Related Experiment Video
Updated: Dec 6, 2025
06:02
Anatomical Reconstructions of the Human Cardiac Venous System using Contrast-computed Tomography of Perfusion-fixed Specimens
Published on: April 18, 2013
12.0K
Tentorial Venous Anatomy: Variation in the Healthy Population
J S Rosenblum1,2, J M Tunacao3, V Chandrashekhar4
1Surgical Neurology Branch (J.S.R., J.D.H.), National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland Jared.rosenblum@nih.gov.
AJNR. American Journal of Neuroradiology
|October 7, 2020
Summary
The transtentorial venous system
Area of Science:
- Neuroanatomy
- Vascular Anatomy
- Skull Development
Background:
- A novel transtentorial venous system connecting supra- and infratentorial compartments has been identified.
- This system includes medial, intermediate, and lateral tentorial veins.
Purpose of the Study:
- To characterize tentorial venous patterns in healthy adults.
- To investigate the relationship between venous patterns and cranial development measures.
Main Methods:
- Retrospective analysis of 238 patient head CTAs/CTV.
- Assessment of tentorial venous anatomy, dural sinus configurations, and skull base development.
- Statistical analysis including Cramér V association and Pearson correlation.
Main Results:
- Tentorial vein development correlates with tentorial sinus ringed configurations (p < .005).
- Three configurations were identified: ringed (Groups 1A, 1B) and non-ringed (Group 2).
- Skull base development measures predicted these configurations; specific patterns linked to internal auditory canal-petroclival angle and petrous apex pneumatization.
Conclusions:
- Transtentorial venous system variations are directly associated with cranial development.
- Understanding these variations is crucial for neurosurgical and radiological assessments.
Related Concept Videos
01:19Veins of Head and Neck
4.4K
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...
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...
4.4K
01:18Anatomy of the Brain: Ventricles
6.9K
There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen.
6.9K
01:17Veins
8.1K
Veins are an integral part of our circulatory system, serving as the blood vessels that transport blood from all body regions to the heart. They are a network of hollow tubes that carry blood low in oxygen from the body's cells back to the heart for reoxygenation. Veins are crucial for maintaining the body's overall fluid balance and the continuous circulation of blood.
Structure of Veins:
The structure of veins is specifically designed to assist in the low-pressure transportation of...
Structure of Veins:
The structure of veins is specifically designed to assist in the low-pressure transportation of...
8.1K
01:10Veins as Blood Reservoirs
7.2K
Veins, while chiefly responsible for circulating blood back to the heart, also function as storage vessels for blood. They house approximately 64 percent of the body's total blood volume, a feat made possible by their high capacitance—the inherent ability to expand and accommodate large volumes of blood, even under low pressure. The large diameter and thin walls of veins augment their distensibility, significantly more so than arteries, due to their classification as capacitance...
7.2K
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
168
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
168
01:30Venous Thrombosis I: Introduction
152
Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
152