Laboratory Dissection
Laboratory Dissection - Related Videos
07:30
Learning Modern Laryngeal Surgery in a Dissection Laboratory
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Cited by 5 •
2020
The purpose of this paper is to illustrate how to organize a reproducible laboratory for laryngeal surgery on affordable and closely similar animal laryngeal models in order to improve anatomical and surgical knowledge and skills.
06:19
Decontamination for Laboratory Biosafety
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2023
Robert M. Rioux and Zhifeng Chen, Pennsylvania State University, University Park, PA Decontamination is essential for laboratory biosafety, as the accumulation of microbial contamination in the laboratory can lead to the transmission of disease. The degree of decontamination can be classified as either disinfection or sterilization. Disinfection aims to eliminate all pathogenic microorganisms, with the exception of bacterial spores on lab surfaces or equipment. Sterilization, on the other hand,...
08:00
Measuring Mass in the Laboratory
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2023
The analytical balance is the common piece of equipment in the scientific laboratory. These highly precise instruments can measure down to ten thousandths or even hundred thousandths of a gram. The triple beam balance is a type of scale that uses counterweights on a three rider beams to counterbalance the sample in the pan. On the other hand, modern analytical balances use a complex system of electronic sensors to accurately mass a substance. The analytical balance is so sensitive that it...
07:27
Making Solutions in the Laboratory
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2023
The ability to successfully make solutions is a basic laboratory skill performed in virtually all biological and chemical experiments. A solution is a homogenous mixture of solute dissolved in bulk liquid known as the solvent. Solutions can be described by their solute concentration, a measure of how much solute is present per unit of solution. In this video, a step-by-step procedure for how to make a water-based, or aqueous, solution for biological applications is presented. The video...
06:42
Drosophila Larval NMJ Dissection
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Cited by 115 •
2009
This protocol demonstrates how to dissect Drosophila larvae in preparation for immunohistochemistry and/or imaging of the neuromuscular junction.
FAQs
A systematic sequence helps researchers examine structures in an organized way while minimizing damage to features that may be needed later. Documenting the specimen before making incisions establishes a record of its original condition, position, and visible traits. This ordered approach improves comparisons among specimens and supports more reliable interpretation of anatomical variation.
Comparing the form and position of organs or tissues can show how body structure relates to an organism’s way of functioning in its habitat. In environmental science, these observations add anatomical evidence to questions about ecological roles and adaptations. The method therefore connects what researchers observe inside a specimen with broader investigations of organism and environment relationships.
Laboratory dissection can document the condition, arrangement, and relative form of internal structures, not merely the specimen’s external appearance. Researchers can use these observations to compare organisms, support identification, and recognize anatomical differences relevant to environmental studies. The resulting evidence complements field observations by providing direct information about structures that cannot be examined externally.
Dissecting instruments support precise incisions and controlled separation, while careful specimen handling helps preserve relevant structures for examination. Their combined use allows researchers to expose organs or tissues without unnecessarily damaging features needed for comparison. This is especially important when the study depends on documenting form, position, and condition accurately across specimens.
Before incision, researchers should document the specimen’s observable features and condition so later findings can be interpreted against its original state. The procedure then proceeds through precise openings and exposure of relevant organs or tissues, followed by comparison of their form and position. Recording these stages creates anatomical evidence rather than relying only on memory after manipulation.
The method is useful when environmental researchers need anatomical evidence for organism identification, comparative anatomy, or studies linking structure with habitat and ecological function. It can clarify features that field observations alone do not reveal. Dissection is therefore most informative when paired with observations made in the organism’s environment or with other laboratory analyses.
Laboratory dissection develops practical skills in observation, measurement, and specimen handling while giving students direct experience with anatomical evidence. Those skills help them describe structures consistently and compare specimens more carefully. In environmental science, the exercise also reinforces the connection between laboratory findings, organism identification, habitat-related structure, field observations, and additional analyses.