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z Devo -- Cardio 1
David Harrington
150
Other
Professional
12/10/2009

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Term
first major system to function
Definition
cardiovascular
Term
first parts of cardio system appear when? as what?
Definition
mid week 3; angioblastic cords
Term
angioblastic cords canalize to form
Definition
paired endocardial heart tubes
Term
earliest heartbeats when?
Definition
week 4
Term
myocardium is derived from (tissue)
Definition
splanchnic mesoderm
Term
_ _ separates endocardium and myocardium. what kind of tissue is it?
Definition
cardiac jelly. acellular CT
Term
blood flows through primative heart in this order (6)
Definition
sinus venosus
atrium
ventricle
bulbus cordis
truncus arteriosus
aortic sac & arches
Term
cranial and caudal ends of the heart are fixed by ~ and ~. therefore growth of the heart tube causes ~
Definition
pharyngeal arches
septum transversum
looping to the right
Term
the looping to the right happens, and (3) structures are placed anteriorly and 2 structures posteriorly
Definition
ventricle
bulbus cordis
truncus arteriosus

sinus venosus
atrium
Term
the cranial portion of intraembryonic coelom is the early _ _
Definition
pericardial cavity
Term
heart is suspended in the pericardial cavity by
Definition
mesocardium
Term
disappearance of mesocardium creates communication between right and left sides of pericardial cavity known as
Definition
transverse pericardial sinus
Term
4 genes of cardiac devo
Definition
Shh, activin, e-Hand, d-Hand
Term
cardiac gene devo summary steps
Definition
initially Shh is bilaterally expressed

activin expressed on R side --> represses Shh on that side

eventually tcr factors e-Hand and d-Hand are expressed on L and R respectively
Term
atrioventricular canals arise because of fusion of _ _
Definition
endocardial cushions (diagram p. 126)
Term
endocardial cusions fuse and thus create...
Definition
R & L atrioventricular canals
Term
atrium becomes divided first by
Definition
septum primum
Term
septum primum grows and closes _ _, and fuses with _ _
Definition
foramen primum; endocardial cushions
Term
before septum primum finishes growing, part of it degenerates, forming _ _
Definition
foramen secundum
Term
septum secundum develops where?
Definition
R atrium to R of septum primum
Term
foramen secundum (in septum primum) becomes covered by
Definition
septum secundum
Term
foramen ovale arises because
Definition
septum secundum does not complete closure; it leaves foramen ovale
Term
valve of foramen ovale is provided by...
Definition
septum primum
Term
the valve of the foramen ovale gets displaced because _ atrium is higher pressure. --> _ to _ shunt
Definition
R
R to L
Term
foramen ovale closure occurs when?
Definition
3 months
Term
embryonic atria appear in the adult only as
Definition
auricular appendages
Term
enlarged right sinus venosus is incorporated into _ _ as _ _
Definition
R atrium
sinus venarum
Term
boundary between primitive R atrium and incorporated sinus venosus is _ _ externally and _ _ internally
Definition
sulcus terminalis
crista terminalis
Term
small left sinus venosus becomes _ _ in the adult
Definition
coronary sinus
Term
most heart veins drain into
Definition
coronary sinus
Term
incorporation of _ _ produces most of the smooth adult left atrium
Definition
pulmonary veins
Term
smooth part of adult R atrium is _ _
Definition
sinus venarum
Term
interventricular septum has muscular and membranous portions, derived from
Definition
primitive inverventricular septum
inferior margin of aorticopulmonary septum
Term
initially the primitive interventricular septum doesn't reach the endocardial cushions, and therefore leaves _ _
Definition
interventricular foramen
Term
2 structures that become partitioned into the pulmonary trunk and ascending aorta
Definition
bulbus cordis
truncus arteriosus
Term
aorticopulmonary septum divides ~ & ~ into
Definition
bulbus cordis
truncus arteriosus

pulmonary trunk and ascending aorta
Term
what embryological structure created the division between pulmonary trunk and ascending aorta?
Definition
aorticopulmonary septum
Term
bulbus cordis is incorporated into the adult as ~ & ~
Definition
R ventricle: conus arteriosus
L ventricle: aortic vestible
Term
the smooth outflow portions of ventricles inferior to semilunar valves are called in the R & L
Definition
R conus arteriosus
L aortic vestible
Term
pharyngeal arches each contain an arterial branch from _ _
Definition
aortic sac
Term
R recurrent laryngeal nerve loops around
Definition
R subclavian
Term
L recurrent laryngeal nerve loops around
Definition
aortic arch / ligamentum arteriosum
Term
3rd aortic arch contributes to
Definition
common carotid
internal carotid
Term
4th aortic arch -->
Definition
L: aortic arch
R: R subclavian
Term
vasculogenesis vs. angiogenesis
Definition
vasculogenesis = de novo vessel formation vs. angiogenesis = extension or formation of vessels based on pre-existing vessels
Term
two angiogenesis factors and one angiogenesis signaling molecule
Definition
fibroblastic growth factor
vascular endothelial growth factor

angiopoietin-1
Term
pharyngeal arches each contain an arterial branch from _ _
Definition
aortic sac
Term
R recurrent laryngeal nerve loops around
Definition
R subclavian
Term
L recurrent laryngeal nerve loops around
Definition
aortic arch / ligamentum arteriosum
Term
3rd aortic arch contributes to
Definition
common carotid
internal carotid
Term
4th aortic arch -->
Definition
L: aortic arch
R: R subclavian
Term
6th aortic arch -->
Definition
R & L pulmonary arteries
ductus arteriosus
Term
3 venous systems in embryo
Definition
cardinal
vitelline
umbilical
Term
vitelline venous system is from _ _
Definition
yolk sac
Term
vitelline veins original course in the embryo (3)
Definition
yolk sac --> yolk stalk --> sinus venosus
Term
vitelline veins come to lie between _ & _
Definition
liver & GI
Term
vitelline veins' adult derivatives
Definition
portal system
hepatic sinusoids and veins
part of IVC
Term
which umbilical vein degenerates?
Definition
R
Term
_ umbilical vein becomes _ _ aka _ _ in the adult
Definition
L
ligamentum teres
round ligament
Term
ligamentum venosum in liver comes from
Definition
ductus venosus
Term
liver's ligamentum teres comes from
Definition
L umbilical vein
Term
initially umbilical veins drain into ~~ but then R degenerates and L umbilical vein empties into ~~ --> ~~
Definition
sinus venosus
ductus venosus
inferior vena cava
Term
umbilical blood bypasses the liver by
Definition
ductus venosus
Term
systemic venous system is derived from
Definition
cardinal veins
Term
SVC comes from
Definition
anterior cardinal vein
Term
IVC has 2 broad embryonic sources
Definition
vitelline and cardinal
Term
~~ --> double SVC
Definition
persistence of L anterior and common cardinal veins
Term
jugular lymph sac -->
Definition
cervical and axillary nodes
Term
cisterna chyli lymph node comes from
Definition
cisterna chyli lymph sac
Term
aortic lymph nodes come from
Definition
retroperitoneal lymph sac
Term
iliac lymph sac -->
Definition
iliac & inguinal
Term
the two major adult lymph ducts are
Definition
thoracic duct
right lymphatic duct
Term
3 major embryological original components of lymphatic system
Definition
R lymphatic duct
L lymphatic duct
anastomosis in upper thorax
Term
adult R lymphatic duct is derived from
Definition
cranial portion of right lymphatic duct
Term
thoracic duct is derived from (3)
Definition
caudal portion of right lymphatic duct
anastomosis
cranial portion of L lymphatic duct
Term
palatine tonsil is derived from
Definition
2nd pharyngeal pouch
Term
--> thymus
Definition
3rd pharyngeal pouch
Term
spleen is derived from
Definition
dorsal mesentery of stomach
Term
persistence of lymphatic sac or failure of lymph vessels to connect
Definition
cystic hygroma
Term
umbilical vessels =
Definition
2 arteries
1 vein
Term
blood bypasses the liver by
Definition
ductus venosus
Term
blood from the umbilical vein --> -->
etc.
Definition
umbilical vein; ductus venosus; IVC; R atrium; foramen ovale; L atrium
Term
blood from SVC --> ...
Definition
R atrium --> R ventricle --> pulmonary trunk --> ductus arteriosus --> aorta
Term
blood returns from internal iliac to placenta by
Definition
2 umbilical arteries
Term
fetal aorta contains oxy or deoxy blood?
Definition
both oxy & deoxy
Term
what major event (which causes what effect) causes fetal shunt system to be replaced?
Definition
inflation of the lungs --> drop in pulmonary arterial pressure
Term
fate of umbilical vein
Definition
ligamentum teres
Term
fate of ductus venosus
Definition
ligamentum venosum
Term
foramen ovale closes physiologically when?
Definition
physiologically at birth by valve of foramen ovale being pressed against septum secundum
Term
foramen ovale closes anatomically when?
Definition
3 months
Term
the umbilical arteries close where?
Definition
superior to urinary bladder
Term
ductus arteriosus closes when? becomes?
Definition
beings to close at birth
anatomically closes at 3 months
ligamentum arteriosum
Term
in crisis, _ & _ are capable of resuming their hematopoietic function
Definition
liver & spleen
Term
blood cell development first begins when _ (blood cell precursor cells) arise from ~ & ~
Definition
hemangioblasts
yolk sac
allantois
Term
actual blood cell formation = _ occurs where when?
Definition
hematogenesis
liver
week 5
Term
red bone marrow is established by
Definition
month 5
Term
besides bone marrow, 3 organs in embryo involved in hematogenesis
Definition
liver
spleen
thymus
Term
vasculogenesis vs. angiogenesis
Definition
vasculogenesis = de novo vessel formation vs. angiogenesis = extension or formation of vessels based on pre-existing vessels
Term
two angiogenesis factors and one angiogenesis signaling molecule
Definition
fibroblastic growth factor
vascular endothelial growth factor

angiopoietin-1
Term
pharyngeal arches each contain an arterial branch from _ _
Definition
aortic sac
Term
R recurrent laryngeal nerve loops around
Definition
R subclavian
Term
L recurrent laryngeal nerve loops around
Definition
aortic arch / ligamentum arteriosum
Term
3rd aortic arch contributes to
Definition
common carotid
internal carotid
Term
4th aortic arch -->
Definition
L: aortic arch
R: R subclavian
Term
6th aortic arch -->
Definition
R & L pulmonary arteries
ductus arteriosus
Term
3 venous systems in embryo
Definition
cardinal
vitelline
umbilical
Term
vitelline venous system is from _ _
Definition
yolk sac
Term
vitelline veins original course in the embryo (3)
Definition
yolk sac --> yolk stalk --> sinus venosus
Term
vitelline veins come to lie between _ & _
Definition
liver & GI
Term
vitelline veins' adult derivatives
Definition
portal system
hepatic sinusoids and veins
part of IVC
Term
which umbilical vein degenerates?
Definition
R
Term
_ umbilical vein becomes _ _ aka _ _ in the adult
Definition
L
ligamentum teres
round ligament
Term
ligamentum venosum in liver comes from
Definition
ductus venosus
Term
liver's ligamentum teres comes from
Definition
L umbilical vein
Term
initially umbilical veins drain into ~~ but then R degenerates and L umbilical vein empties into ~~ --> ~~
Definition
sinus venosus
ductus venosus
inferior vena cava
Term
umbilical blood bypasses the liver by
Definition
ductus venosus
Term
systemic venous system is derived from
Definition
cardinal veins
Term
SVC comes from
Definition
anterior cardinal vein
Term
IVC has 2 broad embryonic sources
Definition
vitelline and cardinal
Term
~~ --> double SVC
Definition
persistence of L anterior and common cardinal veins
Term
jugular lymph sac -->
Definition
cervical and axillary nodes
Term
cisterna chyli lymph node comes from
Definition
cisterna chyli lymph sac
Term
aortic lymph nodes come from
Definition
retroperitoneal lymph sac
Term
iliac lymph sac -->
Definition
iliac & inguinal
Term
the two major adult lymph ducts are
Definition
thoracic duct
right lymphatic duct
Term
3 major embryological original components of lymphatic system
Definition
R lymphatic duct
L lymphatic duct
anastomosis in upper thorax
Term
adult R lymphatic duct is derived from
Definition
cranial portion of right lymphatic duct
Term
thoracic duct is derived from (3)
Definition
caudal portion of right lymphatic duct
anastomosis
cranial portion of L lymphatic duct
Term
palatine tonsil is derived from
Definition
2nd pharyngeal pouch
Term
--> thymus
Definition
3rd pharyngeal pouch
Term
spleen is derived from
Definition
dorsal mesentery of stomach
Term
persistence of lymphatic sac or failure of lymph vessels to connect
Definition
cystic hygroma
Term
umbilical vessels =
Definition
2 arteries
1 vein
Term
blood bypasses the liver by
Definition
ductus venosus
Term
blood from the umbilical vein --> -->
etc.
Definition
umbilical vein; ductus venosus; IVC; R atrium; foramen ovale; L atrium
Term
blood from SVC --> ...
Definition
R atrium --> R ventricle --> pulmonary trunk --> ductus arteriosus --> aorta
Term
blood returns from internal iliac to placenta by
Definition
2 umbilical arteries
Term
fetal aorta contains oxy or deoxy blood?
Definition
both oxy & deoxy
Term
what major event (which causes what effect) causes fetal shunt system to be replaced?
Definition
inflation of the lungs --> drop in pulmonary arterial pressure
Term
fate of umbilical vein
Definition
ligamentum teres
Term
fate of ductus venosus
Definition
ligamentum venosum
Term
foramen ovale closes physiologically when?
Definition
physiologically at birth by valve of foramen ovale being pressed against septum secundum
Term
foramen ovale closes anatomically when?
Definition
3 months
Term
the umbilical arteries close where?
Definition
superior to urinary bladder
Term
ductus arteriosus closes when? becomes?
Definition
beings to close at birth
anatomically closes at 3 months
ligamentum arteriosum
Term
in crisis, _ & _ are capable of resuming their hematopoietic function
Definition
liver & spleen
Term
blood cell development first begins when _ (blood cell precursor cells) arise from ~ & ~
Definition
hemangioblasts
yolk sac
allantois
Term
actual blood cell formation = _ occurs where when?
Definition
hematogenesis
liver
week 5
Term
red bone marrow is established by
Definition
month 5
Term
besides bone marrow, 3 organs in embryo involved in hematogenesis
Definition
liver
spleen
thymus
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