Completion
Complete each sentence or
statement.
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1.
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The
__________ __________ is the group of organs that work together to break down food so that it
can be used by the body.
The following drawing illustrates the Human Digestive
System.
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2.
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Digestion begins as soon as food enters the ________.
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3.
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The
function of teeth in this digestive process is to:
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4.
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The
type of digestion performed by the teeth is referred to as ____________ digestion.
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5.
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The
purpose of saliva is to:
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6.
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The
type of digestion started by saliva is referred to as ___________ digestion.
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7.
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The
_____________ is a long tube that connects the mouth to the stomach.
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8.
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The
_________ is a muscular organ that continues physical digestion by squeezing its contents with
muscular contractions.
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9.
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_______ in the stomach produce _________ and ________ that further break food into
nutrients.
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10.
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After
a few hours within the stomach, the food becomes a soupy mixture called _______.
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11.
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The
______ ________ (a long, muscular tube) receives the chyme from the stomach to continue
the digestive process.
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12.
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Most
_________ digestion takes place in the small intestine.
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13.
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_______ are small fingerlike projections that line the inside of the small
intestine.
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14.
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The
purpose of the villi is to:
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15.
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Chemicals containing digestive enzymes and bicarbonate flow from the
___________.
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16.
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The
purpose of the bicarbonate produced by the pancreas is to:
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17.
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If
the chyme was not neutralized by the bicarbonate then the acid would:
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18.
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The
______ is another organ that helps with digestion.
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19.
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The
liver makes a liquid called ____ that is used to digest fat.
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20.
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The
liver has additional functions such as:
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21.
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Bile
produced by the liver is temporarily stored in the ____________.
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22.
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The
______ _________ receives whatever cannot be absorbed from the chyme into the
blood.
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23.
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The
large intestine ______, ________ and ________ material that cannot be digested.
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24.
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Most
of the remaining water is reabsorbed, changing the soupy mixture into a solid mass called
_______.
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25.
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The
last section of the large intestine is called the _________.
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26.
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Additional waste products must be removed from the blood through
___________.
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27.
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___________ is the process through which toxic chemicals, excess water, salts, and
carbon dioxide are removed from the body.
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28.
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Several different organs are involved in excretion. One is the ___________
________ where blood carries waste materials to the lungs.
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29.
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The
_______ allow the waste materials in the blood to be removed, such as carbon dioxide and some water
vapor
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30.
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The
_____ is also involved in excretion because water, salts, and other wastes are removed through the
skin in sweat.
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31.
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The
__________ are important organs of excretion.
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32.
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Blood
carrying wastes from the body's cells passes through tiny filters in the kidneys, called
________.
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33.
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The
cleaned blood leaves each kidney and recirculates in the body. The yellow fluid that remains in the
nephron is called _______.
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34.
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Urine
leave each kidney through a tube called a _______ and is stored in the urinary bladder.
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35.
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Most
chemical digestion takes place in the _______ __________.
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