Esophagus Lecture Flashcards
1
Q
T/F Occasional lymphoid nodules may be seen in mucosa of esophagus
A
T
In lamina propria
2
Q
Explain mixed gland placement in dog compared to other species
A
Dog=glands are present throughout entire esophagus
Other species=glands only in cranial part of esophagus
3
Q
Important secretory product in mixes gland
A
pepsinogen
lysozyme
mucous
4
Q
Explain muscularis externa layer in dogs/ruminants vs cats/horses vs humans/pigs
A
Dogs/ruminants= skeletal muscle throughout esophagus
Cats/horses=skeletal muscle cranial 2/3 and caudal 1/3 is smooth muscle
Humans/pigs= 1/3 skeleta, 1/3 skeletal + smooth, 1/3 smooth
5
Q
Longitudinal folds in esophagus
A
Rugae
- allows bolus to move
- circular muscle
