Stomach Digestion

Question 1

The stomach breaks down food __ & __

Answer 1

mechanically & chemically

Question 2

The stomach is a ___ capable of holding 2-4 liters of food & liquids

Answer 2

muscular sac

Question 3

Food is broken down by the __ __ __ of the stomach’s muscular walls

Answer 3

contracting churning movements

Question 4

The chemical breakdown of food is initiated by the hormone ___ which stimulates the secretion of __ & __ from glands lining the walls of the stomach

Answer 4

Gastrin
HCL & Pepsinogen

Question 5

___ is an inactive form of the protein digesting enzyme called pepsin

Answer 5

Pepsinogen

Question 6

It needs to be in Pepsinogen form in order to prevent it from ….

Answer 6

digesting the cells that produce it

Question 7

It’s the highly acidic environment that release ___ that converts pepsinogen into pepsin

Answer 7

HCL

Question 8

Once converted into pepsin, it breaks down into shorter amino acids chains called ___

Answer 8

peptides

Question 9

So the stomach lining isn’t digested itself by the HCL & Pepsin cells, these two produce a ___ that coats the stomach

Answer 9

very thick mucus

Question 10

The result of the mechanical and chemical processes in the stomach is a thick acidic liquid called ___

Answer 10

Chyme

Question 11

The __ __ propel the chyme toward the SI

Answer 11

peristaltic waves

Question 12

circular muscle at the base of the stomach

Answer 12

pyloric sphincter

Question 13

The pyloric sphincter allows a teaspoon of ___ into the SI with each wave

Answer 13

chyme

Question 14

Depending on the size of the meal it can take __ to __ hours to empty the stomach into the SI

Answer 14

2-6 hours