Primordial Heart Tube

Question 0

Rotates cardiogenic area and moves it centrally and caudally

Answer 0

Cranial Folding

Question 1

At what day would the sinus venosus contract and pushes blood cranially?

Answer 1

day 22

Question 2

Angioblastic cords form _______

Answer 2

Endocardial heart tubes

Question 3

Separates myocardium and heart tube endothelium

Answer 3

Cardiac Jelly

Question 4

When?

Looping of Heart tube

Answer 4

4th to 5th week

Question 5

Divides the atrium from left and right halves

Answer 5

Septum primum

Question 6

Apoptosis induced perforations appear in the center of septum primum to produce ______

Answer 6

Foramen secundum

Question 7

Incomplete partition of the atrium by the septum secundum forms _______

Answer 7

Foramen ovale

Question 8

Results from the growth and dilation of ventricles and fusing of medial walls

Answer 8

IV SEPTUM

Question 9

Connects the valve leaflets to the ventricular walls

Answer 9

Chordae tendinae

Question 10

Where cardiac conduction in the adult heart begins

Answer 10

Sinoatrial node / SA Node

Question 11

First to become electrically active and “pacemaker”

Answer 11

Cardiomyocytes

Question 12

Slows the transmission of an impulse between the atria and ventricles

Answer 12

AV node

Question 13

Regulates cardiomyogenesis from the blastula to gastula stages as well as the morphological changes that occur later in development such as looping and septation

Answer 13

Signaling Mechanisms

Question 14

Inhibits the formation of cardiogenic mesoderm

Answer 14

Ectodermal Signals

Question 15

Expressed in all animals with contractile vascular cells and are crucial for myocardial development

Answer 15

Nk Family transcription factors

Question 16

Required for left ventricular chamber development

Answer 16

Nkx2.5

Question 17

Forms endothelial cells

Answer 17

Angioblast

Question 18

Process of vessel formation

Answer 18

Vasculogenesis

Question 19

Sprouting from pre-existing vessels

Answer 19

Angiogenesis

Question 20

Transmembrane receptor protein involved in regulating cell differentiation in many developing systems

Answer 20

notch

Question 21

Location of stem cells in adults

Answer 21

Bone marrow

Question 22

Stem cells that form blood cells

Answer 22

Hematopoietic stem cells