covered by pericardium, makes sharp bend dorsally to become the aortic arch
Aortic arch
runs caudally, becoming descending aorta
Descending aorta
located ventral to the vertebrae; part cranial to the diaphragm is thoracic aorta, part caudal is the abdominal aorta
Brachiocephalic trunk
first branch of the aortic arch, passes obliquely to the right across the ventral surace of the trachea; terminates at R common carotid a.
Common carotid (R&L)
arises from the brachiocephalic trunk; heads cranially to head
Subclavian (R)
brachiocephalic becomes this just after R common carotid a.
Subclavian (L)
arises from aortic arch, passes obliquely to the left across the ventral surface of the esophagus
Vertebral
crosses the medial surface of the first rib and disappears dorsally between the longus colli and the scalenus muscles
Costocervical trunk
arises distal to the vertebral artery, crosses its lateral side, extends dorsally as far as the vertebral end of the first rib; supplies the structures of the first, second, and third intercostal spaces; supplies the muscles at the base of the neck, muscles dorsal to first few thoracic vertebrae
Superficial cervical
arises from the subclavian opposite of the origin of the internal thoracic artery, supplies the base of the neck and the adjacent scapular region
Bronchoesophageal
leaves th eright 5th intercostal artery close to its origin and crosses the left face of the esophagus
Esophageal
comes off the bronchoesophageal artery to supply the esophagus
Bronchial
blood supply to the lung tissue, terminus of the bronchoesophageal artery
Intercostal
dorsal and ventral, supply the intercostal structures
R coronary
branch off the ascending aorta, supplies the right atria, ventricle and auricle of the heart; run in the coronary groove
L coronary
branch off the ascending aorta, supplies the left side of the heart, branches into the paraconal interventricular branch and circumflex branch; circumflex branch later gives off the subsinuosal interventricular branch
Paraconal interventricular branch (L coronary a.)
runs in the Paraconal interventricular groove
Subsinuosal interventricular branch (L coronary a.)
runs in the Subsinuosal interventricular groove, comes off of the Circumflex branch of the L coronary a.
Circumflex branch (L coronary a.)
terminus of the L coronary a., extends caudally in the left part of the coronary sulcus and supplies the subsinuosal interventricular branch
