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Anatomy II > Vessel embryology > Flashcards

Vessel embryology Flashcards

1
Q

Derivatives of 1st pharyngeal arch a.

(light blue)

A
  • a. maxillaris
  • a. carotis ext.
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2
Q

Derivatives of 2nd pharyngeal arch a.

(light orange)

A

a. stapedia

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3
Q

Derivatives of 3rd pharyngeal arch a.

(red)

A
  • proximally: a. carotis comm.
  • distally: 1st part of a. carotis int.
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4
Q

Derivatives of 4th pharnygeal arch a.

(brown)

A
  • left: arcus aorticus
  • right: proximal part of a. subclavia dextra
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5
Q

Derivatives of 6th pharyngeal arch a.

(blue)

A
  • left:
    • a. pulmonalis sinistra
    • ductus arteriosus Botalli
  • right:
    • a. pulmonalis dextra

​

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6
Q

How do the aa. coronariae develop?

A
  1. stem cells from liver migrate into heart tube
  2. vascular channels form peritruncal ring
  3. prox. portions survive → a. coronaria dex./sin.
  4. distally: epicardium forms remaining parts by epithelio-mesenchymal transformation
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7
Q

Where do the different parts of the aorta originate from?

A
  • aorta ascendens: truncus arteriosus, aortic sac
  • arcus aorticus: left 4th pharyngeal arch a.
  • aorta descendens: left aorta dorsalis
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8
Q

Where do the aa. subclaviae originate from?

A
  • left: left 7th a. intersegmentalis
  • right:
    • proximally: right 4th pharyngeal arch a.
    • medially: right aorta dorsalis
    • distally: right 7th a. intersegmentalis
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9
Q

Where do the vitelline aa. originate from?

What do they form?

Another name.

A

= a. omphalomesenterica

originate from aorta dorsalis

form: unpaired aortic branches

  • truncus coeliacus: supplies foregut
  • a. mesenterica sup.: supplies midgut
  • a. mesenterica inf.: supples hindgut
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10
Q

Where do the aa. umbilicales originate from?

What do they form?

A

originate from aorta dorsalis

form:

  • a. iliaca int.
  • lig. umbilicale mediale
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11
Q

What do the vitelline vv. form?

A
  • hepatic sinusoids in liver
  • vv. revehentes
  • right: hepatic portal system = vv. advehentes, IVC hepatocardiac segment
  • left: regresses
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12
Q

What do the vv. umbilicales form?

Remnants?

A
  • right: degenerates
  • left:
    • cranial part degenerates
    • caudal part → v. umbilica (→ lig. teres hepatis)
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13
Q

What is connected by the ductus venosus?

Remnants?

A

v. umbilica + IVC hepatocardiac segment

→ lig. venosum

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14
Q

What do the 2 vv. cardinales ant. form?

What does this structure become?

A

anastomosis → v. brachiocephalica

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15
Q

Which structures contribute to the SVC?

A

v. cardinalis ant. dextr. + v. cardinalis communis dextra

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16
Q

Give another name for v. cardinalis communis

A

ductus Cuvieri

17
Q

What happens to the v. cardinalis ant. sinistra?

A

caudal part degenerates → lig. v. cavae sin.

18
Q

Which structure is formed by the v. cardinalis communis sinistra?

A

Marshall v.

19
Q

What does the v. cardinalis post. dextra form?

A
  • root of v. azygos
  • v. iliaca int.
20
Q

Where does the v. cardinalis post. sin. enter into and eventually form?

A

enters into v. brachiocephalica sinistra → v. intercostalis sup. sin.

21
Q

What do the vv. subcardinales form?

A
  • form an anastomosis with each other
  • left renal v.
  • suprarenal vv.
  • gonadal vv.
  • IVC prerenal, renal segments
22
Q

Which vv. contribute to the v. azygos?

A
  • 4th + 11th v. intercostalis
  • v. supracardinalis dextra
  • v. cardinalis post. dextra
23
Q

Which vv. contribute to the v. hemiazygos?

A
  • 4th + 7th v. intercostalis
  • v. supracardinalis sinistra
24
Q

What do the vv. supracardinales form caudally to the kidneys?

A
  • right: IVC postrenal segment
  • left: degenerates
25
Q

What are the segments of the IVC and by what are they formed?

A

​in craniocaudal direction:

  1. hepatocardiac: right v. omphalomesenterica, vv. revehentes
  2. prerenal: right subcardinal + anastomosis vv. subcardinales
  3. renal: anastomosis right sub-/supracardinal v.
  4. postrenal: distal part right supracardinal v.

Anatomy II (13 decks)

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