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UNIT 5: Structure and Function of Organisms, Part 2
The kidneys are bean-shaped organs that act as the main blood filters of the
body.
More than a quart of blood is cleaned every minute as blood passes
through the filtering structures of the kidneys. Tiny tubelike structures called
nephrons filter out waste materials and extra fluid from the blood. This liquid is
sent to the bladder to be stored until it is released as urine.
Figure 5.3. The Kidney
renal vein
renal artery
nephrons
Human Body Book
Following your teacher’s instructions, create a book about the functions of the
human body.
Title each diagram.
Describe in your book the functions of the system.
On the diagrams provided by
your teacher, label and color the following:
mouth—red
esophagus—blue
stomach—orange
smallintestine—brown
liver—green
largeintestine—yellow
kidneys—brown
urinarybladder—yellow
Lesson 1: Physical and Chemical Changes in Digestion
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