swallowing

Question 1

if you lose fxn of the suprahyoid muscles, where will your problem in swallowing be

Answer 1

the cricopharyngeal sphincter

Question 2

what are the anterior attachements of each of the constrictors

Answer 2

buccinator, hyoid, thyroid

Question 3

where does food normally travel down the throat

Answer 3

through the piriform sinuses, around the epiglottis

Question 4

oral preparation

Answer 4

reduces food to consistency to swallow (bolus formation); pleasure; soft palate moves anteriorly

Question 5

oral stage

Answer 5

sequential contraction of tongue propels bolus

Question 6

difference between triggering in young and old ppl

Answer 6

young ppl have an earlier trigger

Question 7

pharyngeal stage

Answer 7

pressure generation (by tongue base), laryngeal valve, bolus exerts pressure as it enters sphincter

Question 8

what causes lower sphincter (cricopharyngeal) to open?

Answer 8

mechanical pulling from upper sphincter (velopharyngeal)

Question 9

what are the 4 stages and what controls them

Answer 9

oral prep and oral are voluntary, pharyngeal and esophageal are brainstem controlled