Digestive System

Digestive System Objectives: Discuss the general functions and anatomy of the digestive tract Describe the individual organs of the system, including a discussion of the gross and microscopic anatomy.

Digestive System Muscular, hollow tube (= “digestive tract”) + Various accessory organs consists of:

Function ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],The function of the system as a whole is processing food in such a way that high energy molecules can be absorbed and residues eliminated. Individual parts function in:

Histological Organization ,[object Object],[object Object],Muscularis externa 1 2 3 4

The 4 Layers of the Gut ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Membranes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Oral Cavity ,[object Object],[object Object],[object Object],[object Object],[object Object]

Three pairs of Salivary Glands ,[object Object],[object Object],[object Object],[object Object],1-1.5 l / day for digestion (?) lubrication (swallowing) moistening (tasting)

Structure of Teeth ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Types and Numbers of Teeth Dental succession Deciduous (baby, milk) teeth - 20, replaced by Permanent teeth - 32 teeth

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Gross Anatomy of the Stomach

Histology of Stomach ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Regions of Small Intestine ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Structure of Small Intestinal Wall

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Regions of Large Intestine Fig 25-17 Rectum – terminal end is anal canal - ending at the anus - which has internal involuntary sphincter and external voluntary sphincter

Rectum and Anus ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Histology of Large Intestine

Liver ,[object Object],[object Object],[object Object],[object Object],[object Object],Microscopic anatomy: Liver lobules and triads

Liver ,[object Object],[object Object],[object Object]

Liver, cont’d ,[object Object],[object Object],[object Object]

Microscopic anatomy: Liver lobules and portal triads ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],See Fig 22.23

Gall Bladder ,[object Object],[object Object],[object Object],[object Object],Gall Stones

Pancreas ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pancreas ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Digestive System

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to Digestive System

Similar to Digestive System (20)

More from raj kumar

More from raj kumar (20)

Recently uploaded

Recently uploaded (20)

Digestive System

Editor's Notes