Mech digestion in esophagus and stomach

Question 1

what happens after the food is swallowed

Answer 1

the epiglottis closes the trachea (no chock)

food moves down the oesophagus via peristalsis

Question 2

Process of peristalsis

Answer 2

2 layers of muscular walls, smooth involuntary muscle
inner layer = circular muscle
outer layer = longitudinal
work antagonistically - to make peristaltic contractions
circular contracts (behind bolus) —> food moves down
longitudinal contracts (in front bolus) —> make oesophagus shorter and wider ahead of bolus

Question 3

What is the sphincter

Answer 3

Ring of smooth muscle that prevents food from going back up the oesphagus

Question 4

what happens to the peristaltic action as the food enters the stomach

Answer 4

It becomes vigorous

The food is broken down by it

Question 5

peristalsis moves food from

Answer 5

mouth to anus (entire alimentary canal)

Question 6

What does peristalsis aid in

Answer 6

Chem digest cos mix food with digestive juices

Question 7

What are the 2 layers of muscular walls made of?

Answer 7

smooth involuntary muscle

Question 8

What is the shape of the inner and outer layer of muscle

Answer 8

inner layer = circular muscle

outer layer = longitudinal

Question 9

What is the movement of peristalsis

Answer 9

work antagonistically - to make peristaltic contractions  
circular contracts (behind bolus) ---> food moves down 
longitudinal contracts (in front bolus) ---> make oesophagus shorter and wider ahead of bolus