Neural Regulation of Gastrointestinal Function Flashcards Preview

GI Exam 1 > Neural Regulation of Gastrointestinal Function > Flashcards

Flashcards in Neural Regulation of Gastrointestinal Function Deck (10):
1

What neurotransmitters are used for taste sensation?

ATP
Serotonin
Noradrenaline

2

What receptors do sweet/bitter/umami use?

G protein coupled receptors

3

What receptors do salty and sour use?

TRPM5 Ca2+-activated Na/K channel (transient receptor potential cation channel M5

4

What is the innervation of the tongue?

Front portion: CN 7
Back portion: CN 9

5

What does sympathetic stimulation cause in salivary secretions?

Thick mucous

6

What nerves are responsible for the swallowing reflex?

CN 9
CN 10

7

What affect do stretch receptors have on G cells?

Cause release of gastrin stimulating Chief and parietal cells

8

What role does the vagus play in stimulation of G cells?

Releases gastrin releasing peptide on G cells

9

What does too much gastric acid cause?

Release of Somatostatin to inhibit G cells

10

What is the affect of CCK on vagal fibers?

Causes an increase in Ach release