Brain Block Mounting
Brain Block Mounting - Related Videos
03:16
Intravenous Delivery of Receptor Blockers to Reduce Brain Edema in a Mouse Model
0 Views •
2025
Source: Zeynalov, E. et. al., Continuous IV Infusion is the Choice Treatment Route for Arginine-vasopressin Receptor Blocker Conivaptan in Mice to Study Stroke-evoked Brain Edema. J. Vis. Exp. (2016)This video demonstrates the intravenous delivery of an arginine-vasopressin (AVP) receptor antagonist in a mouse model. Transient middle cerebral artery occlusion induces brain edema. An AVP receptor antagonist is administered through a catheter in the left jugular vein, alleviating edema.
02:21
Dissection and Mounting of Fruit Fly Larval Brain Explants
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2025
This video demonstrates the dissection and mounting of brain explants from Drosophila larvae. The central nervous system (CNS), attached to eye disks, is extracted from the larvae and then mounted on a glass slide in a physiological saline solution.
02:57
Mounting Adult Drosophila Brains: A Method to Prepare Slides for Confocal Imaging
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2023
This video describes a method of mounting intact brains from adult flies under a bridge slide and shows the protocol performed on immunostained brains for fluorescent microscopy.
09:53
A Simple One-step Dissection Protocol for Whole-mount Preparation of Adult Drosophila Brains
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Cited by 29 •
2016
The adult Drosophila brain is a valuable system for studying neuronal circuitry, higher brain functions, and complex disorders. An efficient method to dissect whole brain tissue from the small fly head will facilitate brain-based studies. Here we describe a simple, one-step dissection protocol of adult brains with well-preserved morphology.
08:42
Whole Mount Labeling of Cilia in the Main Olfactory System of Mice
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Cited by 14 •
2014
Cilia of olfactory sensory neurons contain proteins of the signal transduction cascade, but a detailed spatial analysis of their distribution is difficult in cryosections. We describe here an optimized approach for whole mount labeling and en face visualization of ciliary proteins.
FAQs
Orientation determines which anatomical plane the block presents for sectioning. Aligning the tissue with the intended plane helps preserve the relationships among brain regions across successive sections, making samples more consistent for comparison. This is especially important when researchers need to examine regional organization or reconstruct three-dimensional anatomy from a sequence of sections.
The embedding or support medium stabilizes the preserved tissue, while the specimen holder secures the prepared block for cutting. Together, they help maintain the block’s position as a microtome or cryostat produces thin sections. Adequate support reduces disruption of regional organization and contributes to even, reproducible sections suitable for downstream analysis.
Inaccurate mounting can alter the anatomical plane presented during sectioning and make consecutive samples less comparable. It may also compromise the continuity of regional organization needed for serial analysis or three-dimensional reconstruction. Because staining and microscopic interpretation depend on consistent tissue sections, mounting accuracy directly influences the reliability of observations across brain regions or specimens.
The preserved brain tissue is first positioned so the intended anatomical plane will be exposed. It is then embedded or otherwise supported in a suitable medium and fixed to a specimen holder. After mounting, the block can be presented to a microtome or cryostat for production of thin, even sections.
Consistently mounted blocks support serial sectioning followed by histological and immunohistochemical staining. The resulting sections can be examined microscopically to study neural structures, cell types, and pathological changes. Stable orientation also helps investigators compare corresponding brain regions across sections and organize consecutive samples for anatomical reconstruction.
The preparation is particularly valuable when studies require reproducible comparisons among brain regions or specimens, rather than isolated sections with uncertain orientation. It also supports projects that follow anatomy across consecutive sections or reconstruct three-dimensional organization. By preserving regional relationships during sectioning, mounting strengthens the link between tissue preparation and microscopic interpretation.