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SP16 Anatomy Exam 3 > L48 Embryo Great Vessels > Flashcards

L48 Embryo Great Vessels Flashcards

1
Q

Week 5m

A

Right superior truncus swelling
Left superior truncus swelling
RIght dorsal conus swelling
Left ventral conus swelling

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2
Q

Right superior truncus swelling grows

A

Distally and to the left

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3
Q

Left inferior truncus swelling grows

A

Distally and to the right

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4
Q

Truncus swellings twist around each other to form

A

aorticopulmonary septum

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5
Q

aortic arch arteries arise from

A

aortic sac

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6
Q

aortic arch arteries terminate in

A

right and left dorsal aortae

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7
Q

aortic sac will form (2)

A

Brachiocephalic a. (trunk)

Proximal aortic arch

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8
Q

First arch forms

A

Disappears but small portion forms maxillary artery

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9
Q

Second arch forms

A

Disappears but small portion forms
Hyoid artery
Stapedial artery

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10
Q

Third arch forms

A

Common carotid a
First part of Internal carotid a
External carotid a

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11
Q

Fourth arch forms

A

Left: part of aortic arch between left common carotid and left subclavian aa
Right: proximal segment of right subclavian

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12
Q

Pulmonary arch

A

Sixth arch

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13
Q

Sixth arch forms

A

Right: proximal right pulmonary a.
Left:
-Ductus arteriosus
-Left pumonary

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14
Q

Great vessels are derived from

A

Epicardium

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15
Q

Great vessel connections to aorta are formed by

A

ingrowth of arterial endothelial cells

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16
Q

Intersegmental arteries pass between and carry blood to

A

somites and their derivatives

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17
Q

Intersegmentsal arteries of neck

A

vertebral arteries

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18
Q

Intersegmental arteries of thorax

A

intercostal arteries

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19
Q

Intersegmental arteries of abdomen

A

lumbar arteries

20
Q

Fifth pair of intersegmental arteries in abdomen

A

common iliac

21
Q

Intersegmental arteries in sacral region

A

Lateral sacral arteries

22
Q

Vitelline aa develop into

A

Celiac trunk

Superior mesenteric a.

23
Q

Umbilical aa develop into

A

Inferior mesenteric

Secondary connection: Common iliac

24
Q

Umbilical artery after birth

A 
Proximal:
-Internal iliac
-superior vesical
Distal:
-median umbilical ligements (obliterated)
25
Q

Week 5 major veins

A

Vitelline
Umbilical
Cardinal

26
Q

Vitelline veins function

A

blood from yolk sac to sinus venosus

27
Q

Umbilical veins function

A

Oxygenated blood from mother to embryo

28
Q

Cardinal veins function

A

Draining embryo

29
Q

Week 4

A

Vitelline vv forms plexus around duodenum

Hepatic sinusoids

30
Q

Portal vein formed by

A

network around duodenum

31
Q

Superior mesenteric vein derived drom

A

vitelline vein

32
Q

Rechanneling of blood from left sinus horn reduction
Thru
Forms

A

Hepatocardiac channel

Forms hepatocardiac portion of inferior vena cava

33
Q

Caries blood from placenta to liver

A

Left umbilical vein

34
Q

Ductus venosus purpose

A

bypass sinusoidal plexus of liver

35
Q

Left umbilical vein will become

A

Ligamentum teres hepatis

36
Q

Ductus venosus becomes

A

ligamentum venosum

37
Q

Anterior cartdinal veins drain

A

Drain cephalic part of embryo

38
Q

Posterior Cardinal veins drain

A

Drain rest of embryo (not cephalic part)

39
Q

Weeks 5-7 veins

A

Subcardinal veins kidneys
Sacrocardinal veins lower extremities
Supracardinal veins body wall

40
Q

Anterior cardinal vein forms

A

Left brachiocephalic vein
Superior vena cava (also from prox. R. common cardinal)
Internal jugular vein

41
Q

Subcardinal vein forms

A

Left renal vein

Renal segment of Inferior vena cava

42
Q

Sacrocardinal vein forms

A

Left common iliac

Sacrocardinal segment of inferior vena cava

43
Q

Supracardinal vein and posterior cardinal vein forms

A

azygos vein

hemiazygos vein

44
Q

Thoracic duct from

A

Caudal right lymphatic duct

Left and right cranial thoracid ducts

45
Q

Right lymphatic duct from

A

cranial right thoracic duct

SP16 Anatomy Exam 3 (16 decks)

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