oesophagus Flashcards
1
Q
what are features of the tunica mucosa
A
Epithelium= stratified squamous non keratinized epithelium
Lamina propria= loose connective tissue, cardiac glands and lymph follicles
Muscularis mucosae= smooth muscle
2
Q
what are the features of the submucosa
A
eseophageal glands that lubricate mucosa
3
Q
What are the features of tunica muscularis
A
inner circulare and outer longitudinal
upper 1/4 is striated muscle then as you go down it it replaced by smooth muscle
4
Q
Is the outer layer adventitia or serosa
A
tunica adventitia=loose connective tissue with blood/lymph vessels and nerve plexus
5
Q
muscle action of swallowing
A
Swallowing begins with voluntary muscle action but finishes with involuntary peristalsis.
