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Related Concept Videos

The Arch of Aorta01:10

The Arch of Aorta

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The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
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Development of the Heart01:27

Development of the Heart

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The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
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Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

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The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
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Development of Blood Vessels01:07

Development of Blood Vessels

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The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
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Bone Formation by Endochondral Ossification01:24

Bone Formation by Endochondral Ossification

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Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
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Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

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Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
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Related Experiment Video

Updated: Jun 25, 2025

Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction
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Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction

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[Aortic Arch:Embryology and Remodeling].

Shinsuke Sato1, Yasunari Niimi

  • 1Department of Neurosurgery, St Luke's International Hospital.

No Shinkei Geka. Neurological Surgery
|May 24, 2024
PubMed
Summary

An aberrant right subclavian artery is a rare vascular variation. Understanding this anatomy is crucial for neurointerventionalists to ensure procedural safety and patient outcomes.

Area of Science:

  • Vascular Anatomy
  • Embryology
  • Interventional Radiology

Background:

  • A right aortic arch and aberrant right subclavian artery arise from abnormal pharyngeal arch artery remodeling.
  • This anatomical variation is occasionally identified during diagnostic angiography.
  • Associated conditions include Down syndrome and congenital heart disease, with a higher incidence of aberrant right subclavian artery.

Purpose of the Study:

  • To highlight the anatomical and clinical significance of aberrant right subclavian artery.
  • To emphasize the importance of neurointerventionalists understanding this vascular variation for procedural safety.
  • To discuss potential complications and management strategies.

Main Methods:

  • Review of anatomical variations and embryological development of aortic arch.

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  • Analysis of clinical presentations and diagnostic findings associated with aberrant right subclavian artery.
  • Discussion of interventional approaches for managing complications.

    • Main Results:

    • Aberrant right subclavian artery can lead to symptomatic esophageal or tracheal compression.
    • The aberrant artery root may present with dilatation (Kommerell diverticulum), dissection, intramural hematoma, or rupture.
    • These complications may necessitate surgical or endovascular intervention.

    Conclusions:

    • Neurointerventionalists require a thorough understanding of aberrant right subclavian artery anatomy for safe and effective procedures.
    • Pre-procedural awareness of this anomaly can guide approach selection, such as considering a left transradial approach.
    • Prompt recognition and management of associated complications are vital for patient care.