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SP2017- Anatomy Exam 3 > Lecture 7- Development of the Great Vessels > Flashcards

Lecture 7- Development of the Great Vessels Flashcards

1
Q

The left and right aortic arch derivatives

A

regress- proximal part of maxillary artery

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2
Q

The left and right aortic arch derivatives

A

regress- stapedial artery

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3
Q

The left and right aortic arch derivatives

A

L/R common carotid, internal carotid and external carotid aa.

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4
Q

Left 4th aortic arch derivative

A

part of aortic arch

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5
Q

Right 4th aortic arch derivative

A

part of r. subclavian a.

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6
Q

Left 6th aortic arch derivative

A

L. pulmonary a. and ductus arteriosus

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7
Q

Right 6th aortic arch derivative

A

R. pulmonary a.

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8
Q

Left 7th segmental aortic arch derivative

A

L. subclavian a.

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9
Q

Right 7th segmental aortic arch derivative

A

Part of R. subclavian a.

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10
Q

Left Dorsal aorta derivative

A

Descending thoracic aorta

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11
Q

Right Dorsal aorta derivative

A

Regress- part od R. subclavian a.

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12
Q

Left aortic sac derivative

A

part of aortic arch

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13
Q

Right aortic sac derivative

A

brachiocephalic trunk

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14
Q

Intersegmental aa. (from dorsal aorta) develop into …. aa. of the trunk specifically… and… aa.

A
  • somatic
  • intercostal
  • lumbar
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15
Q

The vitelline artery is initially … and supply…… and will fuse to form arteries in… of the gut, sepcifically… and…

A
  • paired
  • yolk sac
  • dorsal mesentery
  • celiac a.
  • superior mesenteric a.
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16
Q

The umbilical artery is initially … off the dorsal aorta and course to the… and will develop into …
during week 4, also forms secondary connection with dorsal aorta which is the… and AFTER birth, proximal portions persist as…. The distal parts are obliterated to form the…

A
  • paired ventral branches
  • placenta
  • inferior mesenteric a.
  • common iliac a.
  • internal iliac and superior vesical aa.
  • median umbilical ligaments
17
Q

Umbilical artery derivatives

A
  • inferior mesenteric, common iliac
  • proximal- internal iliac and superior vesical
  • distal- median umbilical ligaments
18
Q

3 major veins in embryonic venous system

A

vitelline
umbilical
cardinal

19
Q

The vitelline veins drain

A

GI and gut derivatives

20
Q

Before vitelline vv. enter sinus venosus, form plexus around duodenum and pass through..

A

septum tranversarum

21
Q

Vitelline veins:
Liver cords growing into the septum interrupt the course and form…
The network around the duodenum will forn a single vessel, the..

A
  • hepatic sinusoids

- hepatic portal vein

22
Q

Vitelline veins:

A reduction in the… results in…

A
  • left sinus horn

- rechanneling blood from L to R

23
Q

Enlargement of the right vitelline duct will form the…

The… is also derived from the right vitelline duct

A
  • Inferior vena cava

- Superior mesenteric vein

24
Q

The right-left anastomoses remodeled of the vitelline vv. drain into portal vein, this is the…

A

splenic vein and inferior mesenteric vein

25
Q

The umbilical vv. carry… blood from … to…

A
  • oxygenated
  • placenta
  • embryo
26
Q

The right umbilical vein will…

A

regress and obliterate

27
Q

The left umbilical vein will lose connection to sinus horn and form…. which bypasses the…. of the liver and drains blood directly into the…

A
  • ductus venosus
  • sinusoidal plexus
  • IVC
28
Q

Fate of ductus venosus

A

ligamentum venosum

29
Q

Fate of umbilical vein

A

ligamentum teres hepatis

30
Q

The cardinal veins drain

A

head , neck and body wall

31
Q

The cardinal vv. consist of:
Anterior which drain….
Posterior which drain…
Common which drain…

A
  • cephalic part of embryo
  • rest of embryo
  • ant and post join to form ? and empty into sinus horns
32
Q

Posterior cardinal vv. will be supplemented and later replaced by…

A

subcardinal and supracardinal vv.

33
Q

Major derivatives of posterior cardinal vv.

A

common iliac vv.

sacral portion of IVC

SP2017- Anatomy Exam 3 (14 decks)

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