Cephalic Complex Dissection
Cephalic Complex Dissection - Related Videos
07:23
A Protocol for Genetic Induction and Visualization of Benign and Invasive Tumors in Cephalic Complexes of Drosophila melanogaster
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Cited by 5 •
2013
Cooperation between an activated oncogene like RASV12 and mutations in cell polarity genes like scribbled, result in tumor growth in Drosophila where tumor cells also display invasive behaviors. Here a simple protocol for the induction and observation of the benign and invasive tumors is presented.
10:12
Gross Dissection of the Stomach of the Lobster, Homarus Americanus
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Cited by 5 •
2009
We describe the gross dissection of the stomach of the American lobster (Homarus americanus).
01:24
Cephalic Phase of Digestion
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2024
The process of digestion is composed of three stages – cephalic, gastric, and intestinal – each with a distinct control center. The cephalic phase is the first stage, and it starts even before the food enters the stomach. It is controlled by the central nervous system and is initiated by any food-related sensory stimuli, such as the sight and smell of food, which send signals to the brain. While eating, the taste receptors intensify these signals, which travel to the cerebral cortex and then to...
02:52
Dissection of the Eye-Brain Complex from Fly Pupae: A Method to Isolate Retinal Tissue
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2023
This video describes how to dissect and isolate the eye-brain complex from Drosophila pupae. The featured protocol demonstrates the procedure yielding high-quality tissue, compatible with, for example, immunostaining, as well as, other gene expression experiments.
18:37
Cancer Borealis Stomatogastric Nervous System Dissection
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Cited by 103 •
2009
The stomatogastric nervous system (STNS) of the Jonah crab (C. borealis) can be used for electrophysiology, immunohistochemistry, and cell culture studies. The STNS extraction is done in two parts: the gross and fine dissection.
FAQs
Tissue planes provide natural boundaries that help separate adjacent structures while reducing unnecessary disruption. Following these planes clarifies which vessels, nerves, organs, and connective tissues occupy each layer and reveals their three-dimensional relationships. This layered approach also helps learners connect surface landmarks with deeper anatomy, which is valuable when interpreting imaging or considering how disease and injury may spread.
Blunt separation opens or follows existing tissue planes with limited cutting, whereas sharp separation uses controlled incisions to divide tissue when a plane is not easily released. Selecting between them depends on the structure being exposed and the need to preserve landmarks or connections. Using both approaches allows progressive exposure while maintaining the anatomical relationships needed for accurate examination.
Landmarks serve as reference points for locating structures and confirming their identity as dissection progresses. By starting from recognizable features and tracing vessels, nerves, and associated organs across adjacent regions, the investigator can document continuity rather than viewing isolated parts. This method makes spatial relationships easier to understand and helps distinguish normal anatomical arrangements from unexpected variation.
Direct examination shows how anatomical relationships may differ among specimens and how disruption of one structure can affect nearby components. Comparing the observed arrangement with expected landmarks helps identify variation, while examining altered relationships provides context for injury involving closely associated tissues. These observations support a more precise understanding of why head and neck conditions may produce interconnected effects.
A systematic workflow begins by identifying surface and deeper landmarks, then proceeds through the relevant tissue layers using careful incision and blunt or sharp separation. Structures are exposed progressively, preserved where possible, and traced to their neighboring regions rather than removed prematurely. Recording spatial relationships at each stage produces a coherent anatomical map for later study and comparison.
It converts two-dimensional descriptions into a three-dimensional understanding of the head by allowing learners to observe layers, connections, and relative positions directly. Students can relate visible landmarks to deeper vessels, nerves, and organs while recognizing that anatomy includes normal variation. That experience reinforces spatial reasoning and provides a stronger foundation for interpreting clinical findings involving the head and neck.
Dissection provides physical reference for the structures represented in radiologic images, especially their depth, adjacency, and continuity across cranial and facial regions. Correlating exposed anatomy with imaging helps learners interpret unfamiliar views and recognize which structures may be closely associated despite appearing separate in a single image. This anatomical context can improve understanding of normal appearances and possible abnormalities.
Procedural planning depends on anticipating the position and relationships of structures that may be encountered along an operative path. Dissection demonstrates how vessels, nerves, tissue planes, and associated organs are arranged and where important landmarks can guide orientation. It also highlights the consequences of disrupting neighboring structures, supporting more informed planning when anatomy is complex or variable.