The Skeletal System Lesson Outline A. 1.

Name
Date
Class
Lesson Outline
LESSON 1
The Skeletal System
A. Functions of the Skeletal System
1. The
contains bones as well as other structures that
connect and protect your bones and that support other functions in the body.
2. Bones provide
for movements such as sitting up and
standing.
3. Bones can move because they are attached to
4. Bones
.
the brain, spinal cord, heart, lungs, and other
internal organs.
5. Another function of bones is to produce and
materials
that your body needs.
B. Structure of Bones
1. The hard, outer portion of bones is made of
bone
tissue.
2.
bone tissue has small holes that make the bone less
dense than compact bone.
3. The inside of most bones contains a soft tissue called
.
is a strong, flexible tissue that covers the ends of bones.
5.
is a membrane that surrounds bones. It
bones.
6. A baby’s
is made mostly of cartilage. As this grows, the
cartilage is gradually replaced by
.
C. Joints
1. A(n)
is where two or more bones meet.
2. Bones are connected to other bones by
3.
.
joints connect bones that do not move.
4. The body’s
joints allow for a wide range of motion.
D. Bone Injuries and Diseases
1. A broken bone is called a(n)
2.
10
.
is a disease in which joints become irritated or
inflamed, such as when cartilage in joints is damaged or wears away.
Structure and Movement
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
4.
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Lesson Outline continued
3. A common bone disease is
, which causes bones to
weaken and become brittle.
E. Healthy Bones
1. One of the best ways to keep bones healthy is to
2. A balanced
.
keeps bones healthy.
and vitamin D are especially important for strong
bones.
F. The Skeletal System and Homeostasis
1.
is an organism’s ability to maintain a stable internal
environment.
2. Because bones supply
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
to your nerves, muscles, and
heart, a healthy skeletal system is important in maintaining your body’s
homeostasis.
Structure and Movement
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