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CVS Embryology

Beschreibung

1MB MD121 Embryology Study Quiz 2018 (up to IV septum formation)
Emer Lyons
Quiz von Emer Lyons, aktualisiert more than 1 year ago
Emer Lyons
Erstellt von Emer Lyons vor etwa 6 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
The Cardiovascular System is the second major system to function in the embryo
Antworten
  • True
  • False

Frage 2

Frage
In the early development of the cardiovascular system:
Antworten
  • Paired angioblastic cords appear in the mesoderm
  • The heart develops from the foregut
  • The heart begins to beat at day 22
  • The primitive CVS begins to appear in the second week of development
  • The pharyngeal arches are the first structure to appear

Frage 3

Frage
The Venous ends of the heart are fixed by
Antworten
  • The septum transversum
  • The pharyngeal arches
  • The bulboventricular loop
  • The sinus venosis

Frage 4

Frage
The arterial ends of the heart are fixed by
Antworten
  • The septum transversum
  • The pharyngeal arches
  • The truncus arteriosus
  • The bulbus cordis

Frage 5

Frage
Label the following section of the heart tube
Image:
Early Heart Tube (binary/octet-stream)
Antworten
  • Bulbus cordis

Frage 6

Frage
Label the following section of the heart tube
Image:
Early Heart Tube (binary/octet-stream)
Antworten
  • Sinus venosus

Frage 7

Frage
Label the following section of the heart tube
Image:
Early Heart Tube (binary/octet-stream)
Antworten
  • Atrium

Frage 8

Frage
Label the following section of the heart tube
Image:
Early Heart Tube (binary/octet-stream)
Antworten
  • Truncus arteriosus

Frage 9

Frage
Label the following section of the heart tube
Image:
Early Heart Tube (binary/octet-stream)
Antworten
  • Ventricle

Frage 10

Frage
The Bulbus Cordis and the Ventricle grow and bend to become
Antworten
  • The Bulboventricular loop
  • The Pharyngeal Arches
  • The Septum Transversum
  • The Aortic Sac

Frage 11

Frage
The Vitelline Veins
Antworten
  • return low O2 blood from the yolk sac
  • carry blood from the chorion to the embryo
  • drain poor o2 blood from the embryo
  • drain the amniotic cavity

Frage 12

Frage
While there is originally both a right and left umbilical vein, only the right persists
Antworten
  • True
  • False

Frage 13

Frage
The Common Cardinal veins
Antworten
  • drain poor O2 blood from the body of the embryo
  • return low O2 blood from the yolk sac
  • carry blood from the chorion to the embryo
  • drain the amniotic cavity

Frage 14

Frage
The Umbilical Veins
Antworten
  • carry blood from the chorion to the embryo
  • return low O2 blood from the yolk sac
  • drain poor O2 blood from the body of the embryo
  • drain the amniotic cavity

Frage 15

Frage
Label the following embryonic veins
Image:
Early Development Veins (binary/octet-stream)
Antworten
  • Cardinal veins

Frage 16

Frage
Label the following embryonic vein
Image:
Early Development Veins (binary/octet-stream)
Antworten
  • Umbilical vein

Frage 17

Frage
Label (specifically) the following embryonic vein
Image:
Early Development Veins (binary/octet-stream)
Antworten
  • Left Vitelline vein

Frage 18

Frage
The primordial myocardium forms from [blank_start]splanchnic mesoderm[blank_end]
Antworten
  • splanchnic mesoderm

Frage 19

Frage
During lateral folding, the 2 heart tubes fuse to form one cranio-caudally
Antworten
  • True
  • False

Frage 20

Frage
As the primitive heart bends:
Antworten
  • The two horns of the sinus venosus fuse
  • The atrium and sinus venosus end up behind the bulbus cordis, truncus arteriosus and ventricle.
  • The heart gradually invaginates the pericardial cavity

Frage 21

Frage
Partitions of the heart develop around week [blank_start]4[blank_end] and are essentially finished by the end of week [blank_start]5[blank_end]
Antworten
  • 4
  • 5

Frage 22

Frage
The Aorta is formed from the coalescence of:
Antworten
  • The Umbilical Arteries
  • The Embryonic Arteries
  • The Atrioventricular Arteries

Frage 23

Frage
Aortic Arches are:
Antworten
  • Not all are present simultaneously
  • All permanent structures
  • Profoundly different to the Pharyngeal Arch arteries

Frage 24

Frage
The 4th Aortic Arch becomes the Arch of the Aorta on the right and the Subclavian Artery on the left
Antworten
  • True
  • False

Frage 25

Frage
The 3rd Aortic Arch gives rise to:
Antworten
  • Common Carotid
  • Proximal Internal Carotid
  • External branches of the 3rd arch
  • Pulmonary trunk
  • Right subclavian artery

Frage 26

Frage
Which of the following Aortic Arches disappear?
Antworten
  • 1st
  • 2nd
  • 3rd
  • 4th
  • 5th
  • 6th

Frage 27

Frage
The 6th Aortic Arch gives rise to:
Antworten
  • Arch of the Aorta and Pulmonary Trunk
  • Pulmonary Trunk and Ductus Arteriosus
  • Brachiocephalic Artery and Arch of the Aorta
  • Internal and External Carotid Arteries
  • Pulmonary and Left Subclavian Veins

Frage 28

Frage
Fusion of the outflow tract cushions results in separation of the blood flow
Antworten
  • True
  • False

Frage 29

Frage
The truncus arteriosus divides to form the [blank_start]Aorta[blank_end] and the [blank_start]Pulmonary[blank_end] Trunk
Antworten
  • Aorta
  • Pulmonary

Frage 30

Frage
In right atrial septum formation:
Antworten
  • Some of the wall is formed from the sinus venosus
  • The Atrium decreases in size
  • The entrance of the sinus venosus is shifted over to the right

Frage 31

Frage
During septum formation, for a brief period the left atrium has no venous inflow
Antworten
  • True
  • False

Frage 32

Frage
The pulmonary veins bud from the [blank_start]left atrium[blank_end]
Antworten
  • left atrium

Frage 33

Frage
Atrial Septation is complete at week 8
Antworten
  • True
  • False

Frage 34

Frage
The Septum Primum:
Antworten
  • is incomplete
  • is sickle shaped
  • gives rise to the ostium primum
  • gives rise to the ostium secondum
  • grows from the roof of the atrium into the lumen

Frage 35

Frage
The Septum Secundum:
Antworten
  • Fuses with the Endocardial Cushions
  • Grows from the interventricular septum
  • Gives rise to the foramen ovale at its lower free edge

Frage 36

Frage
In pre-natal development, blood flows from right to left through the interatrial septum
Antworten
  • True
  • False

Frage 37

Frage
In Atrial Septal Defects, Left-to-right shunting of blood:
Antworten
  • May be asymptomatic
  • Presents with an ejection systolic murmur
  • Causes raised O2 saturation in the right atrium

Frage 38

Frage
Ostium Primum defects cause 70% of ASDs
Antworten
  • True
  • False

Frage 39

Frage
Select the correct statements about Ostium Secundum defects:
Antworten
  • They occur in the region of fossa ovalis
  • They can be caused by underdevelopment of the septum secundum
  • They can be caused by excessive resorption of the septum primum

Frage 40

Frage
The [blank_start]Common Atrium[blank_end] condition is caused by the absence of the [blank_start]septum primum[blank_end] and septum secondum.
Antworten
  • Common Atrium
  • Left-to-right shunting of blood
  • septum primum
  • septum secondum
  • fossa ovalis
  • ostium secundum

Frage 41

Frage
The muscular portion of the Interventricular septum:
Antworten
  • is formed by the medial walls of the expanding ventricles
  • makes up about 10% of the septum
  • has a foramen close to the inferior border

Frage 42

Frage
Tissue from the [blank_start]inferior endocardial cushion[blank_end] close the interventricular foramen, and making up the [blank_start]membranous[blank_end] part of the septum.
Antworten
  • inferior endocardial cushion
  • lateral walls of the ventricles
  • membranous
  • muscular
  • tendonous

Frage 43

Frage
Select the correct statements regarding Ventricular septal defects:
Antworten
  • Spontaneous closure may occur before 2 years of age
  • 2 main forms exist: Membranous and Valvular
  • Left-to-right shunting of blood does not occur
  • Muscular VSDs are less common in adults than in children
  • VSDs may present with a pansystolic murmur

Frage 44

Frage
In healthy foetal circulation, Left-to-right shunting of blood does not occur
Antworten
  • True
  • False

Frage 45

Frage
The closure of the atrial septum is due to anatomical changes
Antworten
  • True
  • False

Frage 46

Frage
Select the INCORRECT statements regarding the closure of the atrial septum:
Antworten
  • High pulmonary peripheral vascular resistance and arterial pressures cause right to left shunting pre-natally
  • Pulmonary peripheral vascular resistance and pulmonary arterial pressures drop post-natal
  • Pre-natal lungs are deflated
  • Pressure gradient post- natal is LA<RA
  • There is no post-natal evidence of the pre-natal foramen

Frage 47

Frage
Which of the following are symptoms of Patent Ductus Arteriosus?
Antworten
  • Pulmonary Hypertension
  • Right Atrium Hypertension
  • Murmur in both Diastole and Systole
  • Post-natal blood flow from left to right
  • Parasystolic murmur

Frage 48

Frage
Bradykinin release causes smooth muscle contraction with results in opening of the ductus arteriosus
Antworten
  • True
  • False

Frage 49

Frage
Upon anatomical closure, the Ductus Arteriosus becomes the [blank_start]Ligamentum Arteriosum[blank_end]
Antworten
  • Ligamentum Arteriosum

Frage 50

Frage
Which of the following is not associated with the Tetralogy of Fallout?
Antworten
  • Unequal division of conus cordis
  • Pulmonary Stenosis
  • Dual murmur in Systole and Diastole
  • Large VSD
  • Overriding Aorta
  • Hypertrophy of the right ventricle
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