Lecture 11 Flashcards
Where do the aorta and great vessels develop?
The pharyngeal arches
What are the great vessels that come off the aortic arch?
Brachiocephalic splits into right subclavian and right common carotid, then left common carotid and left subclavian.
Where do the coronary arteries leave the aorta?
Just after the aortic valve.
What can coronary artery disease cause?
Angina, heart attack, sudden death
What is the difference between arteriosclerosis and atherosclerosis?
Arterio is a narrowing due to hardening/stiffening of vessels. athero is specifically a narrowing due to plaque build up.
What causes blockage in atherosclerosis of coronary arteries?
Fatty lipids, calcium deposits and abnormal inflammatory cells from a plaque which can rupture and cause a blood clot.
What other arteries are susceptible to arteriosclerosis to cause a cerebral stroke?
Carotid arteries.
What is a malformation that can cause dysphagia?
Anomalous right subclavian artery
What is stenosis of the pulmonary arteries?
This is narrowing of pulmonary trunk. Increases pressure on the right side and causes right to left shunt as part of tetralogy of Fallot.
What is interruption of arch arteries treated with?
Surgery asap and prostaglandins until then to keep arterial duct open to allow mixing.
What is coarctation?
Narrowing in the aorta
What does an aortic aneurysm increase the risk of?
aortic dissection
What develops from the 3rd pharyngeal arch?
left and right common carotid arteries
What develops from the 4th pharyngeal arch?
brachiocephalic and aortic arch
What develops from the 6th pharyngeal arch?
arterial duct
