test 3 Flashcards
4 functions of the immune system
ingestion
digestion
absorption
egestion
digestion
Starts in the mouth
Ends in the anus
Food can be broken down mechanically
(chewing) and chemically (with enzymes)
to be digested (broken down).
Absorption
Digested food into the bloodstream
through the walls of the small intestine.
Cells burn the energy in the presence of
oxygen to release stored energy within
the food.
Cells also use larger proteins to help build
larger protein molecules needed for
growth and development.
elimination
the digestive system gets rid of materials that cannot be used by the body via elimination. the large intestine concentrates these feces, then they exit the body through the anus
uvula
The uvula is the small tissue projection that
hangs from the soft palate (hangy ball)
The uvula helps with the production of the
sounds of speech.
ruage
Ruage are the bumps on the top of
the hard palate.
tongue
The tongue covers the floor of the oral cavity,
aids in moving the food during mastication
(chewing) and deglutition (swallowing).
papillae
Papillae, small raised bumps on the tongue,
contains taste buds.
Sensitive to food chemicals and allow
discrimination of different tastes as the food
moves across the tongue.
salivary glands
Produce Saliva, that
contain digestive
enzymes.
Saliva is released from the
parotid gland,
submandibular gland and
sublingual gland on EACH
side of the mouth.
Components of the
Digestive System
Esophagus
Stomach
Small Intestine
Large Intestine
Gall bladder
Liver
Pancreas
Esophagus
the tube that connects your
mouth and your stomach
Esophagus is
Muscular tube
9-10 inches from the pharynx to the
stomach
Peristalsis
contraction of muscles in the esophagus
bolus is
mass of food
food passage
oral cavity
pharnyx
esophagus
stomach
samll intestine
large intestine
liver
stomach
A stretchy bag that holds your food
after you eat, helps break your food down into smaller pieces
sphincters
Rings of muscles that Control the opening and
closing of the stomach
Lower esophageal
sphincter
relaxes and
contracts to move food
from the esophagus to the stomach
Pyloric sphincter
allows
food to move from the
stomach to the intestine.
small intestine
20 feet from the pyloric sphincter to the
first part of the large intestine.
3 parts of the small intestine
DUODENUM
- JEJUNUM
- ILEUM
large intestine
Receives the fluid waste from digestion
(the material that is unable to pass into the
bloodstream).
gall bladder
Storage tank for bile (a greenish-yellow
liquid) that helps your body break down
and use fats
Located under your liver
Shaped like a pear
liver
Factory for antibodies and bile
Stores vitamins and sugars until your body
needs them
realases bilibrium which gives bill its brown colour
Pancreas
Helps you digest
food by breaking
down sugars
