Cheek Cells
Cheek Cells - Related Videos
04:59
Cheek Injection Model for Simultaneous Measurement of Pain and Itch-related Behaviors
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Cited by 15 •
2019
Typically, the mouse neck injection model is used for evaluate pruritogen-induced scratch behaviors. However, the model provides information only on itch, not pain. Here, a cheek injection model is introduced in mice which can be used to simultaneously measure pain and itch-related behaviors.
04:51
Cell Structure - Student Protocol
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2019
Visualizing Onion and Human Cells ExpandIn this experiment you will prepare different types of cells from a plant and animal, onion and human respectively, and then visualize them under a microscope. HYPOTHESES: The experimental hypothesis is that the cells will appear different in overall shape and membrane structure, but there will be some shared similar structures, like nuclei, in both cells. The null hypothesis of the experiment is that there will be no difference in structure between the...
02:56
Cell Structure - Concepts
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2019
Background Cells represent the most basic biological units of all organisms, whether it be simple, single-celled organisms like bacteria, or large, multicellular organisms like elephants and giant redwood trees. In the mid 19th century, the Cell Theory was proposed to define a cell, which states: Every living organism is made up of one or more cells. The cells are the functional units of all organisms. All cells arise from preexisting cells. All cells share common features such as having a...
10:04
Tractable In Vivo Reprogramming of Tumor Cells to Type 1 Conventional Dendritic Cell-like Cells
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2025
This protocol describes the in vivo reprogramming of mouse cancer cells into type 1 dendritic-like cells within the tumor microenvironment through enforced expression of the transcription factors PU.1, IRF8, and BATF3.
22:06
Derivation of Hematopoietic Stem Cells from Murine Embryonic Stem Cells
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Cited by 7 •
2007
This protocol details the derivation of transplantable hematopoietic stem cells from mouse embryonic stem cells (ESC) and their subsequent injection into lethally irradiated recipient mice. Briefly, ESC are differentiated as embryoid bodies, which are then infected with retroviral HoxB4 and co-cultured with OP9 stromal cells and hematopoietic cytokines.
FAQs
Methylene blue increases contrast in a cheek-cell preparation, making the nucleus easier to distinguish from the surrounding cytoplasm and cell membrane. This visual separation helps students interpret the internal organization of an animal cell under a microscope rather than relying on an unstained outline alone.
A stained sample can reveal the nucleus, cytoplasm, and cell membrane as separate visible features. Examining their appearance together gives students a practical way to connect microscope observations with basic animal-cell structure. This is especially useful in introductory biology, where direct observation reinforces cellular identification.
Cheek cells provide a readily observed animal-cell example with a nucleus, cytoplasm, and membrane that can be examined after staining. That organization supports comparison with simpler cell types, helping learners recognize why microscopic cellular features matter when classifying cells. The comparison is therefore conceptual as well as visual in biology.
Preparation begins with a gentle swab of the inner mouth, followed by transferring the collected material to a microscope slide. Applying methylene blue can then improve contrast before microscopic examination. This workflow moves from noninvasive sampling to staining and observation, allowing a simple cheek-cell preparation to support structured study of animal-cell features.
A gentle swab is important because it collects cells from the mouth's inner lining without requiring an invasive sample. Once transferred to a slide, those cells can be stained and examined microscopically. The same accessible sampling principle also supports DNA collection, extending cheek-cell use from visual biology lessons to genetic analysis.
Beyond microscopy, cheek-cell samples can provide DNA for genetic analysis. This makes the sample useful when investigators need biological material obtained through a noninvasive collection approach rather than relying only on visible cell structure. In this context, the cells serve as a source for studying genetic information, not simply as objects identified on a slide.
In biology education, cheek cells offer an accessible way to connect staining, microscopy, and recognition of eukaryotic cell features. Introductory studies can also use them when examining human variation, because the same easily collected material supports genetic analysis. Their value comes from linking observable cell structure with broader biological questions while keeping sampling straightforward.