Georgia Science Grade 7

Chapter 17: Structure and Movement

Structure and Movement

1
Where would you find a hinge joint in your body?
A)your hips
B)your fingers
C)your shoulders
D)your wrists
2
The outer layer of skin is called the__________.
A)glands
B)perspiration
C)pigment
D)epidermis
3
__________ can be used to repair severely burned skin.
A)Phosphorus
B)Pivot joints
C)Grafts
D)Periosteum
4
One function of your skin is to make __________.
A)vitamin D
B)bile
C)energy
D)bone marrow
5
Food moves through your digestive system. What type of muscle makes this action happen?
A)involuntary muscles
B)cardiac muscles
C)skeletal muscles
D)voluntary muscles
6
Which of these is the strong, hard layer under the periosteum?
A)marrow
B)voluntary muscle
C)epidermis
D)compact bone
7
What is the skin's most important function?
A)excretion
B)circulation
C)protection
D)color
8
Exercised muscles are __________ than inactive muscles.
A)less striated
B)larger
C)smaller
D)more voluntary
9
Two or more bones come together at __________.
A)pores
B)melanin
C)joints
D)flexors
10
Bones protect your __________.
A)hair
B)internal organs
C)sense of smell
D)skin
11
What type of muscle is found in your intestines?
A)smooth muscle
B)striated muscle
C)skeletal muscle
D)voluntary muscle
12
Which two elements help make bones hard?
A)hydrogen and oxygen
B)calcium and phosphorus
C)sodium and chlorine
D)nitrogen and helium
13
Joints in the bones of your skull are __________.
A)gliding
B)striated
C)spongy
D)immovable
14
__________ makes movement easier by reducing friction that might happen if bones rubbed together.
A)Red marrow
B)Cartilage
C)Periosteum
D)Hinge joints
15
About how many bones does the human body have at birth?
A)206
B)506
C)300
D)94
16
What stops blood from flowing out of a cut?
A)hemoglobin
B)a clot
C)osteoblasts
D)smooth muscles
17
__________ release waste products from the body.
A)Spongy bones
B)Sweat glands
C)Skeletal muscles
D)Cartilages
18
Where are dead skin cells found?
A)in immovable joints
B)in the red marrow
C)in the periosteum
D)in the epidermis
19
About how many muscles are in your body?
A)4
B)600
C)206
D)5,000
20
The tight-fitting membrane on the surface of living bone is called the__________.
A)periosteum
B)dermis
C)ligament
D)tendon
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