Structures in the Four Layers

Cards (33)

  • ORGAN: Esophagus
    LAYER: Mucosa
    • Nonkeratinized Stratified squamous epithelium
    • Lamina Propria
    • fine connective tissue
    • blood vessels
    • lymphatic nodule
    • excretory ducts of mucous acini of esophageal glands proper
    • Muscularis Mucosa
    • smooth muscle
  • ORGAN: Esophagus
    LAYER: Submucosa
    • Dense irregular connective tissue
    • Excretory ducts of Mucous Acini of Esophageal Glands Proper
    • Adipose tissue
    • Veins and Arteries
  • ORGAN: Upper Esophagus
    LAYER: Muscularis Externa
    • Inner Circular Muscle Layer (Skeletal)
    • Outer Longitudinal Muscle Layer (Skeletal)
  • ORGAN: Upper & Middle Esophagus
    LAYER: Adventitia
    • Connective Tissue purely
    • Adipose tissue
    • Blood vessels
    • Nerve fibers
  • ORGAN: Middle Esophagus
    LAYER: Muscularis Externa
    • Inner Circular Muscle Layer (Skeletal-Smooth)
    • Outer Longitudinal Muscle Layer (Skeletal-Smooth)
  • ORGAN: Lower Esophagus
    LAYER: Muscularis Externa
    • Inner Circular Layer (Smooth)
    • Outer Longitudinal Layer (Smooth)
  • ORGAN: Lower Esophagus
    LAYER: Serosa
    • Connective tissue layer lined with simple squamous mesothelium
  • ORGAN: Stomach
    PART: Cardia
    LAYER: Mucosa
    • Surface Epithelium
    • Simple Columnar Epithelium
    • Gastric Pits
    • Cardiac Glands
    • Lamina Propria
    • Mucosal Ridges
    • Lymphatic nodules
    • Muscularis Mucosae
    • Inner circular
    • Lymphatic nodule 
    • Outer longitudinal
  • ORGAN: Stomach
    PARTS: Cardia, Fundus and Body
    LAYER: Submucosa
    • Dense irregular connective tissue 
    • And MORE collagen fibers than lamina propria
    • Lymph vessels
    • Capillaries
    • Arterioles
    • Venules
    • Submucosal Meissner Nerve Plexus
  • ORGAN: Stomach
    PARTS: Cardia, Fundus and Body
    LAYER: Muscularis Externa
    • Oblique layer
    • Circular layer
    • Myenteric Auerbach Nerve Plexus (between circular and longitudinal)
    • Longitudinal layer
  • ORGAN: Stomach
    PARTS: Cardia, Fundus and Body
    LAYER: Serosa
    • Simple squamous mesothelium of visceral peritoneum
    • Adipose cells
  • ORGAN: Stomach
    PARTS: Fundus and Body
    LAYER: Mucosa
    • Surface Epithelium
    • Simple Columnar Epithelium
    • Gastric Pits 
    • Gastric Glands
    • Isthmus
    • Parietal Cells
    • Neck
    • Mucous neck cells
    • Base or Fundus
    • Chief (zymogenic) cells
    • Enteroendocrine cells
    • Stem cells
    • Lamina Propria
    • Reticular and Collagen fibers
    • Mucosal Ridges
    • Fibroblast
    • Lymphatic nodule
    • Lymphocytes
    • Loose CT cells
    • Muscularis Mucosae 
    • Inner circular
    • Outer Longitudinal 
    • Submucosa
    • Denser CT
    • Collagen fibers
    • Fibroblasts
    • Arterioles and Venules
    • Lymphatics
    • Capillaries
    • Adipose Cells
  • ORGAN: Stomach
    PARTS: Pylorus
    LAYER: Submucosa
    • Dense irregular CT
    • Blood vessels
  • ORGAN: Stomach
    PARTS: Pylorus
    LAYER: Mucosa
    • Surface Epithelium
    • Simple Columnar Epithelium
    • Gastric Pits
    • Pyloric Glands
    • Lamina Propria
    • Lymphatic Nodule
    • Muscularis Mucosae
    • Inner circular
    • Lymphatic nodule 
    • Outer longitudinal
  • ORGAN: Stomach
    PARTS: Pylorus
    LAYER: Muscularis Externa
    • Oblique
    • Circular
    • Forms Pyloric Sphincter at pyloric-duodenal junction
    • Longitudinal
  • ORGAN: Small Intestine
    PARTS: Duodenum and Jejunum
    LAYER: Mucosa
    • Lining epithelium with columnar cells
    • Plicae circularis 
    • Villi 
    • Striated Brush Borders
    • Goblet Cells
    • Lamina Propria
    • Intestinal Glands (Crypts of Lieberkuhn)
    • Paneth cells
    • Enteroendocrine or APUD cells
    • Lacteals
    • Lymphatic nodules
    • Muscularis Mucosae
  • ORGAN: Small Intestine
    PARTS: Duodenum
    LAYER: Submucosa
    • Duodenal (Brunner’s) Glands
  • ORGAN: Small Intestine
    PARTS: Duodenum, Jejunum, and Ileum
    LAYER: Muscularis Externa
    • Inner Circular
    • Myenteric (Auerbach) Nerve Plexus
    • Outer Longitudinal
  • ORGAN: Small Intestine
    PARTS: Ileum
    LAYER: Mucosa
    • Surface epithelium
    • Villi
    • Lamina Propria
    • Intestinal glands
    • Lacteals 
    • Peyer Patches
    • Muscularis Mucosae
    • Peyer Patches
  • ORGAN: Small Intestine
    PARTS: Ileum
    LAYER: Submucosa
    • Extension of Peyer Patches
  • ORGAN: Large Intestine
    PARTS: Colon
    LAYER: Mucosa
    • Simple Columnar Epithelium
    • Absorptive columnar cells 
    • Goblet cells 
    • Lamina Propria 
    • Intestinal glands 
    • Lymphatic nodules
    • Muscularis Mucosae
  • ORGAN: Large Intestine
    PARTS: Colon
    LAYER: Submucosa
    • CT cells
    • Blood vessels and nerves
  • ORGAN: Large Intestine
    PARTS: Colon and Rectum
    LAYER: Muscularis Externa
    • Inner Circular 
    • Continuous
    • Myenteric (Auerbach) Nerve Plexus 
    • Outer Longitudinal
    • Taeniae Coli
  • ORGAN: Large Intestine
    PARTS: Appendix
    LAYER: Mucosa
    • Lining epithelium
    • Goblet cells
    • Lamina Propria
    • Intestinal Glands
    • Diffused lymphatic tissue
    • Lymphatic Nodules with Germinal Centers
    • Muscularis Mucosae
  • ORGAN: Large Intestine
    PARTS: Appendix
    LAYER: Submucosa
    • Diffuse lymphatic tissue
  • ORGAN: Large Intestine
    PARTS: Appendix
    LAYER: Muscularis Externa
    • Inner Circular
    • Myenteric (Auerbach) Nerve Plexus
    • Outer Longitudinal
  • ORGAN: Large Intestine
    PARTS: Rectum
    LAYER: Mucosa
    • Simple Columnar Epithelium
    • Striated borders
    • Goblet cells
    • Lamina Propria 
    • Intestinal glands
    • Adipose cells
    • Lymphatic nodules
    • Muscularis Mucosae
  • ORGAN: Large Intestine
    PARTS: Rectum
    LAYER: Submucosa
    • Temporary folds
    • Upper
    • Permanent folds
    • Lower 
    • Blood vessels
  • ORGAN: Large Intestine
    PARTS: Rectum
    LAYER: Adventitia (portion)/Serosa (the rest)
    • Blood vessels
  • ORGAN: Large Intestine
    PARTS: Anus (Anorectal Junction)
    LAYER: Mucosa
    • Simple columnar to stratified squamous
    • Lamina Propria
    • Intestinal Glands 
    • Lymphatic nodules 
    • Muscularis Mucosae
    • Internal Hemorrhoidal Plexus
  • ORGAN: Large Intestine
    PARTS: Anus (Anorectal Junction)
    LAYER: Submucosa
    • Continuing blood vessels of internal hemorrhoidal plexus
  • ORGAN: Large Intestine
    PARTS: Anus (Anorectal Junction)
    LAYER: Muscularis Externa
    • Internal Anal Sphincter
    • Smooth
    • Upper
    • External Anal Sphincter
    • Skeletal
    • Lower
    • Levator Ani muscle
  • What cell secretes somatostatin?
    D cells