Internal Elastic Lamina
Internal Elastic Lamina - Related Videos
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Elastic Fiber Staining of Slide Sections: A Technique to Observe Gastric Cancer Metastasis
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2023
In this video, we demonstrate the elastic staining of sections obtained from gastrointestinal tumor tissue. This staining procedure enables visualization of fine elastic fibers and helps determine tumor cell invasion beyond the elastic lamina.
04:52
Isolating Enteric Glial Cells From the Submucosa and Lamina Propria of a Mouse
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2025
This video demonstrates a method for isolating enteric glial cells from the submucosa and lamina propria of the mouse intestine. It outlines the steps involved in extracting submucosa and lamina propria tissue, isolating the enteric glial cells from them, and culturing the cells on a coated well-plate to establish an enteric glial cell culture.
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Elasticity
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2023
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing deformation are removed. When an elastic material deforms under the action of an external force, it experiences internal resistance to the deformation. However, if no external force is applied, it returns to its original state. The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
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Internal Standards
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2023
Source: Laboratory of Dr. B. Jill Venton - University of Virginia The goal of many chemical analyses is a quantitative analysis, where the amount of a substance in a sample is determined. In order to accurately calculate the concentration of an unknown from a sample, careful sample preparation is key. Every time a sample is handled or transferred, some of the sample can be lost. There are strategies however, for minimizing sample loss. There are also strategies for coping with sample loss and...
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Internal Energy
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2020
The total of all possible kinds of energy present in a substance is called the internal energy (U), sometimes symbolized as E. Suppose a system with initial internal energy, Uinitial, undergoes a change in energy (transfer of work or heat), and the final internal energy of the system is Ufinal. Change in internal energy equals the difference between Ufinal and Uinitial. Although the values for Ufinal and Uinitial cannot be determined for a system, the first law of thermodynamics only...
FAQs
During systole, the elastin-rich layer stretches as arterial pressure rises. During diastole, it recoils as pressure falls, helping the vessel retain its shape across the cardiac cycle. This repeated expansion and recoil supports more stable blood flow despite pulsatile pressure, which is particularly relevant in arteries supplying the brain.
Elastin gives the internal elastic lamina the capacity to deform reversibly rather than simply remaining rigid. That mechanical behavior helps arteries tolerate repeated pressure changes while preserving their overall form. If the layer becomes damaged, fragmented, or remodeled, the vessel’s mechanical behavior may change in ways associated with arterial stiffening or aneurysm formation.
Fenestrations mean that the internal elastic lamina is not a completely continuous sheet of tissue. Its porous structure remains a defining microscopic feature while it marks the boundary between the tunica intima and tunica media. In vascular analysis, recognizing this architecture helps distinguish the layer within the arterial wall, including intracranial vessels.
Damage or fragmentation of the internal elastic lamina can alter the structural integrity of an artery supplying the brain. Remodeling of the layer may accompany changes in vascular compliance, while the overview specifically links such abnormalities with cerebrovascular disease, including aneurysm formation and arterial stiffening. These changes make the layer relevant to neurovascular pathology.
Intracranial arteries experience the same pulsatile pressure conditions that require arterial walls to stretch and recoil, but their condition also has direct relevance to neurovascular function. Examining the internal elastic lamina therefore connects vessel-wall structure with compliance, shape maintenance, and blood-flow behavior in arteries that supply neural tissue.
Fragmentation, damage, or remodeling of the layer are important findings to consider when evaluating diseased arteries. These abnormalities do not by themselves define one specific disorder, but they can accompany cerebrovascular changes such as aneurysm formation and arterial stiffening. Interpreting them alongside the vessel’s location helps relate microscopic structure to neurovascular disease.