Vascular and Lymph Sys

Question 1

What do blood and lymph vessels develop from?

Answer 1

mesoderm

Question 2

What are the two ways blood and lymph vessles develop?

Answer 2

1. vasculogenesis (from blood islands)

2. angiogenesis (from pre existing vessels)

Question 3

Where is the shift of blood cell production

Answer 3

yolksac (mesoblastic) –> liver/spleen (hepatosplenic) –> bone marrow (myeloid)

Question 4

What are the two extraembryonic circuits?

Answer 4

1. vitalline 2. umbilical

Question 5

What do the vitalline arteries and veins do?

Answer 5

circulate blood to and from yolk sac

Question 6

What does the umbilical artery do?

Answer 6

carry pooly oxygenated blood from embryo to chorion

Question 7

What are pharyngeal arches composed of?

Answer 7

mesecheme core

Question 8

What are pharyngeal clefts composed of

Answer 8

ectoderm

Question 9

what are pharyngeal pouches composed of?

Answer 9

endoderm

Question 10

What is the adult vessel that arises from arch III?

Answer 10

common carotid and 1st part of internal carotid

Question 11

What is the adult vessel that arises from the left IV arch?

Answer 11

Arch of aorta

Question 12

What is the adult vessel that arises from the right IV arch?

Answer 12

R. Subclavian

Question 13

What arises from the left VI arch?

Answer 13

L. pulmonary and ductus arteriosus

Question 14

What arises from the right VI arch?

Answer 14

R. pulmonary

Question 15

What does the ductus arteriosus link? What is the purpose?

Answer 15

links pulmonary artery with aorta, it bypasses the lungs which are nonfunctional in the fetus (becomes ligamentum of arteriosus in adults)

Question 16

The vitelline a. develops into what adult aderivative?

Answer 16

celiac, SMA, IMA

Question 17

What does the ductus venosus link? what is the purpose?

Answer 17

Umbilical vein and IVC, it bypasses the liver