Development of the Great Vessels Flashcards
For how long do the great vessels develop
From the first month to the first breath for arteries
Vessels are from the fetal to neonatal time
other name for Aortic arch
Pharyngeal arch arteries
Branchial (gill) arch arteries
when does the arterial system develop at the same time as
With the rest of the body vessels
what do aortic arch artiers come from
The aortic sac
where do aortic arch artiers terminate
In the right and left dorsal aorta
when do aortic arch arteries appear
In a cranial to caudal sequence and not all at the same time
what aortic arch does not contribute to anything
5
1 arch vessels becomes what right and left
Both Regress to form the maxillary artery
2nd arch vesssel become what right and left
Regress to form stapedial and hyoid aa
3rd arch arteries become what right and left
L/R common Carotid, internal carotid, and external carotid aa
4th arch arteries become what right and left
R: PArt of the right subclavian a
L: part of the aortic arch
6th arch artiers become what right and left
R: R pulmonary Artery
L: L pulmonary A & Ductus arteriosus
7th segmental artery becomes what left and right
R: PArt of Right subclavian A
L: L subclavian A
What does the Dorsal aorta become Right and Left
R: regress as part of the right subclavian A
L: Descending thoracic aorta
what does the Aortic Sac become Right and Left
L: Brachiocephalic trunk
R: Part of Aortic Arch
what aortic arches are bilateral for arteries
1-3
where do Dorsal aorta fuse
at the thoracic level
where is pharyngeal arch number 2
near the developing ear
what aotric arch makes up part ofthe maxillary artery
Remannt of the 1st arch
what aortic arch makes up the stapedial artery
Remnant of the 2nd arch artery
what does aotric arch 3 artery do
moves up cranially in the embryo to form the common carotid arteries
when does remodeling and regression of arteries occure
once they leave the aortic sac and touch the dorsal aorta
How does each aorta arch artery form
Begins to form once the previous artery begins to regress
shunt in the baby for oxygenated blood to avoid lungs
Ductus arteriosus
what does Ductus arteriosus become
Ligamentous arteriosus
where does the dorsal aortae regress
Regresses at the cranial side on the left and almost completely on the right
where does the recurrent laryngeal nerve loop under
Loops under pharyngeal arch artery 6
why does Right recurrent layngeal nerve loop under the right subclavian artery
Because arch 6 is gone
why does the left recurrent laryngeal nerve loop under the arotic arch
Because arch 6 is mostly maintained
arteries that begin in the yolk sac and go into the embryo
Vitelline artery
what do Vitelline arteries become
Celiac trunk
superior mesenteric artery
travel of the umbrilical artery
travel from the embryo to the placenta
what does the umbilical artery form
Inferior mesenteric artery
common iliac artery
Proximal portion: Internal iliac artery and superior vesical artery
Distal portion: medial umbilical ligaments
Inersegmental arteries form what
Intercostal arteries
Lumbar arteries
what are coronary arteries derived from
Epicardium
How are coronary arteries connected to the aorta
formed by the ingrowth of arterial endothelial cells to invade the aorta
Pairs of major veins of Embryonic
Vitelline veins
Cardinal veins
Umbilical veins
what do Vitelline veins drain
Drain the GI tract and gut derivatives
what do Vitelline veins drain into
Sinus spinosis
what do Umbilical veins carry
Oxygenated blood from placentra to embryo
where do Umbilical veins drain
Into sinus spinosum
what do Umbilical veins become in the adult
are non-functional
what does the carinal veins drain
Drain head, neck, and body wal
what do Cardinal veins drain into
Common cardinals to sinus spinosis
what is the cardinal system remodeled to do
Drain blood from head, neck, and body
What is the Vitelline system remodeled to drain
The GI tract and derivatives
What is the Umbilical system remodeled to become
Carry osygenated blood from mother, but will not contribute to the adult venous system
what is the Lymphatic system made of in the embryo
Sacs (6): Jugular (2) Iliac (2) Retroperitoneal (1) Cisterna chyli (1)
what connects the lymphatic sacs
Lymphatic vessels
what do Lymphatic vessels pass along
Main veins
what Lymphatic vessel Regresses
The left Lymphatic duct except for the most cranial protion taht goes up into the angle
why does the body get drainage from the left side lymph nodes mostly at the angle
The right thoracic duct crosses over to the left side
