Term
| What two shunts develop remain open during embryonic life but close during the neonatal period? |
|
Definition
| forman ovale and ductus arteriosus |
|
|
Term
| During heart tube formation do cardiac precursor cells go to the crainial aspect of the embryo |
|
Definition
|
|
Term
| where do cardiac precurosr cells arise from |
|
Definition
|
|
Term
| how do cardiac myoblasts form? |
|
Definition
| cardiac precursor cells become situated in the splanchnic mesoderm. the endoderm induces these cells to form cardiac myoblasts |
|
|
Term
| Other than cardiac precursor cells, what two other things contribute to formatin of the heart |
|
Definition
| coelomic epithelium (myocardium and conducting system) and neural crest (septa and media of great vessels) |
|
|
Term
| What forms around the same time as cardiac myoblasts |
|
Definition
| blood islands form nearby |
|
|
Term
| what goes around the blood islands |
|
Definition
|
|
Term
| What is the cardiogenic field |
|
Definition
| when cardiac cells surround the blood islands and form a horseshoe shaped tube |
|
|
Term
| What day are two laterally situated tubes present |
|
Definition
|
|
Term
| When and from what do dorsal aorta form? |
|
Definition
| Day 19 from blood islands |
|
|
Term
| The cardiogenic area is at first VENTRAL to the buccopharyngeal membrane |
|
Definition
|
|
Term
| how get from two laterally siutated tubes to a heart tube? |
|
Definition
| you fold the embroyo so the horseshoe shaped tube comes together ventrally where to fuses except at the caudal most end |
|
|
Term
| What holds heart tube initially right after folding? |
|
Definition
| dorsal mesentary suspends the herat tube |
|
|
Term
| What forms when the dorsal mesentary breaks down (the layer suspenidng the heart) |
|
Definition
| transverse pericardial sinus |
|
|
Term
| describe where heart tube receives blood and expels blood |
|
Definition
| receives blood from CAUDAL end and expels blood from ROSTRAL end |
|
|
Term
| Name two layers of the heart tube |
|
Definition
1. endothelium
2. mesoderm |
|
|
Term
| How go from two layers to 3 layers |
|
Definition
1. endothelium
2.mesoderm --->mesoderm and cardiac jelly
3. splanichic mesoderm--->epicardium |
|
|
Term
|
Definition
|
|
Term
| mesoderm develops into what 2 layers |
|
Definition
| myocardium and cardiac jelly |
|
|
Term
| Heart tube name order of atrium ventricle sinus venosus and bulbus cordis from top to bottom |
|
Definition
1. bulbus cordis
2. ventricle
3. atrium
side is sinus venosus |
|
|
Term
| What does bulbus cordis give rise to |
|
Definition
think of CC (bulb cord body) is a TA
1. truncus arteriosus
2. conus cordis
3. trabeculated part of right ventricle |
|
|
Term
| When does heart tube form a loop? |
|
Definition
|
|
Term
| In heart tube does ventricule move left or irght? |
|
Definition
| moves left and inferioraly |
|
|
Term
| What moves anterioraly and posterior in heart loop? |
|
Definition
ventricle moves anterially
atrium moves posterially |
|
|
Term
| Once the loop forms what does concus cordis turn into and what does truncus arteriosus become |
|
Definition
middle 1/3 of conus cordis will form the outflow tracts of blot hventricles.
the distal 1/3 of TRUNCUS ARTERIOSUS will form the roots and proimal portions of hte aorta and poumonary artery |
|
|
Term
| Name 3 veins the sinus venosus receives blood from |
|
Definition
1. vitelline
2. umbilican
3. common cardinal |
|
|
Term
| Describe the great venous shift during 5th week of development |
|
Definition
right umblicla vein and left vitelline vein is obliterated and evenutally the left common cardinal vein
ALL THAT REMINS of the left sinus horn is the OBLIQUE VEIN of hte LA and the coonary sinus |
|
|
Term
| Again, what is reamined during great venous shift |
|
Definition
the olique vein of the left sinus horn in left atrium and hte coronary sinus
The right sinus horn enlarges and goes into right atrium which results tinto the valve of IVC and valve of coronary sinus |
|
|
Term
| What forms wwhe nthe right sinus horn goes into the right atrium |
|
Definition
| valve of IVC and coronary sinus |
|
|
Term
| what are endocardial cushions |
|
Definition
| thickeninigs of the sub endocardium and form atrial and ventricular walls, AV canals and valves and aortic and pulmonary channels |
|
|
Term
| what forms endocardial cushions in the bulbous cordis |
|
Definition
|
|
Term
| do nerual crests cells make endocardial cushions between atria and ventricle? |
|
Definition
|
|
Term
|
Definition
in end of 4th week
here, a shet grows downward from the roof of the common atrium |
|
|
Term
|
Definition
|
|
Term
|
Definition
| before closure of ostium primum there are performatoins in the UPPER portion of the septum primum |
|
|
Term
|
Definition
covers the whole in the septum primum
and the deficit portion is called the forman ovule |
|
|
Term
| oval foramen allows blood to pass from RV into LV |
|
Definition
| NOOO!! its right ATRUM into left ATRIUM |
|
|
Term
| does oval foramen ever close? |
|
Definition
|
|
Term
| Describe the smooth walled part of right atrium |
|
Definition
| smooth walled part is derived from the sinus venosus |
|
|
Term
| describe the smooth walled part of left atrium |
|
Definition
|
|
Term
| what forms most of the right venetricle |
|
Definition
|
|
Term
| what give srise to the distal portions of both ventricles |
|
Definition
|
|
Term
| what do the medial walls of each ventricle form |
|
Definition
| muscular interventricular septum |
|
|
Term
| describe this spiraling techinqiue |
|
Definition
| ridges form in bot hthe truncus arteriorus and conus cordis and these swellings spiral around eachother and FORM a challel that dives the challe into an AORITC end and PULMONARY CHANNEL |
|
|
Term
| What is persistent in atrial septal defects |
|
Definition
|
|
Term
| what defect invovles a defect in sinus venosum |
|
Definition
|
|
Term
| what is worse in the ventricular septal defect- the muscular part ?? |
|
Definition
|
|
Term
| The valve of the IVC functions how? |
|
Definition
| directs blood from placenta to inferior vena cave |
|
|
Term
| After birth what becomes of the left umblical vein |
|
Definition
|
|
Term
| What do arteries veins and lymphatic channels form from? |
|
Definition
|
|
Term
| when do extraembryonic vessels form? |
|
Definition
| in 3rd week of development |
|
|
Term
| embryonic when do embrynoic vessels form |
|
Definition
| shortly after extraembroyinic vessels (remember those foremed 3rd week from yolk sac) |
|
|
Term
| Where do embryonic vessels from? |
|
Definition
| at the endoderm mesoderm junction |
|
|
Term
| Name where blood cells form from |
|
Definition
initially from yolk sac
later in liver
later in in spleen, thymus and bone marrow |
|
|
Term
| when do pharyngeal arches form |
|
Definition
| 4th and 5th weeks of development |
|
|
Term
| true or false: pharyngeal arches form at the caudal end (tail) |
|
Definition
| FALSE! form at cranial end |
|
|
Term
| what forms at the cranial end at the 4th and 5th week of development? |
|
Definition
|
|
Term
| where are arterial arches? |
|
Definition
| in mesenchyme and pass dorsally to enter the dorsal aorta |
|
|
Term
| arterial arches in endoderm? |
|
Definition
|
|
Term
| the dorsal aorta joins WHAT at the caudal end of the embryo |
|
Definition
| umbilica veins (remember pic with aorta and at end 2 things coing out of it) |
|
|
Term
|
Definition
1,2,3,4, 6
1- maxilarry
2- stapedial
3- common carotid and internal carotid
4- L= aortic arch R= subclavian artery
6-R pulmonary LEFT- left pulmonary AND DUCTUS ARTEROSUS |
|
|
Term
|
Definition
| it connects the 3rd and 4th arches (3= common carotid and internal carotid; 4=R subclavian and left part is aortic arch) |
|
|
Term
| Does the carotid duct dissapear? |
|
Definition
|
|
Term
| Does the left dorsal aorta disappear? |
|
Definition
| no the IRGHT dorsal aorta |
|
|
Term
| which arteries elongate during aortic arch system changes |
|
Definition
| carotid and brachiocephalic (note in pic first stub is BC trunk second is CC, third is left subclavian) |
|
|
Term
| what supplies the 6th arch |
|
Definition
| recurrent laryngeal nerves |
|
|
Term
| whats in the 5th arch of aortic arch |
|
Definition
| does not exist. only have 1,2,3,4, and 6 |
|
|
Term
| vitelline arteries come from? |
|
Definition
| abdominal aorta and supply yolk sac |
|
|
Term
| vitalline arteries supply what two areas? |
|
Definition
|
|
Term
| vitelline arteries in thoracic supply what? |
|
Definition
|
|
Term
| vitelline arteries in abdomen supply what? |
|
Definition
specific portions of GI tract
1. celiac
2. superior
3. inferior mesenteric |
|
|
Term
| name part of vitelline that suppplies forgut |
|
Definition
|
|
Term
| name vitelline artery that supplies the midgut |
|
Definition
|
|
Term
| name part of vitelline that supplies the hindgut |
|
Definition
|
|
Term
| Name 5 parts of the arterial system |
|
Definition
1. aortic arches (1,2,3,4,6)
2.vitalline arteries (thoracic, abodomen-celiac, superior and inf mesenteric
3. arteries not associated with GI tract
4. arteries connected to the lateral side of aorta
5. umbilical arteries |
|
|
Term
| Describe arteries NOT assoicated with teh GI tract |
|
Definition
| paired vessels that are connected to dorsal aspect of aorrta and supply body wall |
|
|
Term
| "arteries not associated with GI tract" attach to aortic arch |
|
Definition
| NO attach to DORSAL aspect of aorta |
|
|
Term
| 3 things arteries connected to lateral side of aorta do |
|
Definition
1. middle suprarenal
2. renal
3. gonadal (think LATERAL- "later al gootta pee" |
|
|
Term
| vitelline arteries supply the allantois |
|
Definition
| NO UMBILICAL arteries supply the allantois, VITELLINE supply the YOLK sac (thorac and ab) {think umber and alli and v LOOKS like Y} |
|
|
Term
| WHAT DO UMBILICAL ARTERIES SUPPLY |
|
Definition
| allantois and course to the PLACENTA |
|
|
Term
| when do vitalline arteries shift to the common iliac |
|
Definition
| 4th week of develoopment {think v, Y, and vY common) |
|
|
Term
| what do umbilical arteries becomon when obliterated afterbirht |
|
Definition
| medial umbilcal ligaments |
|
|
Term
| what is dysphagia lusoria |
|
Definition
| subclavian is behind esophagus |
|
|
Term
| Name 3 VEINS systems thats observed in 5th week |
|
Definition
1. vitelline
2. umbilical
3. cardinal |
|
|
Term
| vitelline veins carry blood from yolk sac to what |
|
Definition
| sinus venosus (remember vit arteries from AB to ylk sac, thoracic and ab- celiac, mesneteric) |
|
|
Term
| umblilcal veins carry deoxygenated blood? |
|
Definition
| NO carries OXYGENATED bloood from placenta to embryo (remember artereis TO placenta) |
|
|
Term
| cardinal veins drain blood to the bottom of heart |
|
Definition
| no RIGHT side of heart. bids, HEART, RIGHT |
|
|
Term
| what do vitelline veins enter and what does it form before entering? |
|
Definition
| enter SINUS VENOSUS and before it forms a plexus around the duodenum then trhough spetum transversum |
|
|
Term
| again vitelline vein pathway |
|
Definition
| duodenum plexus out of septum transversum TO sinus venosus (mnomic VV is a dude out of the sept trans to STUFFY) |
|
|
Term
| how do hepatic sinusoids form? |
|
Definition
| from vitelline when they interuppt GI tract |
|
|
Term
| how make blood go from LEFT vitelline vein to RIGHT |
|
Definition
| from reuction of LEFT sinus horn |
|
|
Term
| what forms around duodenum |
|
Definition
|
|
Term
| superior mesenteric vein comes from LEFT viteline vein?? |
|
Definition
| NOOOOO RIGHT viteline vein |
|
|
Term
| name 7 veins from vitelline veins |
|
Definition
1. small region of IVC
2. portal vein (remember around duodenum)<talked about
3. ductus venosus<V and Vit
4. hepatic <V HE SPLE
5. superior and inferior mesenteric<--duh
7. splenic
|
|
|
Term
| which part of vitelline vein makes superior mesneteric vein |
|
Definition
|
|
Term
| which part ofvitelline veins on left stay connected to sinus venosus |
|
Definition
| no left so LEAVE so LOOSE the direct connection |
|
|
Term
| whats more in vitalline or umbilical |
|
Definition
|
|
Term
| what organs around umbilical veins |
|
Definition
| pass on either side of liver |
|
|
Term
| umbilical veins drain what? |
|
Definition
| drain the allantois (remember artries supply allantois) |
|
|
Term
| what part of umbilcal vein disapaeras and what does this result in? |
|
Definition
| proximal portions of both R and L umbilical veins disappear. reusults in blood going to liver, not straight to heart |
|
|
Term
| what is the connection between the left UMBILICAL and RIGHT vitalline |
|
Definition
|
|
Term
| 7 channels of cardinal veins |
|
Definition
1. R and L arterior cardinal
2. R and L posterior cardinal
3. subcardinal veins (kidney)
4. sacrocardinal (lowerexrem)
5. supracardinal (bodywall)( think A P TOP bottom, sacre) |
|
|
Term
| what veins drain the kidnesy |
|
Definition
|
|
Term
| what drains the lower extremities |
|
Definition
|
|
Term
| what drains the body wall |
|
Definition
|
|
Term
| an anastoos of ANTERIOR cardinal vein forms subclavianTRUE OR FALSE |
|
Definition
| NOOO forms BRACHIOCEPHALIC!! (think ACfor BC) |
|
|
Term
| do posteior cardinal veins anastomose? |
|
Definition
| no the anterior cardinal veins do |
|
|
Term
| what results when anterior cardinal veins form brachiocephalic vein? |
|
Definition
| much of blood from head is shunted to right side before going to heart |
|
|
Term
| after anterior cardinal veins anastomose, what happens to left anterior cardinal vein remnats |
|
Definition
| they contribute to the coronary sinus (remember coronary sinus and small left supeior intercostal vein |
|
|
Term
| what forms a significant portion of the inferior vena cava |
|
Definition
| the right subcardinal vein |
|
|
Term
| what forms the superior vena cava |
|
Definition
| right common cardinal vein and prox part of right anterior cardinal vein |
|
|
Term
| true or false right common cardinal vein forms inferior vena cava |
|
Definition
NOOOOO right COMMON forms SUPERIOR vena cava
right SUBcardinal forms INferior vena cava |
|
|
Term
| name 3 cardinal veins that anastomose |
|
Definition
1. anteior cardinal (remember helps with BCvein)
2. anastomsosi between sacrocardinal veins (forms left common iliac)
3. subcardinal veins anastomose (form left renal vein) |
|
|
Term
1ANTERIOR cardinal-
2R COMMON cardinal vein
3R ANTERIOR cardinal vein-
4R SUBcardianl vein AND R sacrocardinal vein-
5left anterior cardinal vein
6sacrocardinal
7posteior cardinal veins |
|
Definition
1. forms BC vein (ac bc)
2 and 3. common and r ante--> superior vena cava (commonrant for supper)
4. inferior vena cava (sub rascal inferior)
5. lef anterior cardinal-->coronary sinus and superior intercostal
6. left common iliac
7. kidney draining and to arch of azgos vein and left supeior intercostal vein (post the kidney) |
|
|
Term
| brachiocephalic vein from |
|
Definition
|
|
Term
| do left subcardinal veins disapear after form left renal vein |
|
Definition
| yes except for left gonadalvein |
|
|
Term
| when do lymph veslles form |
|
Definition
|
|
