Bones, Muscles, and
The
SB<eBeteE
Skin
"
Guided Reading and Study
Systesm
ffi
@p. aaa-as1)
This section describes the s'keletal system and its furtctiort.
your bones strong andhealthY.
It
also tells how to lceep
Use Target Reading Str<il[s
organizer below, ask a
Before you read, preaiera the recl headings. ln the graphic
questions'
what or ahow question for each headiig. As you read, answer your
The Skeletal SYstem
What the Skeletal System D@as (pp' aaa-aa6)
1,. List the five major functions
of the skeleton'
a.
b.
c.
d.
e.
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Peorson Educoiion, lnc., publishing os Peotson
1R3
Name
:
l
Bones, Muscles, and
Skin
'
Guidqd Reading and Study
The Skeletal SYsterm kontinued)
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2.
up the center of the skeleton''
Circle the 1etter of the bone that makes
a. skull
b.Pelvic girdle
:,
c. backbone
d. femur
3.
4.
the backbone are the
The 26 small bones that make up
move?
How does the skeleton help the body
5.
the brain'
Circle the letter of the bone that protects
a. backbone
b. Pelvic girdle
c. ribs
d. skull
6.
make
The longbones of the arms and legs
Joints of the Skeletori (pp' aa6-aa7)
7.
\Atrhat is a
8.
the body?
What are the two kinds of ioints in
b.
a.
joint?
together by immovable joints'
Circle the letter of bones that are held
a. knee
b. ankle
c. skull
d.
wrist
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Bones, Muscles, and
-
Class
Date
Name
Skin
'
Guided Reading and Study
tO. Compiete the table to show the four types of movable joints.
Movable joints
I(ind of Motion
|oint
Where It's Found in the Body
Hinge
Bali-and-socket
Pivot
Gliding
L1. The bones in movable joints are held together by strong connective
tissues cailed
'Eomes-Stnomg and Livil'lg (pp. 448-4s0)
12. Circle the letter of each sentence that is true about bones.
a. Bones are very strong and lightweight.
b. Concrete can absorb more force without breaking than bone can'
c. Bones make uP over half of an adult's body weight'
d. Bones are hard because they contain minerals'
13. When do bone celis form new bone tissue?
r
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1RE
CIass
Date
Name
Bones, Muscles, and Skin
.
Guided Reading and StudY
,?l
4
.:1
.]:1
The
S$qeEetaB
SYstem
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kontim'rcd)
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14. Label the parts of the bone in the diagram beiow'
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n#,:li
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Match each part of
a
bone with its characteristics'
eI
Characteristics
Bone Parts
1-5.
Brl
a. Where blood vessels and nerves enter
marrow
16. outer membrane
L7. cornPact bone
L8. spongYbone
and leave the bone
b.
EI
Has small canals with blood vessels
running through
c. Strong, but tightweight because it has
many small sPaces within
d. Soft corurective
it
tissue in the sPaces inbone
19. Is the following statement true or false? Cartilage is a type of connective
tissue that is more flexible than bone'
20. Circle the letter of each sentence that is true about how bones form'
a. Much of an infant's skeleton is bone'
with hard bone tissue'
b. As the body grows, the cartilage in the skeleton is replaced
beenreplaced with bone'
c. By the ti*" tfiu Uody stops groirirlg, all of the-cartilage has
an adult.
d. Cartilage covers the ends of *rtty bones in the body of
Ta$<img
€are of Voun Bones (pp. a50-a51)
21. What can you do to keep your bones healthy?
22. Acondition in which the body's bones become weak and break easily is
called
o
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186
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