[PDF] heart as arena - Conception

Introduction

Development of the heart and vascular system is often described together as the cardiovascular system, with the heart being the first functional organ that forms in the embryo. Development begins very early in mesoderm both within (embryonic) and outside (extra embryonic, yolk sac and placental) the embryo. Vascular development therefore occurs in ...

Textbooks

Human Embryology(2nd ed.) Larson Ch7 p151-188 Heart, Ch8 p189-228 Vasculature

Timecourse

Forms initially in splanchnic mesoderm of prechordal plate region - cardiogenic region

Heart Development Movies

Animations

Animal Models

Amphibians and reptiles have a three-chambered heart with a single ventricle. Blood leaves the heart ventricle through either the pulmonary artery to the lungs or the aorta to supply the body. The pulmonary artery in amphibians also supplies the skin. Mammals and birds have a four-chambered heart with a two ventricles. The right ventricle supplies ...

Pharyngeal Arch Arteries

In the head region of the embryo, each pharyngeal arch initially has paired arch arteries. These are extensively remodelled through development and give rise to a range of different arterial structures, as shown in the list below. 1. Arch 1- mainly lost, form part of maxillary artery. 2. Arch 2- stapedial arteries. 3. Arch 3- common carotid arterie...

Renal Venous Development

The renal arterial and venous systems are also reorganised extensively throughout development with changing kidney position. 1. Links: Renal Development

Fetal Blood Flow

Mean Late Fetal Blood Flows (8 subjects) in the major vessels of the human fetal circulation by phase contrast MRI. (median gestational age 37 weeks, age range of 30–39 weeks) 1. Cardiovascular Links: Fetal Blood Flow values | Mean Fetal Blood Flow | Proportions Ventricular Output | Ventricular Output (colour) | heart | blood | cardiovascular

References

Reviews

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Does Sacred Heart have a hockey arena?

Sacred Heart’s $70 million premier hockey and skating arena–located on the University’s West Campus in Fairfield–opened in January 2023. The Martire Family Arena is the crown jewel of Sacred Heart’s robust, multi-year building and expansion program, reflecting the institution’s significant growth and national status.

When does the heart start beating after fertilization?

Up until last year, my answer to this question has corresponded to the current textbook knowledge, which says that the cardiovascular system is the first organ system to function and that the human embryonic heart starts beating at 21 to 23 days after fertilization [ 6, 7, 8 ].

Why is the onset of embryonic heartbeat important?

[ PubMed] [ CrossRef] [ Google Scholar] The onset of embryonic heart beating may be regarded as the defining feature for the beginning of personal human life. Clarifying the timing of the first human heartbeat, therefore, has religious, philosophical, ethical, and medicolegal implications. ...

What is the embryological development of heart structures?

Describe the embryological development of heart structures The human heart is the first functional organ to develop. It begins beating and pumping blood around day 21 or 22, a mere three weeks after fertilization.

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