Mouth

·          Hard/soft palate

·          Uvuladj

·          Gingivae

·          labial frenulum

 

Tongue

·          Chew, swallow, speech, taste buds

·          Extrinsic/intrinsic muscles

·          Hypoglossal XII

·          Lingual frenulum

 

Taste buds

·          Gustatory receptors

·          Vallate papillae

·          5 sensations

 

Teeth

·          Mastication

·          Alveoli

·          Periodontal ligament

·          Gingivae

·          Tooth structure, histology

·          Deciduous-20, permanent-32

·          Incisors

·          Canines

·          Premolars

·          molars

 

Salivary Glands

·          Secrete saliva

·          amylase-carbohydrates

·          dissolve food

·          parotid glands (Stensen’s ducts)

·          sublingual glands (Rivinus ducts)

·          submandibular (Wharton’s ducts)

 

Pharynx

·          pharyngeal constrictors

·          lining

·          cranial nerve X

 

Esophagus

·          esophageal hiatus

·          lining

·          Superior esophageal sphincter

·          Inferior esophageal sphincter

 

 

Stomach

·          Mechanical and chemical digestion

·          Cardiac, pyloric sphincter

·          L & G curvature, Omentum

·          Lining

·          Rugae

·          Gastric glands, pits

·          Mucous cells –

·          Parietal cells –

·          Chief cells –

·          Enteroendocells –

  

Digestive System

Functions:

1.

2.

3.

4.

5.

6.

Anatomically Divided:

 

 

 

Small Intestine

·          Lining

·          Peritoneum

·          Greater omentum

·          The Mesentery proper

·          Chyme

·          Duodenum

·          Jejunum

·          Ileum

·          Circular folds

·          Villi

·          Microvilli

 

Large Intestine

·          Lining

·          Absorbs fluids, ions, vitamins

·          Stores feces

·          Cecum

·          Ascending, transverse, descending colon

·          Sigmoid, rectum, anal canal

·          Taenia coli

·          Haustra

·          Omental appendices/epiploic appendages

·          Mesocolon

·          Internal anal sphincter –

·          External anal sphincter – 

 

Liver

·          Lobes

·          Falciform ligament

·          Ligamentum teres/round

·          Sinusoids

·          Metabolic and Hematological regulation

·          Synthesis and secretion of bile

 

Gall Bladder

·          Lining

·          Store/concentrate bile

·          Hepatopancreatic sphincter and duct

·          If sphincter open/relaxed:

·          Hepatic ductcommon hepatic duct, cystic ductcommon bile ducthepatopancreatic duct

 

Pancreas

·          Retroperitoneal

·          Exocrine-

·          Endocrine –

·          islets of Langerhans

·          Pancreatic juice

·          Pancreatic duct hepatopancreatic ductduodenum

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