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  2. Protein signalling in heart development - Wikipedia

    en.wikipedia.org/wiki/Protein_signalling_in...

    Migration of cardiac precursor cells and fusion of the primordia: The cardiac precursor cells migrate anteriorly towards the midline and fuse into a single heart tube. Fibronectin in the extracellular matrix directs this migration. If this migration event is blocked, cardia bifida results where the two heart primordia remain separated. During ...

  3. Heart development - Wikipedia

    en.wikipedia.org/wiki/Heart_development

    The heart is the first functional organ in vertebrate embryos. The tubular heart quickly differentiates into the truncus arteriosus, bulbus cordis, primitive ventricle, primitive atrium, and the sinus venosus. The truncus arteriosus splits into the ascending aorta and the pulmonary trunk. The bulbus cordis forms part of the ventricles.

  4. Cardiac neural crest - Wikipedia

    en.wikipedia.org/wiki/Cardiac_neural_crest

    In addition to these signaling pathways, these processes are also mediated by environmental factors including blood flow, shear stress, and blood pressure. [ 26 ] The CNCCs interact with the cardiogenic mesoderm cells of the primary and secondary heart fields, which are derived from the cardiac crescent and will give rise to the endocardium ...

  5. Coronary circulation - Wikipedia

    en.wikipedia.org/wiki/Coronary_circulation

    Failure of oxygen delivery caused by a decrease in blood flow in front of increased oxygen demand of the heart results in tissue ischemia, a condition of oxygen deficiency. Brief ischemia is associated with intense chest pain, known as angina. Severe ischemia can cause the heart muscle to die from hypoxia, such as during a myocardial infarction ...

  6. Circulatory system - Wikipedia

    en.wikipedia.org/wiki/Circulatory_system

    In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. [1] [2] It includes the cardiovascular system, or vascular system, that consists of the heart and blood vessels (from Greek kardia meaning heart, and Latin vascula meaning vessels).

  7. Cardiac physiology - Wikipedia

    en.wikipedia.org/wiki/Cardiac_physiology

    Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.

  8. Tubular heart - Wikipedia

    en.wikipedia.org/wiki/Tubular_heart

    The tubular heart or primitive heart tube is the earliest stage of heart development. [1] The heart is the first organ to develop during human embryonic development. [2]From the inflow to the outflow, the tubular heart consists of sinus venosus, primitive atrium, the primitive ventricle, the bulbus cordis, and truncus arteriosus. [3]

  9. Foramen ovale (heart) - Wikipedia

    en.wikipedia.org/wiki/Foramen_ovale_(heart)

    It is one of two fetal cardiac shunts, the other being the ductus arteriosus (which allows blood that still escapes to the right ventricle to bypass the pulmonary circulation). Another similar adaptation in the fetus is the ductus venosus. In most individuals, the foramen ovale closes at birth. It later forms the fossa ovalis.