MindMap Gallery Digestive tube
This is a mind map about the digestive tract. The digestive tract is a continuous tube from the mouth to the anus, including the mouth, pharynx, esophagus, stomach, small intestine and large intestine.
Edited at 2024-02-05 18:17:12Avatar 3 centers on the Sully family, showcasing the internal rift caused by the sacrifice of their eldest son, and their alliance with other tribes on Pandora against the external conflict of the Ashbringers, who adhere to the philosophy of fire and are allied with humans. It explores the grand themes of family, faith, and survival.
This article discusses the Easter eggs and homages in Zootopia 2 that you may have discovered. The main content includes: character and archetype Easter eggs, cinematic universe crossover Easter eggs, animal ecology and behavior references, symbol and metaphor Easter eggs, social satire and brand allusions, and emotional storylines and sequel foreshadowing.
[Zootopia Character Relationship Chart] The idealistic rabbit police officer Judy and the cynical fox conman Nick form a charmingly contrasting duo, rising from street hustlers to become Zootopia police officers!
Avatar 3 centers on the Sully family, showcasing the internal rift caused by the sacrifice of their eldest son, and their alliance with other tribes on Pandora against the external conflict of the Ashbringers, who adhere to the philosophy of fire and are allied with humans. It explores the grand themes of family, faith, and survival.
This article discusses the Easter eggs and homages in Zootopia 2 that you may have discovered. The main content includes: character and archetype Easter eggs, cinematic universe crossover Easter eggs, animal ecology and behavior references, symbol and metaphor Easter eggs, social satire and brand allusions, and emotional storylines and sequel foreshadowing.
[Zootopia Character Relationship Chart] The idealistic rabbit police officer Judy and the cynical fox conman Nick form a charmingly contrasting duo, rising from street hustlers to become Zootopia police officers!
Digestive tube
General structure of the digestive tract wall
Mucous membrane
epithelium
Stratified squamous epithelium at both ends of the digestive tract (oral cavity, pharynx, esophagus, anus) - protection
The remaining segments of single-layer columnar epithelium - digestion and absorption
lamina propria
LCT loose connective tissue
muscularis mucosa
thin layer of smooth muscle
submucosa
CT, including nerve plexus (parasympathetic neurons, unmyelinated nerve fibers)
Muscle layer
Oral cavity, pharynx, upper esophagus, anal canal - skeletal muscles, other smooth muscles
Inner circular muscles and outer longitudinal muscles, including nerve plexuses
adventitia
fiber membrane
CT - main esophagus and terminal large intestine
Serosa
CT and mesothelium - main stomach, small intestine, large intestine
oral cavity
General structure of oral mucosa
Mucous membrane
Stratified squamous epithelium
Lamina propria: CT, glandular
Skeletal muscle/bone
tongue
Mucous membrane
Stratified squamous epithelium
lamina propria
tongue papilla
Filamentous papillae (no taste buds)
fungiform papillae
Contoured nipples
skeletal muscle
tooth
Dentin
Dentin tubules, odontoblasts, stroma Sensitive to hot, cold, sour, sweet and mechanical stimulation
enamel
The hardest tissue in the body Glaze columns, a small amount of interstitium ameloblasts, radial
cementum
dental pulp
LCT, contains blood vessels, nerve fibers
periodontal ligament
gums
pharynx
Mucous membrane
Muscle layer
adventitia
esophagus
Mucous membrane
Unkeratinized stratified squamous epithelium
submucosa
mucinous esophageal gland
Muscle layer
Upper 1/3 - skeletal muscle Middle 1/3 - skeletal muscle and smooth muscle Lower 1/3 - Smooth muscle
adventitia
fiber membrane
Stomach
Mucous membrane
epithelium
Simple columnar epithelium (surface mucus cells)
The nucleus is located at the base The top is filled with clay particles, making the supranuclear area transparent or vacuolated.
lamina propria
gastric glands
fundic glands
Distributed in the fundus and body of the stomach
chief cell
peptic cells Conical or columnar, round core RER Enzyme granules, pepsinogen
parietal cell
oxyntic or hydrochloric acid cells Synthesize and secrete hydrochloric acid - sterilizes and activates pepsinogen Secreted intrinsic factor - prevents vitamin B12 from being broken down by enzymes in the small intestine
cervical mucus cells
Few, located in the neck of the gland, with flat nuclei and light staining
stem cell
Neck of gland, bottom of gastric pit
endocrine cells
cardia gland
Pyloric gland
muscularis mucosa
smooth muscle
submucosa
Muscle layer
adventitia
Serosa
small intestine
Annular folds (mucosa and submucosa), intestinal villi (mucosal epithelium and lamina propria), and microvilli (free surface of epithelial absorptive cells) can expand the surface area of the small intestinal lumen
Mucous membrane
epithelium
absorbing cells
Limb striae (LM), microvilli (EM) Cell coat - an important part of digestion and absorption absorb nutrients Participate in the release process of secretory IgA Secretes enterokinase, which activates trypsinogen secreted by the pancreas
goblet cells
endocrine cells
lamina propria
small intestinal glands
Paneth cells (Paneth cells)
stem cell
muscularis mucosa
submucosa
Muscle layer
adventitia
the large intestine
gut-associated lymphoid tissue
endocrine cells of the gastrointestinal tract
Self-protection mechanism of gastric mucosa
Mucus-bicarbonate barrier (surface mucus cells) insoluble gel mucus
Taste buds
taste receptors
bright cells
dark cells
basal cells