Final Embryo - Practical

Question 1

Answer 1

1. angioblastic cord
2. cardiogenic mesoderm
3. oropharyngeal membrane

Question 2

Answer 2

1. endothelial (angioblastic) cords
2. endocardial tube

Question 3

Answer 3

1. endothelial (angioblastic) cords
2. primitive heart tube

Question 4

Answer 4

1. orophryngeal membrane
2. heart tube

Question 5

Answer 5

1. endothelium
2. cardiac jelly
3. myocardium
4. epicardium

Question 6

Answer 6

1. truncus arteriosus
2. conus cordis
3. primordial ventricle
4. primordial artia
5. sinus venosus
6. atrioventricular sulcus
7. bulboventricular sulcus
8. aortic sac
9. pharyngeal arch arteries

Question 7

Answer 7

atrioventricular canal

Question 8

Answer 8

1. right atrioventricular canal
2. left atrioventricular canal
3. fused endocardial cushions

Question 9

Answer 9

1. foramen primun
2. septum primun

Question 10

Answer 10

1. foramen secundum

Question 11

Answer 11

1. septum secundum
2. foramen ovale

Question 12

Answer 12

1. vitelline veins
2. umbillical veins
3. common cardinal veins

Question 13

Answer 13

1. left horn of the sinus venosus
2. right horn of the sinus venosus

Question 14

Answer 14

1. vitelline vein
2. anterior cardinal vein
3. common cardinal vein
4. posterior cardinal vein
5. umbillical vein

Question 15

Answer 15

1. anterior cardinal vein
2. superior vena cava

Question 16

Answer 16

1. ductus arteriosus
2. left pulmonary artery
3. ligamentum arteriosum

Question 17

Answer 17

1. celiac trunk
2. SMA
3. IMA

Question 18

Answer 18

1. abdominal aorta
2. common iliac
3. internal illiac
4. external iliac
5. medial umbilical ligament

Question 19

Answer 19

1. pharyngeal arch arteries
2. vitelline vein
3. vitelline artery
4. ant. cardinal vein
5. dorsal aorta
6. post. cardinal vein
7. umbilical vein
8. umbilical artery

Question 20

Answer 20

1. ductus venosus (ligamentum venosum)
2. umbilical vein (ligamentum teres hepatis)

Question 21

Answer 21

1. laryngotracheal groove

Question 22

Answer 22

1. lung bud (respiratory diverticulum)

Question 23

Answer 23

tracheoesophageal septum

Question 24

Answer 24

lung bud leading to the larynx, trachea, respiratory tree, and lungs

Question 25

Answer 25

1. left and right primary bronchial buds

Question 26

Answer 26

1. periocardicoperitoneal cavity 2. visceral pleura 3. parietal pleura 4. pleural cavity

Question 27

Answer 27

1. secondary bronchial buds

Question 28

What stage of lung development is this

Answer 28

pseudoglandular

Question 29

What stage of lung development is this

Answer 29

canalicular

Question 30

What stage of lung development is this

Answer 30

terminal sac

Question 31

What stage of lung development is this

Answer 31

alveolar