Microtome Sectioning
Microtome Sectioning - Related Videos
15:53
Utilizing 3D Printing Technology to Merge MRI with Histology: A Protocol for Brain Sectioning
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Cited by 33 •
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The overall goal of this protocol is to accurately align magnetic resonance imaging (MRI) image volumes with histology sections via the creation of customized 3D-printed brain holders and slicer boxes.
09:22
Sectioning Mammary Gland Whole Mounts for Lesion Identification
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Cited by 13 •
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We developed a method to successfully remove, process, section, and stain, for histopathological evaluation, mammary tissue that had originally been fixed on slides as whole mounts. This method may promote the collection and evaluation of mammary gland whole mounts in reproductive and developmental test guideline studies.
03:30
Snap Freezing of Muscle Tissue for Sectioning: A Protocol to Obtain Ultrathin Sections of Rapidly Frozen Murine Muscle Tissue
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2023
This video describes the procedure for snap freezing muscle tissue and obtaining its thin sections. The technique can help study cancer-related cachexia in colon cancer mouse models.
01:50
Cross-Sectional Research
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2020
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
07:49
Preparation of Adult Drosophila Eyes for Thin Sectioning and Microscopic Analysis
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Cited by 21 •
2011
A standard approach to prepare adult Drosophila eyes for semi-thin sectioning and light microscopic analysis is presented here. The protocol can be used for gross morphological analysis of eye defects, or with the indicated adjustments can be used to determine genetic requirements of genes in specific cell types of the eye (e.g. clonal analysis of photoreceptors) or for electron microscopic analysis.
FAQs
The microtome’s feed mechanism determines section thickness by advancing the embedded specimen a precise distance toward the blade before each cut. Repeating that controlled movement produces sections of comparable thickness and can create a serial sequence. Consistency matters because it supports clearer microscopic images and more reliable comparisons of structures across sections or samples.
Serial sections preserve the order and spatial relationships of successive tissue slices, allowing researchers to examine how structures continue through a specimen rather than viewing one isolated plane. This sequence is especially useful when interpreting tissue organization, because neighboring sections provide complementary views of internal features and help connect microscopic appearance with biological structure.
Two handling choices strongly affect the final result: maintaining consistent section thickness and treating sections carefully during collection and mounting. Staining then enhances cellular features that may be difficult to distinguish in an unstained section. Together, these steps improve image quality and make structural comparisons between specimens more dependable.
A typical workflow starts by placing the specimen in an embedded form, then using the microtome to advance it against the blade and produce sections. The slices are collected, mounted on glass slides, and stained before microscopic examination. When serial sections are retained, the sequence supports analysis of changing structures across adjacent tissue levels.
The essential setup combines an embedded specimen, a microtome with a sharp blade, glass slides for mounting, and stains that increase the visibility of cellular features. Each component serves a different stage: the instrument controls cutting, the blade creates the slice, the slide supports examination, and staining improves visibility for microscopy.
In biology, Microtome Sectioning is valuable when investigators need to relate tissue organization to cellular structure and function. It supports histology and anatomy, contributes to pathology studies, and aids developmental research. Because sections can be compared across samples, the technique also provides a consistent basis for studying how biological structures are arranged.