Lopez: Esophagus Flashcards
layers of esophagus
- Mucosa
- submucosa
- muscularis propria
- adventitia or serosa
esophageal region locations
C6-T10
UES location
C6
LES location
T10
muscle lining top 1/3 of esophagus
striated m.
muscle lining middle 1/3 of esophagus
striated + SMC
muscle lining bottom 1/3 of esophagus
SMC
outer layer of esophagus name in thoracic cavity
adventitia
outer layer of esophagus name in abd cavity
serosa
squamocolumnar junction aka
Z line
3 layers of mucosa of esophagus
- epithelium
- lamina propria
- muscularis mucosae
esophageal mucosa consists of
stratified squamous epithelium
voluntary
CN V, VII, IX, X, XII
oral phase of swallowing
muscles of mastication innervated by what nerve
CN V (trigeminal)
involuntary
move bolus through
soft palate elevation
CN IX (sensory)
CN X (motor)
pharyngeal phase of swallowing
involuntary
peristalsis moves bolus
CN X and myenteric plexus
esophageal phase of swallowing
pressure increases or decreases down digestive tract during peristalsis
increases
beginning with dysphagia to solids followed by dysphagia to liquids
progressive dysphagia
backflow of gastric contents into the esophagus
GERD
pathophysiology of GERD
permanent relaxation of LES (reflux of contents into esophagus)
risk factors of this include:
smoking, caffeine, chocolate, alcohol, stress, obesity, pregnancy
GERD
pt presents with heartburn, cough, and hoarseness in the morning
GERD
gold standard to dx GERD
24-hour pH monitoring
GERD can lead to
reflux esophagitis
reflux esophagitis
intraepithelial eosinophils seen
reflux esophagitis
inflammation of the esophagus
Esophagitis
Esophageal candidiasis
Herpes esophagitis
ulcers w/ raised edge in distal esophagus
multinucleated cells
Cowdry A inclusions
Herpes esophagitis
Cytomegalovirus
“owl eyes” cowdry B cells
ulcers in upper esophagus
CMV
infectious esophagitis is mainly seen in what kind of patients
immunocompromised
young adults and children w/ dysphagia and atopic disease
Eosinophilic Esophagitis
endoscope dx
Eosinophilic Esophagitis
Eosinophilic Esophagitis
NSAIDs, tetracycline, doxycycline and iron supplements, and KCl can cause this
pill-esophagitis
damage to esophageal mucosa caused by radiation therapy
radiation esophagitis