Development of the Heart 1+2 Flashcards Preview

Cardio unit 5 > Development of the Heart 1+2 > Flashcards

Flashcards in Development of the Heart 1+2 Deck (22)
Loading flashcards...
1

when does development of the heart begin

week 3``

2

when does the heart start functioning

week 4

3

the majority of the heart is from what derm layer

mesoderm

4

what 2 embryoligical things does the cv come from

mesoderm and neural crest cells

5

what does the trunkus arterosis from

aorta and pulmonary trunk

6

what does the bulbus cordis from

SMOOTH part of ventricles

7

what does the primitive ventricle form

ROUGH/ trabeculated part of the ventricles

8

what does the primitive atrium form

ROUGH/ trabeculated part of the atria

9

what does the sinus venous form

SMOTH part of RIGHT atrium , coronary sinus

10

does the sinus venous contribute anything to the LA

no

11

are the endocardial cushions formed from

neural crest cell migration

12

endocardial cushions migrate towards each other and form

av septum

13

a person has an atria that communicate with both ventricles so that there is one big pool of blood what caused this

failure of AV septum formation

14

what happens in Ebstein's anomaly

tricuspid valve is displaced toward the apex of the R ventricle so that there is a super big right atrium

15

a child has a hypertrophied right atrium in utero what caused this

premature closure of the foramen ovale

16

what clinical sign is associated with premature closure of the foramen ovale

hypertrophied right ventricle

17

the truncus arteriosus divides into what 2 structures

aorta and pulmonary trunk

18

the truncus arteriosis should have what arrangement

spiral

19

what happens in persistent truncus arteriosis

abnormal neural crest migration makes it so that there is no separation of the aorta from the pulmonary trunk so therefore blood from the right ventricle can enter the aorta leading to cyanosis

20

what happens in transposition of the great arteries

abnormal neural crest cell migration so that there is no spiral development of the aorta and pulm trunk therefore deoxy blood goes thru aorta

21

what things make of tetralogy of Fallot

PROVe

pulmonary stenosis
RV hypertrophy
Overriding aorta
VSD

22

What is the most common preterm anomaly

PDA - ductus arteriosis doesn't become a ligament so blood can travel from the aorta to the pulmonary trunk