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second year > development of great heart and vessels > Flashcards

development of great heart and vessels Flashcards

1
Q

what two venous structures are formed from the sinus venous?

A

the vena cava (esp SVC)

coronary sinus

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2
Q

what chamber of the heart does the sinus venous form?

A

the smooth part of the right atrium

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3
Q

what part of the heart does the primordial atrium form?

A

the right and left auricles

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4
Q

what chamber of the heart is formed from the pulmonary veins?

A

the smooth left atrium

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5
Q

what chamber of the heart is formed from the primordial ventricle?

A

the left ventricle

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6
Q

what part of the heart is formed from the proximal 1/3 of the bulbs cords?

A

the right ventricle

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7
Q

what part of the heart is formed from the conus cords (middle 1/3 of the bulbs cords)

A

infundibulum (RV) ad aortic vestibule (LV)

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8
Q

what part of the heart is formed from thetruncus arteriosus, distal 1/3 of the bulbs cords?

A

roots and proximal parts of the pulmonary trunk and aorta

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9
Q

what is formed from the aortic sac?

A

the proximal aortic arch and proximal brachiocephalic trunk

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10
Q

what is formed from the 3rd aortic arch?

A

the common carotid arteries (left and right)

the internal carotid arteries (left and right)

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11
Q

what os formed from the 4th aortic arch on the right?

A

the right proximal subclavian artery

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12
Q

what is formed from the 4th aortic arch on the left?

A

the middle aortic arch

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13
Q

what is formed from the 6th aortic arch on the right?

A

the right pulmonary artery

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14
Q

what is formed from the 6th aortic arch on the left?

A

the left pulmonary artery and ductus arteriosus

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15
Q

what is formed from the 7th intercostal artery on the right?

A

the right distal subclavian artery

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16
Q

what is formed from the 7th intersegmental artery on the left?

A

the left subclavian artery

17
Q

what happens with a ‘patent foramen ovale’?

A

the foramen ovale remains open and is connected with the osmium secundum

18
Q

in a patent ductus arteriosus, where does the full developed ductus arterioles extend between?

A

the pulmonary trunk and the aorta distal to the origin of left subclavian

19
Q

what are the two different causes of an atrial septal defect (ASD)?

A
  • failure of development of septum primum

- failure of closure of foramen primum

20
Q

what causes a ventricular septal defect?

A

a defect either in the membranous part of IV septum (derived from the endocardial cushion) or the muscular portion of the IV septum
also can be caused by failure of fusion of membranous or muscular portions

second year (24 decks)

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