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CVS Embryology

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1MB MD121 Embryology Study Quiz 2018 (up to IV septum formation)
Emer Lyons
Quiz por Emer Lyons, atualizado more than 1 year ago
Emer Lyons
Criado por Emer Lyons mais de 6 anos atrás
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Resumo de Recurso

Questão 1

Questão
The Cardiovascular System is the second major system to function in the embryo
Responda
  • True
  • False

Questão 2

Questão
In the early development of the cardiovascular system:
Responda
  • 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

Questão 3

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

Questão 4

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

Questão 5

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

Questão 6

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

Questão 7

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

Questão 8

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

Questão 9

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

Questão 10

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

Questão 11

Questão
The Vitelline Veins
Responda
  • 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

Questão 12

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

Questão 13

Questão
The Common Cardinal veins
Responda
  • 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

Questão 14

Questão
The Umbilical Veins
Responda
  • 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

Questão 15

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

Questão 16

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

Questão 17

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

Questão 18

Questão
The primordial myocardium forms from [blank_start]splanchnic mesoderm[blank_end]
Responda
  • splanchnic mesoderm

Questão 19

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

Questão 20

Questão
As the primitive heart bends:
Responda
  • 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

Questão 21

Questão
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]
Responda
  • 4
  • 5

Questão 22

Questão
The Aorta is formed from the coalescence of:
Responda
  • The Umbilical Arteries
  • The Embryonic Arteries
  • The Atrioventricular Arteries

Questão 23

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

Questão 24

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

Questão 25

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

Questão 26

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

Questão 27

Questão
The 6th Aortic Arch gives rise to:
Responda
  • 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

Questão 28

Questão
Fusion of the outflow tract cushions results in separation of the blood flow
Responda
  • True
  • False

Questão 29

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

Questão 30

Questão
In right atrial septum formation:
Responda
  • 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

Questão 31

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

Questão 32

Questão
The pulmonary veins bud from the [blank_start]left atrium[blank_end]
Responda
  • left atrium

Questão 33

Questão
Atrial Septation is complete at week 8
Responda
  • True
  • False

Questão 34

Questão
The Septum Primum:
Responda
  • 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

Questão 35

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

Questão 36

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

Questão 37

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

Questão 38

Questão
Ostium Primum defects cause 70% of ASDs
Responda
  • True
  • False

Questão 39

Questão
Select the correct statements about Ostium Secundum defects:
Responda
  • 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

Questão 40

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

Questão 41

Questão
The muscular portion of the Interventricular septum:
Responda
  • 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

Questão 42

Questão
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.
Responda
  • inferior endocardial cushion
  • lateral walls of the ventricles
  • membranous
  • muscular
  • tendonous

Questão 43

Questão
Select the correct statements regarding Ventricular septal defects:
Responda
  • 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

Questão 44

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

Questão 45

Questão
The closure of the atrial septum is due to anatomical changes
Responda
  • True
  • False

Questão 46

Questão
Select the INCORRECT statements regarding the closure of the atrial septum:
Responda
  • 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

Questão 47

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

Questão 48

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

Questão 49

Questão
Upon anatomical closure, the Ductus Arteriosus becomes the [blank_start]Ligamentum Arteriosum[blank_end]
Responda
  • Ligamentum Arteriosum

Questão 50

Questão
Which of the following is not associated with the Tetralogy of Fallout?
Responda
  • 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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