GI motility Flashcards
which vitamins are fat soluble?
DEAK
phases of GI activity
cephalic, gastric, intestinal, interdigestive (also Migrating Motor Complex)
phases of swallowing
oral, pharyngeal, esophageal
Afferent nerves controling swallowing
superior laryngeal, terminates in Nucleus of Tractus Solitarius in medulla
Post ganglionic neuron body locations for control of swallowing
Dorsal motor nucleus of vagus and nucleus ambiguus
central pattern generator location for swallowing
bilaterally in the medulary reticular formation
primary vs secondary peristalsis
primary is cns generated continuation of pharyngeal phase of swallowing via vagus nerve. Secondary is reflex activated by esophageal distension
where is the main storage part of stomach? mixing part?
proximal. Antrum.
hormone increasing gastric contraction? decreasing?
gastrin. secretin and CCK
which things move through stomach more slowly
lipids are slower than solids. solids are slower than liquids. Hyperosmolar sol’ns are also moved slowly
does peristalsis require ANS input
no
motor patter directed toward mixing in intestine
segmentation
shuttling
moving material in large bowel back and forth
MMC: how often? require ANS?
90 minutes. no
