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Question 1

The embryonic origin of the ligamentum arteriosum is from :

Answer 1

The sixth arch artery which is also know as the pulmonary arch

Question 2

The most superior part of the inferior vena cava is derived from

Answer 2

Right vetelline vein

Question 3

Which umbilical vein degenerates during the fifth week of embryonic development

Answer 3

The right umbilical vein

Question 4

The definitive umbilical vein is?

Answer 4

The left umbilical vein

Question 5

Which embryonic structures are involved in the formation of the definitive right atrium

Answer 5

1)Primitive atrium
2)right sinus venosus
3)left sinus venosus
4)right sinus horn

Question 6

Of the following the one most closely associated with the ligamentum teres Hepatis is
a)the umbilical artery
B)the umbilical vein
C)the vitelline vein

Answer 6

The umbilical vein

Question 7

The remnant of the umbilical vein after it closes at birth is

Answer 7

The ligamentum teres hepatis

Question 8

What’s the other name of the ligamentum teres

Answer 8

The round ligament

Question 9

Caput medusae

Answer 9

Is the reopening of the round ligament and allows blood to flow through it leading to the condition called CAPUT MEDUSAE which is characterized by a dilated vein around the ubilicus

Question 10

What do you know about the ostium secundum defect

Answer 10

It is a heart defect that is characterized by the opening between the left and right atria .This May be :
1)caused by excessive resorption of septum prinum
2)inadequate development of the septum secundum
Depending on size of the defect there can be shuntin of blood between the atria

Question 11

In the development of the heart the coronary sinus is formed from

Answer 11

From the left horn of the sinus venosus

Question 12

What becomes the valve of the inferior vena cava and the coronary sinus in the development of the heart

Answer 12

The right sinus valve

Question 13

The mesenchymal cells that aggregate to form blood islands are called

Answer 13

Angioblasts

Question 14

The closure of the foramen primum results from the fusion of the

Answer 14

Septum secundum and the endocardial cushions

Question 15

What’s the most common atrial septal defect

Answer 15

Secundum type ASD

Question 16

The most common cardiac septal defect is

Answer 16

The membranous type vsd

Question 17

The fetal left atrium is mainly derived from the

Answer 17

Primitive pulmonary vein

Question 18

The fetal right atrium is mainly derived from the

Answer 18

Sinus venosus

Question 19

State the remnants of the ;
1)first aortic arch artery
2)second aortic arch artery
3)third aortic arch artery
4)fourth aortic arch artery
5)6th aortic arch artery

Answer 19

1)=maxillary artery
2)stapedial and the hyoid arteries
3)the proximal carotid artery
4)becomes the proximal right subclavian and part of the of the arch of The aorta
5)becomes the proximal pulmonary arteries and ductus arteriosus

Question 20

The aortic sac

Answer 20

Is connected to the dorsal aorta via the aortic arch arteries

Question 21

The crista terminalis is derived from

Answer 21

The right cusp of the valve of the sinus venosus

Question 22

The meckels diverticulum is an adult remnant of the

Answer 22

Vitelline duct

Question 23

After birth the ductus arteriosus normally closes and becomes the

Answer 23

Lingamentum arteriosum

Question 24

Pantene ductus arteriosus (PAD) is due to

Answer 24

The ductus arteriosus not closing after birth

Question 25

State the two main sources that gives rise to the arteries of the body

Answer 25

The pharyngeal (aortic)arch arteries and the
The dorsal aorta