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Flashcards in 102b Upper GI Deck (11):
1

what separates the oropharynx from the nasopharynx? larynogopharynx and oropharynx?
laryngopharynx and esophagus?

soft palate
top of epiglottis
laryngeal cartilage

2

histology of pharynx and esophagus?

nonkeratinized stratified squamous epithelium

3

what does the nasal and oral cavities develop from? phyranx, airway, esophagus?

stomodeum
foregut

4

layers of the gut wall (in to out)

(MSMS)
Mucosa
Submucosa (glands, ct, and Meissner's plexus)
Muscularis externa (Auerbach's plexus for peristalsis)
Serosa/Adventitia

5

features of the small intestine

villi and plica

6

features of the large intestine

smooth surface and crypts (tubular glands)

7

parts of the mucosa layer

simple columnar epithelium - absorption
lamina propria - support (loose ct)
muscularis musosae - motility (smooth muscle)
glands and lymphatic tissue

8

sublingual vs parotid vs submandibular glands

sublingual are mostly mucous (lighter stain)
parotid are serous (darker stain)
submandibular have both

9

tonsils - what are they and where?

what - aggregations of lymphatic nodules
1) pharyngeal (adenoids) - roof of nasopharynx
2) palatine (w/ crypts) - back of mouth/oropharynx?
3) lingual - on pharynx part of tongue

10

type of muscle in esophagus?

top 1/3 - striated
middle 1/3 - mixed
bottom 1/3 - smooth

11

esophagus - innervation

visceral sensory and parasympathetics - vagus nerve (recurrent laryngeal nerves for striated muscle)
sympathetic/splanchnic for arteries