Heart dEVLOPMENT PT 1

Stages of Cardiac Development

The progression from a single tube to distinct chambers in the heart.

Cardiac Progenitor Cells

Cells that give rise to the cardiac crescent, crucial for heart formation.

Cardiac Crescent

A crescent-shaped structure formed by migrating cardiac progenitor cells.

Mesodermal Origins

Source of cardiac progenitor cells that migrate during early embryonic development.

Gastrulation Process

Transformation of the embryo to feature three germ layers: ectoderm, mesoderm, endoderm.

Endocardial Tube Formation

Process involving the migration and fusion of two endocardial tubes into a single heart tube.

Epicardium Formation

Development of the outer layer of the heart from epicardial cells.

Heart Tube Fusion

The merging of cardiac structures to form a single linear heart tube.

Heart Looping Mechanism

The process that repositions the atria above the ventricles during heart development.

Chamber Orientation

The arrangement of the heart's chambers, crucial for effective blood flow.

Apoptosis in Heart Development

Process facilitating heart looping by creating pivot points in the cardiac structure.

Blood Flow Direction

The pathway blood takes through the primitive heart, entering from the superior and inferior vena cava.

Future Heart Structures

Emergence of distinct left and right ventricles from a linear heart tube.

Septation and Chamber Maturation

Process required for forming separate left and right atria and ventricles with valves.