Cuticle Cortex Medulla
Cuticle Cortex Medulla - Related Videos
15:53
Isolation and Biophysical Study of Fruit Cuticles
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Cited by 16 •
2012
Aerial plant organs are protected by the cuticle, a supramolecular biopolyester-wax assembly. We present protocols to monitor selective removal of epi- and intracuticular waxes from tomato fruit cuticles on molecular and micro scales by solid-state NMR and atomic force microscopy, respectively, and to assess the cross-linking capacity of engineered cuticular biopolyesters.
04:27
Analyzing Dendritic Morphology Across Drosophila Medulla Layers and Columns
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2025
Source: Ting, C., et al., Analyzing Dendritic Morphology in Columns and Layers. J. Vis. Exp. (2017)This video demonstrates the procedure of preparing a Drosophila brain, capturing horizontal and frontal image stacks of GFP-labeled medulla dendrites under a confocal microscope, and creating a 3D reconstruction to analyze their morphology across layers and columns.
11:02
Use of Arabidopsis eceriferum Mutants to Explore Plant Cuticle Biosynthesis
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Cited by 11 •
2008
The plant cuticle is a waxy outer covering on plants that has a primary role in water conservation but is also an important barrier against the entry of pathogenic microorganisms. In this video, we demonstrate the analysis of plant cuticle mutants identified by forward and reverse genetics approaches.
02:01
Cuticle Disruption: A Method to Collect Hemolymph from Drosophila Larvae
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2023
The Drosophila hemolymph serves as both blood and interstitial fluid, circulating throughout the body during the larva and adult stages. This video describes a protocol to collect larval hemolymph in order to quantify the circulating cells.
01:21
Brainstem: Control Centers of Medulla
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2025
The medulla oblongata is a crucial part of the brainstem responsible for controlling various autonomic and involuntary functions. It contains several nuclei, including the olivary, cuneate, gracile, and solitary nuclei. Olivary Nucleus The olivary nucleus, or inferior olivary nucleus, is located within the ventrolateral part of the medulla oblongata. It is primarily involved in motor coordination and motor learning. The olivary nucleus receives input from the spinal cord, cerebellum, and motor...
FAQs
The cuticle’s overlapping keratinized cells create an external barrier around the shaft and help protect the cortex from structural damage. When microscopy shows disrupted or altered cuticle organization, researchers can treat that pattern as evidence of hair damage. This makes the outer layer useful for evaluating hair condition in cosmetic research.
The cortex contributes substantially to the shaft’s strength because it contains densely packed keratin fibers. It also contains much of the hair’s pigment, so its condition and appearance provide information about both structural properties and coloration. Examining this region helps researchers connect microscopic features with measurable hair characteristics.
The medulla may appear continuous, discontinuous, or absent, creating a structural feature that can vary among hair samples. Researchers can record this pattern during microscopic examination and use it as one characteristic for comparison. Because interpretation considers the complete shaft, medulla observations complement information from the cuticle and cortex.
Microscopy allows researchers to inspect the cuticle, cortex, and medulla as distinct parts of a hair shaft and evaluate their visible characteristics. The examination can reveal cuticle condition, cortical structure and pigment, and the medulla’s continuity or absence. These observations support identification of hair characteristics and assessment of structural damage.
Researchers compare these features when they need to identify characteristics shared by or differing among samples. In biology and forensic analysis, the combined pattern of outer-layer condition, cortical properties, and medulla structure can support sample comparison. Using multiple regions provides a broader structural assessment than focusing on only one visible feature.
Cosmetic research can use microscopic examination to assess the condition of the cuticle and its relationship to the underlying shaft structure. Observations of structural damage, together with cortical and medullary characteristics, help describe how a hair sample appears at the microscopic level. The resulting information supports evaluation of hair condition and physical properties.