CPR > Development of Great Vessels > Flashcards

Development of Great Vessels Flashcards

(50 cards)

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1
Q

Where is the aortic sac?

A

Expansion at distal truncus arteriosus

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2
Q

What arteries arise from the aortic sac?

A

Aortic Arches (AA)

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3
Q

What do the aortic arches connect?

A

Aortic sac to the Dorsal Aorta

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4
Q

How many pairs of aortic arches are there?

A

6 pairs

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5
Q

Through what processes are aortic arches formed?

A

Vasculogenesis and Angiogenesis

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6
Q

What 3 changes are made to achieve the adult vessel pattern?

A
  1. Hypertrophy of some (AA 3, 4, 6)
  2. Addition of new vessels
  3. Loss of some vessels
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7
Q

At what spinal level do the dorsal aorta fuse and continue caudally?

A

T4

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8
Q

What arteries run between somites and connect with the dorsal aorta?

A

Intersegmental arteries

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9
Q

Cervical intersegmental arteries become?

A

Vertebral arteries

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10
Q

7th Cervical intersegmental artery becomes what on the left?

A

Left subclavian

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11
Q

7th Cervical intersegmental artery becomes what on the right?

A

PORTION of the Right subclavian

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12
Q

Thoracic intersegmental arteries become?

A

Internal thoracics and Intercostals

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13
Q

Lumbar intersegmental arteries become?

A

Epigastric and iliac vessels

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14
Q

AA 1

A

Maxillary A.

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15
Q

AA 2

A

Stapedial A.

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16
Q

AA 3

A

Common carotid, proximal internal carotid and external carotid

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17
Q

AA 4 on the left

A

Part of Aortic Arch

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18
Q

What form the Aortic Arch?

A

Aortic sac
AA 4 on the left
Left dorsal aorta

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19
Q

AA 4 on the right

A

Proximal right subclavian A.

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20
Q

AA 5

A

NEVER REALLY FORMS

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21
Q

AA 6

Study These Flashcards
A

Pulmonary arteries

22
Q

On the left side, what is retained from AA 6 and affects recurrent laryngeal nerve path?

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A 
Ductus arteriosus (ligamentum arteriosum)
- Left recurrent laryngeal nerve loops around it
23
Q

On the right side, what happens to AA 6 and how does that affect the recurrent laryngeal nerve path?

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A

Distal part regresses away from dorsal aorta and so the right recurrent laryngeal nerve loops around the right subclavian

24
Q

What happens to the portion of the dorsal aortas between AA 3 and 4?

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A

= carotid duct == obliterated

25
The right dorsal aorta ____ from 7th intersegmental A. to junction with left dorsal aorta
Disappears
26
Supplies yolk sac and eventually becomes GI vasculature
Vitelline arteries
27
Paired ventral branches of dorsal aorta that go to placenta and bladder
Umbilical arteries
28
Oxygen rich blood bypasses the liver and enters?
IVC and Right atrium
29
Where does a majority of the blood go once its in the right atrium?
Through the foramen ovale to get to the left atrium
30
Left atrial blood goes to the left ventricle and then on to the ascending aorta to reach?
Arteries of heart, head, neck, upper limbs
31
What is special about the blood that reaches the arteries of the heart, head, neck, and upper limbs?
It has the HIGHEST Oxygen content!
32
Where does some of the blood go once its in the right atrium?
Right ventricle
33
If blood enters the right ventricle, where does 90% go from there?
To pulmonary trunk -- Ductus arteriosus -- Descending aorta (bypasses lungs)
34
Approximately how much blood goes into the lungs?
10%
35
Ductus arteriosus connects?
Pulmonary trunk with descending aorta to bypass the lungs
36
Most of the blood in the SVC goes to the?
Right ventricle
37
Vitelline veins form what in the liver primordia?
Hepatic sinusoids
38
The right vitelline vein forms?
Right hepatocardiac channel that becomes the inferior IVC
39
Umbilical veins pass on either side of the?
Liver
40
Do umbilical veins connect to hepatic sinusoids?
Yes
41
Which umbilical vein ends up being the only one to carry blood to the liver?
Left umbilical vein
42
What does the ductus venosus connect?
Left umbilical vein and the right hepatocardiac channel
43
What drain the body of the embryo?
Cardinal veins
44
Anastomosis between what form the left brachiocephalic vein?
Right anterior cardinal vein and the Left anterior cardinal vein
45
When is a common cardinal vein formed?
When the anterior and posterior cardinal veins join
46
What forms the SVC?
Right common cardinal vein
47
What does the left cardinal vein form?
Coronary sinus
48
Proximal right subclavian A is formed from?
AA 4 on the right
49
Distal right subclavian A is formed from?
7th Cervical Intersegmental A.
50
What are the 3 main veins in the venous system during development?
Vitelline Umbilical Common Cardinal

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