Question

1. Entry of food into the stomach will cause which of the following responses? a. peristalsis...

1. Entry of food into the stomach will cause which of the following responses?

a. peristalsis in the small intestine

b. mass movements in the colon

c. none

d. relaxation of the muscularis of the stomach.

e. all

2. Which of the follwoing reflexes is most likely a short reflex?

a. inhibition of gut motility during stress

b. all

c. none

d. parasympathetic reflex of defecation

e. intrinsic reflex of defecation

Science   Anatomy-And-Physiology   
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Homework Answers

Answer #1

1st question- correct answer is option d

explanation- whenever food enters the stomach,it leads to stimulation of vagus nerve. Vagus nerve brings signal from brain which cause relaxation of stomach muscles in order to accumulate more food. This reflex is called vasovagal reflex.

2nd question- correct answer is option e.

explanation- short reflex are those reflex which are originated from within the gastrointestinal tract by special type of nervous system called enteric nervous system. Short reflexes of enteric nervous system regulate movement of food with in the tract and also respond to chemical changes. Thus intrinsic reflex of defecation is a type of short reflex.

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