山东大学：《人体解剖学》课程PPT教学课件（讲稿）动脉 The Arteries

The Arteries SHANDONG UNVERSITY Liu Zhiyu

The Arteries SHANDONG UNIVERSITY Liu Zhiyu

The Arteries Characteristics Symmetry In the trunk of the body consist parietal and visceral branches Shortest possible course a Run on flexor surfaces a Usually do not pass directly through muscles, avoiding compression Together with the veins and nerves in a sheath of fascia to form neurovascular bundle

The Arteries Characteristics ◼ Symmetry ◼ In the trunk of the body consist parietal and visceral branches ◼ Shortest possible course ❑ Run on flexor surfaces ❑ Usually do not pass directly through muscles, avoiding compression ◼ Together with the veins and nerves in a sheath of fascia to form neurovascular bundle

Pulmonary trunk Arises from right ventricle Runs up back and to the left Bifurcates inferior to aortic arch into right and left pulmonary arteries, one for each lung

Pulmonary trunk ◼ Arises from right ventricle ◼ Runs up, back ,and to the left ◼ Bifurcates inferior to aortic arch into right and left pulmonary arteries, one for each lung

Arterial ligament Remnant of ductus arteriosus A fibrous band that connects bifurcation of pulmonary trunk with inferior border of aortic arch

Arterial ligament ◼ Remnant of ductus arteriosus ◼ A fibrous band that connects bifurcation of pulmonary trunk with inferior border of aortic arch

Aorta Patent Ductus arteriosus Pulmonary artery

Pulmonary Artery Aorta Patent Ductus Arteriosus

Arteries of systemic circulation

Arteries of systemic circulation

★ Aorta Ascending aorta Level of second right sternocostal joint Aortic arch 14 Descending aorta L4 Common iliac a

★ Aorta Ascending aorta Aortic arch T4 Descending aorta L4 Common iliac a. Level of second right sternocostal joint

Aorta Ascending aorta Arises from left ventricle Runs upward, forward and to the right EXtends to level of second right sternocostaljoint Branches: right and left coronary arteries

Aorta Ascending aorta ◼ Arises from left ventricle ◼ Runs upward, forward and to the right ◼ Extends to level of second right sternocostal joint ◼ Branches: right and left coronary arteries

Aorta Aortic arch Continuation of ascending aorta Curves upward, to the left and posteriorly, then downward, arching over left principal bronchus and pulmonary trunk to lower border of T4 level, to become descending aorta Branches(from right to left a Brachiocephalic trunk Left common carotid artery Left subclavian artel Aortic glomera-chemoreceptor

Aorta Aortic arch ◼ Continuation of ascending aorta ◼ Curves upward, to the left and posteriorly, then downward, arching over left principal bronchus and pulmonary trunk to lower border of T4 level, to become descending aorta ◼ Branches (from right to left ) ❑ Brachiocephalic trunk ❑ Left common carotid artery ❑ Left subclavian artery ◼ Aortic glomera－chemoreceptor

Aorta Descending aorta Thoracic aorta Abdominal aorta

Aorta Descending aorta ◼ Thoracic aorta ◼ Abdominal aorta