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

• 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 (...)

• citric acid cycle
  29 October 2003

  Krebs cycle

• cytoplasmic membrane
  9 June 2003

  plasma membrane, plasmic membrane, cell membrane

• 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 (...)

• cardiomyocytes
  18 November 2003

  Adj. cardiomyocytic; cardiac myocytes, cardiomyocyte
  Digital slides
  NCK2-18: normal endomyocardial biopsy (PAS)
  NCK2-19: normal endomyocardial biopsy (PAS diastase)
  Definition: The myocardium is composed primarily of a collection of specialized muscle cells called cardiac myocytes or cardiomyocytes.
  They are arranged largely in a circumferential and spiral orientation around the left ventricle, the chamber that pumps blood to the systemic circulation.
  Cardiac myocytes have five (...)

• neurulation
  29 October 2003

  Neurulation is a fundamental embryonic process that leads to the development of the neural tube, which is the precursor of the brain and spinal cord.
  Building a neural tube is an extremely complex phenomenon where cells need to change in shape, migrate and differentiate to form a hollow tube from a flat sheet of thickened epithelial cells (the neural plate).
  Neurulation occurs through two distinct phases: primary neurulation (weeks 3–4) that leads to the formation of the brain and most of (...)

• vaginal birth
  7 June 2007

  Videos
  See also
  Birth

• lymphatic system
  8 March 2007

  Videos
  See also
  Vessels

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