Download Lesson 3 | The Skin

Name
Date
Class
Content Practice A
LESSON 3
The Skin
Directions: On the line before each definition, write the letter of the term that matches it correctly. Each term is
used only once.
1. skin, hair, nails, and sweat glands
2. structure that senses temperature and pain
3. substance produced in skin that is exposed to
sunlight
4. exit for sweat
5. outer layer of skin
6. area around broken blood vessels
7. component of sunlight
A.
B.
C.
D.
E.
F.
G.
H.
I.
pore
melanin
bruise
ultraviolet rays
epidermis
sensory receptor
fatty layer
vitamin D
integumentary system
8. dark pigment
9. innermost layer of skin
Directions: Answer each question on the lines provided.
10. What is the body’s largest organ?
Directions: Put a check mark on the line before each item that is part of the integumentary system.
1. hair
2. teeth
3. fingernails
4. skin
5. eyes
6. toenails
7. eyelashes
Name
Date
Class
Key Concept Builder
LESSON 3
The Skin
Key Concept What does the skin do?
Directions: On each line, write the term from the word bank that correctly completes each sentence. Some terms
may be used more than once or not at all.
dilation
heat
pain
pores
sensory receptors
sweat
temperature
textures
1. The skin contains many
salts
vitamin D
through which
and other kinds of waste are expelled from the body.
2. The skin also has many
that enable us to detect the
and
of objects and to
experience
.
3. When the skin is exposed to sunlight, it produces
4. The evaporation of
.
releases
from the body.
5. The
of blood vessels in the skin helps control body
.
Directions: The diagram below represents a cross section of the skin. Label this diagram by writing the correct
term for each layer on each line. Then list things that are found in that layer.
Name
Date
Class
Key Concept Builder
LESSON 3
The Skin
Key Concept How does the skin interact with other body systems?
Directions: On the line before each definition, write the letter of the term that matches it correctly. Terms may be
used more than once.
1. severed blood vessel
A. bruise
2. red discoloration
B. cut
3. blistering
C. first-degree burn
4. scab formation
D. second-degree burn
5. blue or purple discoloration
E. third-degree burn
6. charring
7. severe scarring
8. minor or moderate scarring
9. bleeding under the skin
10. wound requiring stitches