Bulbus cordis

<h2 id="structure">Structure</h2>
In the early <a href="/facts/Tubular_heart/CxLXM38p">tubular heart</a>, the bulbus cordis is the major outflow pathway.<a class="footnote-ref" id="fnref:2" href="#fn:2">2</a> It receives blood from the <a href="/facts/Primitive_ventricle/BINYeCxK">primitive ventricle</a>, and passes it to the <a href="/facts/Truncus_arteriosus/WvCucm5h">truncus arteriosus</a>.<a class="footnote-ref" id="fnref:3" href="#fn:3">3</a><a class="footnote-ref" id="fnref:4" href="#fn:4">4</a> After <a href="/facts/Heart_development/wL9UQjsb">heart looping</a>, it is located slightly to the left of the ventricle.<a class="footnote-ref" id="fnref:5" href="#fn:5">5</a>

<h3>Development</h3>
Further information: <a href="/facts/Heart_development/wL9UQjsb">Heart development</a>
The early bulbus cordis is formed by the fifth week of <a href="/facts/Embryonic_development/1lFY4EoW">development</a>.<a class="footnote-ref" id="fnref:6" href="#fn:6">6</a> The truncus arteriosus is derived from it later.<a class="footnote-ref" id="fnref:7" href="#fn:7">7</a>
The adjacent walls of the bulbus cordis and ventricle approximate, fuse, and finally disappear, and the bulbus cordis now communicates freely with the <a href="/facts/Right_ventricle/FCzV1xm7">right ventricle</a>, while the junction of the bulbus with the <a href="/facts/Truncus_arteriosus_(embryology)/WvCucm5h">truncus arteriosus</a> is brought directly ventral to and applied to the <a href="/facts/Atrial_canal/vpCmq28M">atrial canal</a>.
By the upgrowth of the <a href="/facts/Ventricular_septum/sCFj6ywI">ventricular septum</a> the bulbus cordis is separated from the <a href="/facts/Left_ventricle/FCzV1xm7">left ventricle</a>, but remains an integral part of the right ventricle, of which it forms the <a href="/facts/Infundibulum_(heart)/JkRqm0kL">infundibulum</a>.
Together, the bulbus cordis and the primitive ventricle give rise to the <a href="/facts/Ventricle_(heart)/FCzV1xm7">ventricles</a> of the formed heart.

<h2 id="other-animals">Other animals</h2>
The bulbus cordis is shared in the development of many animals, including <a href="/facts/Frog/IxYhbeda">frogs</a><a class="footnote-ref" id="fnref:8" href="#fn:8">8</a> and <a href="/facts/Fish/fln4gH9V">fish</a>.<a class="footnote-ref" id="fnref:9" href="#fn:9">9</a>

<h2 id="additional-images">Additional images</h2>

This article incorporates text in the <a href="/facts/Public_domain/YWKMDKw4">public domain</a> from <a href="https://archive.org/stream/anatomyofhumanbo1918gray#page/513/mode/2up">page 513</a> of the 20th edition of <a href="/facts/Gray%27s_Anatomy/dLMyjr2p">Gray's Anatomy</a> (1918)

<h2 id="external-links">External links</h2>
<ul><li><a href="/facts/Temple_University/trvSdFWo">Embryology at Temple</a> <a href="https://web.archive.org/web/20120728034701/http://isc.temple.edu/marino/embryology/Heart98/heart97b/sld023.htm">Heart98/heart97b/sld023</a></li>
<li><a href="https://syllabus.med.unc.edu/courseware/embryo_images/unit-cardev/cardev_htms/cardev017.htm">cardev-017</a>—Embryo Images at <a href="/facts/University_of_North_Carolina_at_Chapel_Hill/Wrd3mBWz">University of North Carolina</a></li>
<li><a href="/facts/Loyola_University_Chicago/Dfq5IapC">MedEd at Loyola</a> <a href="http://www.meddean.luc.edu/Lumen/MedEd/GrossAnatomy/thorax0/Heart_Development/AtrioVent.html">GrossAnatomy/thorax0/Heart_Development/AtrioVent.html</a></li>
<li>Kirby, Margaret L. (2007). <a href="https://books.google.com/books?id=fjhCQ-QbtbsC">Cardiac development</a>. <a href="/facts/Oxford_University_Press/CYyTzzWG">Oxford University Press</a>. p. 119. <a href="/facts/ISBN_(identifier)/15AdSPa9">ISBN</a> 978-0-19-517819-7. Retrieved 20 April 2011.</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1">Larsen, William J (2001). Human Embryology (3rd ed.). Elsevier. p. 160. ISBN 0-443-06583-7. <a href="0-443-06583-7" target="_blank">0-443-06583-7</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></li>
<li id="fn:2">Carlson, Bruce M. (2014), "Development of the Heart", Reference Module in Biomedical Sciences, Elsevier, ISBN 978-0-12-801238-3, retrieved 2021-01-05 <a href="978-0-12-801238-3" target="_blank">978-0-12-801238-3</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></li>
<li id="fn:3">Carlson, Bruce M. (2014), "Development of the Heart", Reference Module in Biomedical Sciences, Elsevier, ISBN 978-0-12-801238-3, retrieved 2021-01-05 <a href="978-0-12-801238-3" target="_blank">978-0-12-801238-3</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></li>
<li id="fn:4">De Iuliis, Gerardo; Pulerà, Dino (2011-01-01), De Iuliis, Gerardo; Pulerà, Dino (eds.), "Chapter 6 – The Frog", The Dissection of Vertebrates (2nd ed.), Boston: Academic Press, pp. 127–145, ISBN 978-0-12-375060-0, retrieved 2021-01-05 <a href="978-0-12-375060-0" target="_blank">978-0-12-375060-0</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></li>
<li id="fn:5">De Iuliis, Gerardo; Pulerà, Dino (2011-01-01), De Iuliis, Gerardo; Pulerà, Dino (eds.), "Chapter 6 – The Frog", The Dissection of Vertebrates (2nd ed.), Boston: Academic Press, pp. 127–145, ISBN 978-0-12-375060-0, retrieved 2021-01-05 <a href="978-0-12-375060-0" target="_blank">978-0-12-375060-0</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></li>
<li id="fn:6">Belmont, John W. (2015), Moody, Sally A. (ed.), "Chapter 33 – Genetic and Developmental Basis of Congenital Cardiovascular Malformations", Principles of Developmental Genetics (2nd ed.), Oxford: Academic Press, pp. 607–633, ISBN 978-0-12-405945-0, retrieved 2021-01-05 <a href="978-0-12-405945-0" target="_blank">978-0-12-405945-0</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></li>
<li id="fn:7">Carlson, Bruce M. (2014), "Development of the Heart", Reference Module in Biomedical Sciences, Elsevier, ISBN 978-0-12-801238-3, retrieved 2021-01-05 <a href="978-0-12-801238-3" target="_blank">978-0-12-801238-3</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></li>
<li id="fn:8">De Iuliis, Gerardo; Pulerà, Dino (2011-01-01), De Iuliis, Gerardo; Pulerà, Dino (eds.), "Chapter 6 – The Frog", The Dissection of Vertebrates (2nd ed.), Boston: Academic Press, pp. 127–145, ISBN 978-0-12-375060-0, retrieved 2021-01-05 <a href="978-0-12-375060-0" target="_blank">978-0-12-375060-0</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></li>
<li id="fn:9">Zaccone, G.; Marino, F.; Zaccone, D. (2011), "Design and Physiology of the Heart | Intracardiac Neurons and Neurotransmitters in Fish", in Farrell, Anthony P. (ed.), Encyclopedia of Fish Physiology, San Diego: Academic Press, pp. 1067–1072, ISBN 978-0-08-092323-9, retrieved 2021-01-05 <a href="978-0-08-092323-9" target="_blank">978-0-08-092323-9</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></li>
</ol>

Bulbus cordis open-in-new

Bulbus cordis