Ch. 4 (Tempkin) Flashcards
The aorta originates
at the left ventricle of the heart then ascends posterior to the pulmonary artery; it arches to the left then descends posterior to the diaphragm into the retroperitoneum of the abdominal cavity
Thoracic aorta
posterior to the diaphragm
Retroperitoneum
portion of abdominopelvic cavity posterior to the peritoneal sac
Abdominal aorta
abdominal cavity
The abdominal aorta bifuricates
into the common iliac arteries anterior to the body of the fourth lumbar vertebra
Aorta is the
largest artery in the body
Consists of ___ muscle layers
3
Intima
innermost
Media
middle
Adventitia
outer
3 anterior branches
celiac artery (CA), superior mesenteric artery (SMA), inferior mesenteric artery (IMA)
2 lateral branches
right renal artery (RRA), left renal artery (LRA)
Size is normal up to
3 cm in diameter
Longitudinal and long axis views are seen
in coronal scanning planes and sagittal scanning planes
Short axis (or axial) sections
transverse scanning planes