Canine GI Tract

Question 1

Describe the width of the oesophagus and how its position changes caudally

Answer 1

-wide and dilatable
-cervical part follows trachea dorsally
-inclines towards the left
-regains a median position caudally

Question 2

Where does the oesophagus join the stomach?

Answer 2

Ventral to the 11th or 12th thoracic vertebrae

Question 3

Where are the submucosal glands? What type of glands are they mostly?

Answer 3

-In the mid region of the oesophagus
-Mucous glands

Question 4

What type of epithelium lines the oesophagus?

Answer 4

Stratified squamous epithelim

Question 5

Describe the shape of the stomach. What side of the abdomen does it lie on?

Answer 5

-C shaped
-Left

Question 6

Where are the gastric glands located? What do they produce?

Answer 6

-The lamina propria
-Gastric juices

Question 7

What structures are present in the mucosa? What are their purpose?

Answer 7

-Folds known as rugae
-Increase surface area

Question 8

What does the tunica submucosa contain?

Answer 8

Meissner’s plexuses