Biology videos

Articles

• acute inflammation
  1 June 2004

  Digital cases
  Case 25 (HPC:25) : Acute appendicitis
  Case 94 (HPC:94) : Acute appendicitis
  Case 13 (HPC:13) : Acute synovitis
  Definition: Acute inflammation is a rapid response to an injurious agent that serves to deliver mediators of host defense-leukocytes and plasma proteins-to the site of injury.
  Types - Lesional patterns
  acute inflammation
  congestive inflammation
  cellular acute inflammation
  suppurative inflammation / suppuration
  abcess / abcesses / abcedation (...)

• histones
  16 July 2003

  histone proteins

• calcium signaling
  19 July 2003

  calcium signalling, cellular calcium, Ca(2+)

• chronic interstitial nephritis
  17 March 2004

  chronic tubulointerstitial nephritis

• teratoma
  10 March 2004

  teratomas
  Definition: Teratomas are neoplasms comprised of mixed elements derived from the three germ cell layers.
  Images
  Gastric teratoma in a 1yo male
  https://twitter.com/DraEosina/status/817663085376901121
  A teratoma is generally defined as a tumor arising from pluripotent cells, and it is precisely the heterogeneity of tissues present in such a tumor that best characterizes it; it is also commonly accepted that a teratoma must contain derivatives of more than one blastodermic (...)

• mitoses
  13 July 2003

  mitosis
  Images
  in a glandular epithelium
  https://twitter.com/BeynonMD/status/740787261046919169
  in epidermis
  https://twitter.com/doctormisti/status/
  numerous atypical mitoses
  https://twitter.com/smlungpathguy/status/743442537763971073
  Pathology
  abnormal mitosis / abnormal mitoses
  quantitative variations
  no mitosis
  low mitotic activity
  moderate mitotic activity
  high mitotic activity
  See also
  mitotic spindle
  centrosomes
  cell cycle
  mitosis anomalies
  Videos (...)

• chromatin
  13 July 2003

  See also : chromatin appearance / chromatin anomalies
  Definition: Chromatin is the DNA/protein/RNA complex extracted from eukaryotic lysed interphase nuclei. Just which of the multitudinous substances present in a nucleus will constitute a part of the extracted material will depend in part on the technique each researcher uses. Furthermore, the composition and properties of chromatin vary from one cell type to the another, during development of a specific cell type, and at different stages (...)

• abscess
  9 June 2004

  abcesses
  Definition: Abscesses are localized collections of purulent inflammatory tissue caused by suppuration buried in a tissue, an organ, or a confined space. They are produced by deep seeding of pyogenic bacteria into a tissue.
  Abscesses have a central region that appears as a mass of necrotic leukocytes and tissue cells. There is usually a zone of preserved neutrophils around this necrotic focus, and outside this region vascular dilation and parenchymal and fibroblastic proliferation (...)

• DNA repair
  13 July 2003

  DNA reparation, DNA damage response, gene repair

• immunofluorescence
  21 June 2005

  Videos
  See also
  microscopy

0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | ... | 140