318. Esophagus Flashcards
1
Q
Mc Congenital anomaly of the esophagus
And its most common form
A
Esophageal atresia
Type A - upper esophagus in a blind pouch, TEF is connected to distal esophagus (87%)
2
Q
Length of esophagus at birth
A
8 to 10 cm
Doubles at 2-3yo
25cm in adult
3
Q
Swallowing in utero starts at what Aog?
A
16-20 wks aog
4
Q
Location of UES
A
Cricopharyngeus muscle
5
Q
Location of LES
A
At the GEJ
6
Q
Layers of the esophageal wall
A
Nonkeratinized stratified squamous epith Lamina propria Muscularis mucosa Submucosa Muscularis propria (2)
7
Q
Facial stimulation by a puff of air can induce swallowing in healthy young Infants.
What is this reflex
A
Santmyer swallow
8
Q
Normal esophageal peristaltic speed
A
3 cm/sec
9
Q
Major mechanism in pathologic reflux
A
Transient LES relaxation
10
Q
Mc esophageal disorder in children
A
Gerd
