HN3.H1.1D3 Fenestrated Capillaries

Micrograph of Fenestrated Capillaries:

  • An electron micrograph showing the wall of a fenestrated capillary
  • Such capillaries are usually found in endocrine glands
  • Fenestrations (arrows)
  • Note the short distance and the lack of much connective tissue separating the secretory cell (X), from which hormone would be secreted, from the fenestrated capillary
  • This allows for easy and efficient diffusion of secreted hormone into the blood
  • Micrograph of Taste Buds