File:Heart Looping Sequence.jpg: Difference between revisions
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# The heart begins as a straight tube then bends ventrally. | # The heart begins as a straight tube then bends ventrally. | ||
# Rotation brings the bulge of the ventral bend (predominantly the bulbus cordis and ventricle) to the right, forming a C-shaped loop. | # Rotation brings the bulge of the ventral bend (predominantly the bulbus cordis and ventricle) to the right, forming a C-shaped loop (sometimes called "U-shaped"). | ||
# As the atrium is brought cranially, the poles of the heart converge. The heart now appears as an S-shape, with the first bend in the S between the bulbus cordis and ventricle and the second bend between the atrium and sinus venosus. | # As the atrium is brought cranially, the poles of the heart converge. The heart now appears as an S-shape, with the first bend in the S between the bulbus cordis and ventricle and the second bend between the atrium and sinus venosus. | ||
# The bulbus cordis and arterial trunk move ventral to the atrium to form the later outflow tract. The atrium now lies superior to the ventricle. | # The bulbus cordis and arterial trunk move ventral to the atrium to form the later outflow tract. The atrium now lies superior to the ventricle. |
Revision as of 13:14, 26 August 2014
The sequence of events in heart looping
- The heart begins as a straight tube then bends ventrally.
- Rotation brings the bulge of the ventral bend (predominantly the bulbus cordis and ventricle) to the right, forming a C-shaped loop (sometimes called "U-shaped").
- As the atrium is brought cranially, the poles of the heart converge. The heart now appears as an S-shape, with the first bend in the S between the bulbus cordis and ventricle and the second bend between the atrium and sinus venosus.
- The bulbus cordis and arterial trunk move ventral to the atrium to form the later outflow tract. The atrium now lies superior to the ventricle.
Begin Intermediate: | Primordial Heart Tube | Heart Tube Looping | Atrial Ventricular Septation | Outflow Tract | Heart Valves | Cardiac Abnormalities | Vascular Overview |
Cite this page: Hill, M.A. (2024, April 26) Embryology Heart Looping Sequence.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Heart_Looping_Sequence.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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current | 10:49, 14 March 2010 | 1,548 × 577 (85 KB) | Z3212774 (talk | contribs) | category:Heart ILP Shows the sequence of events in heart looping. The heart begins as a straight tube then bends ventrally. Rotation brings the bulge of the ventral bend (predominantly the bulbus cordis and ventricle) to the right, forming a C-shaped |
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