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Go Through The Tour
ORAL CAVITY
EPIGLOTTIS
LIVER
GALL
BLADDER
LARGE
INTESTINE
ANUS
Alimenary Canal
ESOPHAGUS
STOMACH
PANCREAS
SMALL
INTESTINE
RECTUM
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Amongst all the spectacle we can
see in a human oral cavity, aka
mouth, our tour will focus on the
following:
◆ Tongue
◆ Salivary Gland
◆ Teeth
◆ Pharynx
MECHANICAL DIGESTION
CHEMICAL DIGESTION
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Epiglottis is a flap of
tissue which prevents
food from entering the
air passage while
swallowing.
MECHANICAL DIGESTION
CHEMICAL DIGESTION
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Esophagus is the site ( a
tube) which connects the
pharynx to stomach.
Food is transferred in
esophagus due to
peristalsis ( contraction
of muscles).
MECHANICAL DIGESTION
CHEMICAL DIGESTION
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Stomach is an J-shaped organ of
abdominal cavity that is essential
to human. We will focus on the
following:
◆Cardiac
Sphincter
◆ Pyloric
Sphincter
◆ Stomach
MECHANICAL DIGESTION
CHEMICAL DIGESTION
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Liver is an essential organ of human body. It has
the following function:
1) Produce bile
2) Destroys old red blood cell and converts
hemoglobin to a product in bile
3) Stores glucose and glycogen after eating and
breaks down glycogen to glucose between
eating to help maintain glucose level of blood.
4) Produces urea from the breakdown of amino
acids
5) Makes blood proteins from amino acids
6) Detoxifies the blood by removing poisonous MECHANICAL DIGESTION
CHEMICAL DIGESTION
substances and metabolizing them.
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Pancreas produces digestive enzymes and sodium
bicarbonate to help digestion.
MECHANICAL DIGESTION
CHEMICAL DIGESTION
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Gall bladder stores bile. Bile is not an enzyme.
Bile functions to break down fat into fat droplets
by emulsification.
Emulsification is the procedure that breaks down
fats into fat droplets, emulsifiers such as bile can
cause fat to mix with water because of its special
structure of both a polar and nonpolar end.
The molecules positions themselves in the fat
droplets so that their nonpolar ends point inward
MECHANICAL DIGESTION
into droplet and the polar ends point outward.
CHEMICAL DIGESTION
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Intestines are part of lower
abdominal cavity. Intestines have
mesentery on their lining to protect
them. We would visit the following:
◆Duodenum
◆ Small
Intestine
◆ Large Intestine
MECHANICAL DIGESTION
CHEMICAL DIGESTION
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Appendix is where small intestine
and large intestine connects. No
known function to human.
MECHANICAL DIGESTION
CHEMICAL DIGESTION
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Rectum is the enlarged portion of
colon. It stores undigested food
temporarily.
MECHANICAL DIGESTION
CHEMICAL DIGESTION
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Anus is where undigested food
exists the body, The process is
known as elimination/defacation.
INQUIRE TO LIFE
CLASS NOTES (from Mr.Heard)
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