Histology of the Alimentary System Flashcards
Define a tissue
A group of cells that work together to perform the same function
Define an organ
An organ is something that is made up of two or more types of tissue
Name the 4 basic types of tissue
Epithelial tissue
Connective tissue
Muscle Tissue
Nervous Tissue
What type of epithelium is found within the oesophagus ?
Stratified squamous non-keratinised epithelium
What is found within the submucosa of the oesophagus ?
Mucous Glands
What kind of muscle is found in the upper 1/3 of the oesophagus ?
Skeletal muscle
What kind of muscle is found in the middle 1/3 of the oesophagus ?
smooth and skeletal muscle
What kind of muscle is found within the lower 1/3 of the oesophagus?
Smooth muscle
What kind of epithelium is found within the stomach ?
Simple columnar epithelium
What type of gland is found within the submucosa of the stomach ?
Gastric Gland
What cells within the stomach turn pink when staining and what is their function ?
Parietal cells; secrete HCl
Where are cheif cells found histologically within the stomach ?
At the base of the gastric glands ?
What are villi ?
Finger-like projections that increase the surface area of the small intestine
What is found between the villi in the small intestine ?
Crypts of Lieberkuhn
What is a peyer’s patch and where are they more commonly found ?
Lymphoid aggregations in the mucosa; small intestine
