The Skin Content Practice B The Integumentary System LESSON 3

Name
Date
Class
Content Practice B
LESSON 3
The Skin
Directions: On each line, write the term that correctly completes each sentence.
The Integumentary System
The integumentary system consists of the skin, (1.)
nails. The skin is the body’s largest (2.)
, and
. It contains
(3.)
that allow sweat to escape and
(4.)
that enable us to detect temperatures and feel pain.
Blood vessels in the skin help release heat from the body when they
(5.)
. The three layers of the skin,
beginning with the top layer, are the (6.)
(7.)
, and the (8.)
, the
.
The skin can be injured in several ways. A(n) (9.)
(10.)
is a more serious injury, involving a break in
the skin and significant bleeding. Some of the worst harm to the skin is caused
by (11.)
(12.)
, of which there are three
, or levels, of damage.
Directions: Answer the following question on the lines provided.
13. Why does the body need vitamin D?
52
Structure and Movement
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occurs when blood vessels are broken by a bump or blow to the body. A deep