Psoas Muscle Dissection
Psoas Muscle Dissection - Related Videos
09:47
Dissection of Drosophila melanogaster Indirect Flight Muscles for Microscopy Approaches
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2025
Drosophila is a powerful model to understand fundamental mechanisms of myogenesis. This protocol for the dissection and preparation of thorax hemi-sections enables microscopy analysis of indirect flight muscle from both pupal and adult stages. This protocol enables confocal imaging of cellular morphology, protein localization, muscle structure, and multiple other aspects of myogenesis.
06:12
Dissection of the Transversus Abdominis Muscle for Whole-mount Neuromuscular Junction Analysis
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Cited by 23 •
2014
In this video we demonstrate a protocol for dissection of the transversus abdominis muscle of the mouse and use immunofluorescence and microscopy to visualize neuromuscular junctions.
03:56
Drosophila Late Pupa Indirect Flight Muscle (IFM) Dissection: A Method for High-Throughput Tissue Collection
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2023
The Drosophila flight muscles are used as a model system for muscle development and physiology. This video describes the flight musculature of adults and highlights a protocol to dissect developing indirect flight muscles that are suitable for RNA sequencing from pupae.
08:33
Dissection of Drosophila melanogaster Flight Muscles for Omics Approaches
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Cited by 15 •
2019
Drosophila flight muscle is a powerful model to study transcriptional regulation, alternative splicing, metabolism, and mechanobiology. We present a protocol for dissection of fluorescent-labeled flight muscle from live pupae to generate highly enriched samples ideal for proteomics and deep-sequencing. These samples can offer important mechanistic insights into diverse aspects of muscle development.
06:02
Posterior Approach for Debridement of the Psoas Abscess
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2020
This is a cadaveric study investigating the landmarks for the posterior approach for irrigation and debridement of the psoas abscess. The interval between the transverse processes (TP) was used to access the substance of the psoas muscle.
FAQs
Following the psoas major along its course preserves the spatial relationship between its vertebral attachments, distal insertion, and nearby neural structures. This continuous view helps learners connect a deep muscle’s anatomy with movement-related function rather than studying isolated regions. It also provides an anatomical framework for interpreting pain or neurological findings in the same area.
The lumbar plexus is important because it forms within the psoas muscle and gives rise to major peripheral nerves. Exposing this arrangement shows how a muscle can contain and surround components of the nervous system. In neuroscience, that relationship helps explain why regional anatomical changes may be relevant when interpreting neurological deficits and localized pain.
Layer-by-layer tissue removal reveals structures in their anatomical sequence and maintains their relationships as deeper regions become visible. For the psoas region, this approach allows the examiner to follow the muscle while identifying the plexus within it. The resulting three-dimensional understanding is more useful for regional interpretation than viewing individual structures without their surrounding context.
The psoas region links a structure involved in movement with a neural network embedded within the same anatomical area. Examining both together helps students recognize that musculoskeletal and nervous-system findings can share a regional basis. This integrated perspective supports more informed interpretation of pain patterns, neurological deficits, and the anatomical reasoning used in clinical examination.
A basic sequence begins with methodical removal of tissue in layers, followed by identification of the psoas major and its surrounding structures. The muscle is then traced from its lumbar vertebral attachments toward the lesser trochanter, while the lumbar plexus is identified within the muscle. This sequence preserves continuity and clarifies how the structures are arranged.
In neuroscience education, the dissection provides a direct anatomical context for the organization of the lumbar plexus and its major peripheral nerves. Students can relate nerve location to an identifiable muscle and to surrounding regional structures. That connection strengthens interpretation of neural organization and makes neurological anatomy more applicable to examination and pain-related reasoning.
The approach is relevant when clinicians or trainees need to interpret deep regional anatomy alongside pain or neurological deficits. By clarifying the psoas, surrounding tissues, and lumbar plexus, it supports anatomical reasoning during clinical examination. The same spatial information can contribute to surgical planning by showing how important neural structures relate to the muscle.