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Chapter 6: The Skeletal System
Skeletal System
Functions/
Compact and
Spongy Bone
Ossification
and
Remodeling/
Aging
Bone
Markings/
Skull/
Vertebrae
Pectoral and
Pelvic Girdles/
Upper and
Lower Limbs
Articulations
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Prepared by Frank J. Torrano, American River College
© 2013 Pearson Education, Inc.
FINAL ROUND
Skeletal System Functions/Compact and Spongy Bone:
$100 Question
Bones store energy reserves as ________ in
areas filled with ________.
a.
b.
c.
d.
lipids; red marrow
proteins; yellow marrow
lipids; yellow marrow
proteins; red marrow
ANSWER
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Skeletal System Functions/Compact and Spongy Bone:
$100 Answer
Bones store energy reserves as ________ in
areas filled with ________.
a.
b.
c.
d.
lipids; red marrow
proteins; yellow marrow
lipids; yellow marrow
proteins; red marrow
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Skeletal System Functions/Compact and Spongy Bone:
$200 Question
The humerus is an example of which bone
classification?
a.
b.
c.
d.
flat
short
irregular
long
ANSWER
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Skeletal System Functions/Compact and Spongy Bone:
$200 Answer
The humerus is an example of which bone
classification?
a.
b.
c.
d.
flat
short
irregular
long
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Skeletal System Functions/Compact and Spongy Bone:
$300 Question
The sheets of calcified matrix, in which small
pockets with osteocytes are found, are called
a.
b.
c.
d.
canaliculi.
lacunae.
trabeculae.
lamellae.
ANSWER
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Skeletal System Functions/Compact and Spongy Bone:
$300 Answer
The sheets of calcified matrix, in which small
pockets with osteocytes are found, are called
a.
b.
c.
d.
canaliculi.
lacunae.
trabeculae.
lamellae.
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Skeletal System Functions/Compact and Spongy Bone:
$400 Question
Which of the following structures link the blood
vessels of central canals with those of the
periosteum and marrow cavity?
a.
b.
c.
d.
trabeculae
perforating canals
canaliculi
lamellae
ANSWER
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Skeletal System Functions/Compact and Spongy Bone:
$400 Answer
Which of the following structures link the blood
vessels of central canals with those of the
periosteum and marrow cavity?
a.
b.
c.
d.
trabeculae
perforating canals
canaliculi
lamellae
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Skeletal System Functions/Compact and Spongy Bone:
$500 Question
Which cells secrete acids and enzymes that
dissolve the bony matrix through osteolysis?
a.
b.
c.
d.
osteoclasts
osteoblasts
osteoprogenitor cells
osteocytes
ANSWER
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Skeletal System Functions/Compact and Spongy Bone:
$500 Answer
Which cells secrete acids and enzymes that
dissolve the bony matrix through osteolysis?
a.
b.
c.
d.
osteoclasts
osteoblasts
osteoprogenitor cells
osteocytes
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Ossification and Remodeling/Aging:
$100 Question
Which of the following are most prone to
osteopenia?
a.
b.
c.
d.
epiphyses of long bones
diaphyses of long bones
mastoid processes
ribs
ANSWER
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Ossification and Remodeling/Aging:
$100 Answer
Which of the following are most prone to
osteopenia?
a.
b.
c.
d.
epiphyses of long bones
diaphyses of long bones
mastoid processes
ribs
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Ossification and Remodeling/Aging:
$200 Question
Neurons and muscle cells become relatively
unresponsive if calcium concentrations increase
by what percent?
a.
b.
c.
d.
15%
70%
30%
50%
ANSWER
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Ossification and Remodeling/Aging:
$200 Answer
Neurons and muscle cells become relatively
unresponsive if calcium concentrations increase
by what percent?
a.
b.
c.
d.
15%
70%
30%
50%
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Ossification and Remodeling/Aging:
$300 Question
A patient suffered a broken humerus in a bicycle
accident. The broken ends of the bone protruded
through the skin. This is known as a ________
fracture.
a.
b.
c.
d.
Pott's
Colles'
compound
simple
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ANSWER
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Ossification and Remodeling/Aging:
$300 Answer
A patient suffered a broken humerus in a bicycle
accident. The broken ends of the bone protruded
through the skin. This is known as a ________
fracture.
a.
b.
c.
d.
Pott's
Colles'
compound
simple
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Ossification and Remodeling/Aging:
$400 Question
Which of the following bones are formed by the
process of intramembranous ossification?
a.
b.
c.
d.
clavicles
os coxae
vertebrae
All of the answers are correct.
ANSWER
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Ossification and Remodeling/Aging:
$400 Answer
Which of the following bones are formed by the
process of intramembranous ossification?
a.
b.
c.
d.
clavicles
os coxae
vertebrae
All of the answers are correct.
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Ossification and Remodeling/Aging:
$500 Question
Rickets is a softening and bending of the bones
that occurs in children as a result of ________
deficiency.
a.
b.
c.
d.
vitamin C
vitamin A
magnesium
vitamin D3
ANSWER
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Ossification and Remodeling/Aging:
$500 Answer
Rickets is a softening and bending of the bones
that occurs in children as a result of ________
deficiency.
a.
b.
c.
d.
vitamin C
vitamin A
magnesium
vitamin D3
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Bone Markings/Skull/Vertebrae:
$100 Question
A narrow groove on bone is called a
a.
b.
c.
d.
fossa.
sulcus.
meatus.
line.
ANSWER
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Bone Markings/Skull/Vertebrae:
$100 Answer
A narrow groove on bone is called a
a.
b.
c.
d.
fossa.
sulcus.
meatus.
line.
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Bone Markings/Skull/Vertebrae:
$200 Question
The bones that form the roof and superior walls of
the cranium are the ________ bones.
a.
b.
c.
d.
temporal
maxillary
sphenoid
parietal
ANSWER
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Bone Markings/Skull/Vertebrae:
$200 Answer
The bones that form the roof and superior walls of
the cranium are the ________ bones.
a.
b.
c.
d.
temporal
maxillary
sphenoid
parietal
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Bone Markings/Skull/Vertebrae:
$300 Question
Which spinal curve develops with the ability of a
child to stand?
a.
b.
c.
d.
lumbar
thoracic
cervical
sacral
ANSWER
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Bone Markings/Skull/Vertebrae:
$300 Answer
Which spinal curve develops with the ability of a
child to stand?
a.
b.
c.
d.
lumbar
thoracic
cervical
sacral
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Bone Markings/Skull/Vertebrae:
$400 Question
Which vertebrae possess transverse foramina?
a.
b.
c.
d.
thoracic
sacral
cervical
lumbar
ANSWER
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Bone Markings/Skull/Vertebrae:
$400 Answer
Which vertebrae possess transverse foramina?
a.
b.
c.
d.
thoracic
sacral
cervical
lumbar
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Bone Markings/Skull/Vertebrae:
$500 Question
The structure which articulates with the clavicles
of the appendicular skeleton and with the
cartilages of the first pair of ribs is the
a.
b.
c.
d.
sternal body.
manubrium.
costal margin.
xiphoid process.
ANSWER
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Bone Markings/Skull/Vertebrae:
$500 Answer
The structure which articulates with the clavicles
of the appendicular skeleton and with the
cartilages of the first pair of ribs is the
a.
b.
c.
d.
sternal body.
manubrium.
costal margin.
xiphoid process.
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$100 Question
Which structure marks the attachment of powerful
muscles that pull the shaft of the femur toward
the midline (adduction)?
a.
b.
c.
d.
linea aspera
greater trochanter
lateral condyle
capitulum
ANSWER
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$100 Answer
Which structure marks the attachment of powerful
muscles that pull the shaft of the femur toward
the midline (adduction)?
a.
b.
c.
d.
linea aspera
greater trochanter
lateral condyle
capitulum
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$200 Question
The region of the humerus that corresponds to
the epiphyseal cartilage is the
a.
b.
c.
d.
head.
anatomical neck.
surgical neck.
greater tubercle.
ANSWER
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$200 Answer
The region of the humerus that corresponds to
the epiphyseal cartilage is the
a.
b.
c.
d.
head.
anatomical neck.
surgical neck.
greater tubercle.
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$300 Question
The ________ extends from the base of the
coronoid fossa anteriorly to the olecranon fossa
posteriorly.
a.
b.
c.
d.
trochlea
capitulum
greater tubercle
lesser tubercle
ANSWER
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$300 Answer
The ________ extends from the base of the
coronoid fossa anteriorly to the olecranon fossa
posteriorly.
a.
b.
c.
d.
trochlea
capitulum
greater tubercle
lesser tubercle
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$400 Question
The only direct connections between the pectoral
girdle and axial skeleton are the
a.
b.
c.
d.
clavicles.
scapulae.
ribs.
coxal bones.
ANSWER
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$400 Answer
The only direct connections between the pectoral
girdle and axial skeleton are the
a.
b.
c.
d.
clavicles.
scapulae.
ribs.
coxal bones.
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$500 Question
Which of the following consists of an articulation
between the axial skeleton and a coxal bone?
a.
b.
c.
d.
acetabulum
obturator foramen
pubic symphysis
sacroiliac joint
ANSWER
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Pectoral and Pelvic Girdles/Upper and Lower Limbs:
$500 Answer
Which of the following consists of an articulation
between the axial skeleton and a coxal bone?
a.
b.
c.
d.
acetabulum
obturator foramen
pubic symphysis
sacroiliac joint
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Articulations:
$100 Question
Slightly movable joints are known as
a.
b.
c.
d.
synarthroses.
amphiarthroses.
diarthroses.
synovial.
ANSWER
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Articulations:
$100 Answer
Slightly movable joints are known as
a.
b.
c.
d.
synarthroses.
amphiarthroses.
diarthroses.
synovial.
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Articulations:
$200 Question
Structurally, epiphyseal cartilages are known as
a.
b.
c.
d.
synchondroses.
gomphoses.
syndesmoses.
symphyses.
ANSWER
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Articulations:
$200 Answer
Structurally, epiphyseal cartilages are known as
a.
b.
c.
d.
synchondroses.
gomphoses.
syndesmoses.
symphyses.
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Articulations:
$300 Question
Opening of the mouth is also called ________ of
the mandible.
a.
b.
c.
d.
dorsiflexion
depression
elevation
eversion
ANSWER
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Articulations:
$300 Answer
Opening of the mouth is also called ________ of
the mandible.
a.
b.
c.
d.
dorsiflexion
depression
elevation
eversion
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Articulations:
$400 Question
Functionally, the joint between the atlas and the
axis is a(n) ________ joint.
a.
b.
c.
d.
saddle
pivot
ellipsoidal
gliding
ANSWER
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Articulations:
$400 Answer
Functionally, the joint between the atlas and the
axis is a(n) ________ joint.
a.
b.
c.
d.
saddle
pivot
ellipsoidal
gliding
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Articulations:
$500 Question
Which ligaments are located inside the capsule of
the knee joint?
a.
b.
c.
d.
anterior cruciate
posterior cruciate
tibial collateral
anterior and posterior cruciate
ANSWER
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Articulations:
$500 Answer
Which ligaments are located inside the capsule of
the knee joint?
a.
b.
c.
d.
anterior cruciate
posterior cruciate
tibial collateral
anterior and posterior cruciate
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FINAL ROUND Question
Which is the correct order of events in endochondral ossification?
1 - The bone of the shaft thickens, and the cartilage near each epiphysis is
replaced by shafts of bone.
2 - Blood vessels penetrate the cartilage. New osteoblasts form a primary
ossification center.
3 - Chondrocytes at the center of the growing cartilage model enlarge and
then die as the matrix calcifies.
4 - Blood vessels invade the epiphyses and osteoblasts form secondary
centers of ossification.
5 - Newly derived osteoblasts cover the shaft of the cartilage in a thin layer of
bone.
a.
b.
c.
d.
4-3-1-2-5
3-5-2-1-4
5-3-2-4-1
3-5-2-4-1
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ANSWER
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FINAL ROUND Answer
Which is the correct order of events in endochondral ossification?
1 - The bone of the shaft thickens, and the cartilage near each epiphysis is
replaced by shafts of bone.
2 - Blood vessels penetrate the cartilage. New osteoblasts form a primary
ossification center.
3 - Chondrocytes at the center of the growing cartilage model enlarge and
then die as the matrix calcifies.
4 - Blood vessels invade the epiphyses and osteoblasts form secondary
centers of ossification.
5 - Newly derived osteoblasts cover the shaft of the cartilage in a thin layer of
bone.
a.
b.
c.
d.
4-3-1-2-5
3-5-2-1-4
5-3-2-4-1
3-5-2-4-1
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