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Related Concept Videos

Arteries of the Head and Neck01:26

Arteries of the Head and Neck

The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
The Arch of Aorta01:10

The Arch of Aorta

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...
Arteries of the Upper Limbs01:12

Arteries of the Upper Limbs

The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...
Abdominal Aorta01:25

Abdominal Aorta

Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
Veins of Head and Neck01:19

Veins of Head and Neck

The blood drainage from the head and neck is primarily managed by three pairs of veins: the external jugular, internal jugular, and vertebral veins. The external jugular veins drain superficial scalp and face structures, passing over the sternocleidomastoid muscles to empty into the subclavian veins.
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...

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Related Experiment Video

Updated: Jul 19, 2026

Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit
07:04

Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit

Published on: April 15, 2021

Non-bifurcating cervical carotid artery.

Hidetoshi Ooigawa1, Hiroshi Nawashiro, Shinji Fukui

  • 1Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|October 21, 2006
PubMed
Summary

Extremely rare carotid artery anomalies were observed, where common carotid arteries lacked normal bifurcation and supplied external carotid artery branches. The internal carotid artery remained intact, suggesting an embryogenic vascular development issue.

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Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat
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Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat

Published on: February 5, 2011

Related Experiment Videos

Last Updated: Jul 19, 2026

Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit
07:04

Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit

Published on: April 15, 2021

Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat
13:50

Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat

Published on: February 5, 2011

Area of Science:

  • Vascular anatomy
  • Embryology
  • Human anatomy

Background:

  • The common carotid artery typically bifurcates in the neck into external and internal carotid arteries.
  • Variations in carotid artery branching patterns are uncommon but significant in clinical practice.

Observation:

  • Three cases presented with a rare anomaly: common carotid arteries that did not bifurcate in the cervical region.
  • These non-bifurcating arteries supplied multiple branches typically arising from the external carotid artery.

Findings:

  • The internal carotid artery segment remained morphologically normal and continued into the cranium.
  • This unique vascular pattern deviates significantly from standard carotid artery anatomy.

Implications:

  • Understanding this anomaly is crucial for accurate diagnosis in neurovascular imaging.
  • This case series may offer insights into vascular development during embryogenesis.
  • Knowledge of such rare variations aids surgical planning and interpretation of cerebrovascular diseases.