KIN 211
Chapter 3: Digestion
Carbohydrates

Digestion of carbohydrate begins in the
mouth, with the secretion of the enzyme
salivary amylase from the serous cells of the
salivary gland. This enzyme breaks starch
and glycogen into disaccharides.
Carbohydrates


The salivary glands are grouped into three
categories: the parotid gland, submandibular
glands, and sublingual, all located near the
mouth.
As the food is swallowed, it moves into the
esophagus (a straight collapsible tube), which
essentially provides a passageway from the
pharynx to the stomach.
Carbohydrates

The Peristalsis is responsible
for pushing the food into
the next organ.
Cardiac Sphincter

The bolus passes through the cardiac
sphincter, into the first section of the stomach.
Regions of the Stomach

The stomach is divided into several regions:
the cardiac region, body region, fundic region,
and pyloric region.
Stomach

The stomach works to mix and churn the
food, which aids in further digestion of
carbohydrates. At this point, the bolus is
converted into a semifluid paste of bolus and
gastric juices called chyme.
Chyme through Pyloric Sphincter

The chyme then travels through the pyloric
sphincter into the first section of the small
intestines.