[
  {
    "group": "epithelium",
    "file": "columnar-epithelium-cc0.jpg",
    "title": "Histology of normal simple columnar epithelium of the endometrium",
    "author": "Mikael Häggström",
    "date": "9 April 2022",
    "width": 1069,
    "height": 741,
    "source": "https://commons.wikimedia.org/wiki/File:Histology_of_normal_simple_columnar_epithelium_of_the_endometrium.jpg",
    "alt": "Actual stained tissue: tall purple cells form a continuous band across the top free surface; a curved gland profile lies on the left; loosely arranged cells and pink matrix lie below.",
    "observation": "Observe the top free boundary, tall epithelial band and underlying tissue separately.",
    "interpretation": "Source identifies normal simple columnar endometrial epithelium. The continuous tall-cell surface supports columnar architecture; nuclei at differing heights and curved profiles do not alone prove multiple layers. This is source-labeled guided practice, not a pathological or hormonal diagnosis.",
    "path": "/images/science/college-anatomy/columnar-epithelium-cc0.jpg",
    "sha256": "5585deedf0a6bd0c0430f14d3f8da62eb2ccfd9022bb4e07dd8b62965abf3f47",
    "license": "https://creativecommons.org/publicdomain/zero/1.0/",
    "checked": "2026-10-30",
    "transformation": "None; original downloaded image bytes retained."
  },
  {
    "group": "connective",
    "file": "elastic-connective-cc0.jpg",
    "title": "Connective Tissue Human Elastic Tissue (40049097400)",
    "author": "Berkshire Community College Bioscience Image Library",
    "date": "26 March 2018",
    "width": 3264,
    "height": 1840,
    "source": "https://commons.wikimedia.org/wiki/File:Connective_Tissue_Human_Elastic_Tissue_(40049097400).jpg",
    "alt": "Actual stained connective tissue: dark thin branching fibers cross thicker wavy pink bundles, with scattered dark nuclei and pale intervening matrix.",
    "observation": "Compare thin branching fibers, thicker bundles and scattered nuclei; their staining is not a direct measurement of stiffness.",
    "interpretation": "The source identifies human elastic connective tissue. The visible network is consistent with extracellular fiber organization; exact fiber chemistry and mechanical properties cannot be uniquely inferred from color alone. The single-angle model is deliberately not fitted to this specimen.",
    "path": "/images/science/college-anatomy/elastic-connective-cc0.jpg",
    "sha256": "ec6aee7c0f3f106d6a8ec0c1d4db188f8e3757bd1dd30e5848eb9754b3ce2036",
    "license": "https://creativecommons.org/publicdomain/zero/1.0/",
    "checked": "2026-10-30",
    "transformation": "None; original downloaded image bytes retained."
  },
  {
    "group": "muscle-neural",
    "file": "cardiac-muscle-cc0.jpg",
    "title": "Muscle Tissue Cardiac Muscle (27187637567)",
    "author": "Berkshire Community College Bioscience Image Library",
    "date": "5 April 2018",
    "width": 3264,
    "height": 1840,
    "source": "https://commons.wikimedia.org/wiki/File:Muscle_Tissue_Cardiac_Muscle_(27187637567).jpg",
    "alt": "Actual muscle micrograph: elongated pink fibers run largely vertically, with fine transverse striations, dark nuclei along fibers and pale spaces between groups.",
    "observation": "Locate striations and nuclei; do not identify every dark transverse mark as an intercalated disc.",
    "interpretation": "The source labels cardiac muscle. Multiple features plus provenance support this guided identification; image geometry alone does not demonstrate contraction, electrical coupling or organ performance. Skeletal and cardiac muscle both have striations, so that single feature is insufficient.",
    "path": "/images/science/college-anatomy/cardiac-muscle-cc0.jpg",
    "sha256": "52ea112051d015a34b22110d2aec0c5f3a65040762509aaf852be14741687892",
    "license": "https://creativecommons.org/publicdomain/zero/1.0/",
    "checked": "2026-10-30",
    "transformation": "None; original downloaded image bytes retained."
  },
  {
    "group": "muscle-neural",
    "file": "motor-neuron-cc0.jpg",
    "title": "Nervous Tissue Spinal Cord Motor Neuron (41850850452)",
    "author": "Berkshire Community College Bioscience Image Library",
    "date": "3 May 2018",
    "width": 3264,
    "height": 1840,
    "source": "https://commons.wikimedia.org/wiki/File:Nervous_Tissue_Spinal_Cord_Motor_Neuron_(41850850452).jpg",
    "alt": "Actual nervous tissue preparation: a large purple multipolar cell body has broad branching processes extending outward, amid many smaller dark nuclei and a pale fibrous background.",
    "observation": "Locate the large soma and processes; compare their organization with the parallel striated fibers in the muscle image.",
    "interpretation": "The source identifies a spinal-cord motor neuron preparation. A large soma with multiple processes supports neural architecture, but this field does not resolve every axon/dendrite identity, small-cell subtype or direction of functional signaling.",
    "path": "/images/science/college-anatomy/motor-neuron-cc0.jpg",
    "sha256": "c2347c7b445c851847e16b5257b667293d5d459650f486874d662b5e0cbd34fd",
    "license": "https://creativecommons.org/publicdomain/zero/1.0/",
    "checked": "2026-10-30",
    "transformation": "None; original downloaded image bytes retained."
  }
]