Posterior Region
Posterior Region - Related Videos
03:26
Isolating Short Posterior Ciliary Arteries: A Protocol to Excise Intact Short Posterior Ciliary Microvessels from Porcine Eye
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2025
This video describes the protocol to isolate the short posterior ciliary arteries from the porcine eye. The isolated short posterior arteries are a suitable source for elucidating the molecular insights and protein profiles of the ocular blood vessels.
01:03
IR Frequency Region: Fingerprint Region
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2024
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the C=O, C=N, and C=C occur between 1600–1850 cm−1. The...
14:54
Rat Model of Photochemically-Induced Posterior Ischemic Optic Neuropathy
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Cited by 2 •
2015
The goal of this protocol is to photochemically induce ischemic injury to the posterior optic nerve in rat. This model is critical to studies of the pathophysiology of posterior ischemic optic neuropathy, and therapeutic approaches for this and other optic neuropathies, as well as of other CNS ischemic diseases.
02:40
The Eukaryotic Promoter Region
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2020
The eukaryotic promoter region is a segment of DNA located upstream of a gene. It contains an RNA polymerase binding site, a transcription start site, and several cis-regulatory sequences. The proximal promoter region is located in the vicinity of the gene and has cis-regulatory sequences and the core promoter. The core promoter is the binding site for RNA polymerase and is usually located between -35 and +35 nucleotides from the transcription start site. The distal promoter regions are...
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
Posterior identity is established through signaling gradients and region-specific gene activity, including Hox gene expression. These molecular cues assign positional information along the body axis, allowing developing tissues to acquire appropriate regional characteristics. Their importance lies in coordinating the formation of body segments, organs, and appendages rather than treating each structure as an isolated developmental event.
Because anatomical orientation is relative to an organism’s axis, posterior assessment depends on the body plan being examined. Researchers can contrast a structure with the anterior region and consider its position relative to other segments, organs, or appendages. This approach supports comparisons among animals without assuming that corresponding shapes alone indicate equivalent anatomical regions.
Changes in posterior patterning can reveal how developmental instructions organize tissues. When signaling gradients or region-specific gene activity are disrupted, the resulting differences in segments, organs, or appendages can help investigators relate anatomical outcomes to positional information. This makes posterior patterning relevant to the analysis of developmental defects and to understanding how body regions are assembled.
An analysis begins by establishing the organism’s anatomical axis, locating the posterior side, and identifying nearby segments, organs, or appendages. Researchers can then describe regional morphology and relate it to developmental patterning, including Hox gene expression or signaling gradients when those features are being examined. The resulting anatomical framework makes observations consistent and comparable.
Mapping posterior organization can clarify how an organism’s body plan is arranged and how particular tissues relate to one another. In developmental studies, the region provides a reference for examining formation of segments, organs, and appendages. In comparative work, consistent positional descriptions help distinguish shared body organization from differences among species.
Posterior comparisons contribute to evolutionary analysis because researchers can examine body organization across animals using a common anatomical reference. Similar positional relationships may help frame questions about shared body plans, while differences can highlight variation in regional organization. The concept therefore links descriptive anatomy with developmental patterning and broader investigations of animal diversity.