Upper GIT Flashcards
1
Q
What happens in the voluntary phase of swallowing?
A
larynx up, glottis closed, bolus formation and movement.
2
Q
What happens in the pharyngeal phase of swallowing?
A
Pharyngeal phase- soft palate close nasopharygeal, inhibition of respiration
3
Q
what happens in the oesophageal phase of swallowing?
A
oropharyngeal phase- epiglottis opens, peristaltic wave
4
Q
What proportion of the oesophagus is striated muscle?
A
first 1/3 rd
5
Q
Which proportion of the oesophagus is smooth muscle?
A
lower 2/3 rds
