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Organ Histology (Tubular Organs (Ureter (Layers (Mucosa (transitional…

- - - - Mucosa
        
        transitional epithelium
        
        not flat
        
        lamina propria: connective tissue deep to epithelium
      - Muscularis
      - Adventitia: connective tissue
  - - - Mucosa
        
        transitional epithelium
        
        lamina propria: connective tissue deep to epithelium, thicker than ureter lamina propria
      - Muscularis externa: smoke clouds, spirally)
      - Adventitia: connective tissue
  - - - Villi
      - Mucosa
        
        simple columnar epithelium
        
        brush boarder
        
        intestinal glands: at the bottom of the lamina propria layer and between the lamina propria and the submucosa layer (circular/ovular)
        
        lamina propria: connective tissue deep to epithelium
        
        muscularis externa
      - Submucosa
        
        duodenal gland
      - Muscularis externa
        
        inner circular smooth muscle: looks longitudinal
        
        outer longitudinal smooth muscle: looks circular
      - Serosa: outer layer of the intestines, also referred to as visceral peritoneum
  - - - Mucosa
        
        simple columnar epithelium
        
        no villi
        
        lamina propria: connective tissue deep to epithelium
        
        muscularis mucosa
      - Submucosa
        
        lymphatic nodules: inside the submucosa just deep to the mucosa layer, usually purple colored clouds
      - Muscularis externa
      - Serosa: outer layer of the intestines, also referred to as visceral peritoneum
  - - - Mucosa (large layer)
        
        simple columnar epithelium
        
        gastric glands (begin in the epithelium and extend inside the lamina propria)
        
        gastric pits
        
        lamina propria: connective tissue deep to epithelium
        
        muscularis mucosa
      - Submucosa
      - Muscularis externa
      - Serosa: outer layer of the stomach, also referred to as visceral peritoneum
  - - - Mucosa
        
        Pseudostratified ciliated columnar epithelium
        
        lamina propria: connective tissue deep to epithelium
      - Submucosa:
      - Hyaline Cartilage
      - Trachealis Muscle
  - - - Mucosa
        
        stratified squamous epithelium
        
        lamina propria: connective tissue deep to epithelium
        
        muscular mucosa
      - Submucosa: thin, less dense layer
      - Muscularis externa: thick layer
      - Adventitia: connective tissue
- - - - lobules: large tiles
      - hepatocytes: liver cells
      - stellate macrophages: monocytes that turn into macrophages
      - sinusoids: capillaries (vessels), throughout the lobule, but more toward central vein, small openings/spaces
      - central vein: vessel
      - portal triad: near the corner of the lobule
        
        hepatic artery: smaller than vein, areterioles
        
        hepatic portal vein: center, white
        
        bile duct: bile made by liver, surrounded by simple cuboidal epithelium, dark boarder
  - - - Seminiferous tubules: large tubes with sperm inside of them, many circular structures around the edge
      - spermatozoa: dark lines inside the tubules lumen
      - interstitial cells: cells that take up space between the testis
  - - - Secondary follicles: third largest follicles
      - Primary follicles: second largest follicle
      - Primordial follicles: the follicles along the edge of the tissue containing developing oocytes
      - Mature follicles: also called vestibular follicles
        
        oocyte: biggest cell in the body
        
        zona pellucida: surrounds the oocyte
        
        corona radiata: means "crown" made out of granulosa cells
        
        antrum: space filled with fluid, large space
        
        granulosa cells: type of cell that is around the edge of the mature/vestibular follicle
  - - - Medulla: squiggly lines
        
        kidney tubules
        
        lumen
        
        simple cuboidal epithelium
      - Cortex
        
        renal corpuscle
        
        glomerulus: takes up most of space
        
        capsular space: white space between
        
        glomerular capsule
        
        simple squamous epithelium
  - - - Pancreatic islets: "islands" dense area of dots
      - Pancreatic acini: broken pieces of glass
      - Pancreatic ducts: surrounded by light pink connective tissue, simple cuboidal epithelium surrounds, various sizes