BELL RINGER
Once
the lower body skeletal
system quiz is handed to you,
please begin working.
 Label
the lower body skeletal system
using the medical names. Do the best
you can with spelling – It needs to be
close enough that I can tell that you
know the right medical name
 When finished, make sure your name is
on the paper and place it in the black
bin.
PROBLEMS WITH THE
SKELETAL SYSTEM
About the Skeletal System cont.
OBJECTIVES
 Content
Objective: The students will be able
to identify and define problems with the
skeletal system through partner discussion and
completing notes.
 Language
Objective: The students will be
able to apply the definition of the prefix
“osteo” to various words in order to
discover their meaning.
REVIEW
1.
What does the prefix “osteo” mean
2.
Which type of joint allows for the greatest
freedom of movement?
3.
What does the word ossification refer to?
4.
What are the four main functions of the
skeletal system?
5.
Where is cartilage located in your body?
TYPES OF JOINTS - REVIEW




Ball and Socket

What movement does it allow?

Where is it located in the body?
Hinge Joint

What movement does it allow?

Where is it located in the body
Gliding Joint

What movement does it allow?

Where is it located in the body?
Fixed Joint

What movement does it allow?

Where is it located in the body?
PROBLEMS WITH THE SKELETAL SYSTEM
 Osteoporosis
 Rickets

Bowed-Legs
 Fractures

Complete

Compound

Stress
 Osteoarthritis
OSTEOPOROSIS
What does the prefix osteo mean? Due to this prefix
we know the term osteoporosis has to do with what?

Osteo = Bone
What does the word porosis mean or sound like?
 Porosis
= Porous condition
OSTEOPOROSIS
 Causes
bones to become weak and brittle

Brittle to the point that a simple fall, cough or bending
over can cause a fracture

Most frequent injures occur in the hip, wrist or spine
 Caused
when the creation of bone does not
keep up with absorption of bone
 What
cell creates bone?
 What
cell absorbs bone?

Frequently Occurs in Older Women past Menopause
RICKETS
 Caused
by lack of Vitamin D,
calcium or phosphate causing
the weakening and softening
of bones
 Rickets
can be caused by your
genes, kidney disorder, disorders
of the liver
 Rare
in the United States but can
occur when children are rapidly
growing
BOWED-LEGS
 Common
in toddler
 Looks
Like – When feet together there is a
distinct space between knees and lower
legs
 Cause
– Either one or both legs curve
outward

The bowing is typically corrected by age 3 or 4
Fractures
FRACTURES
Occur when a physical force exerted on a bone is stronger than
the bone
COMPLETE FRACTURE
 The
bone is fractured
completely across
COMPOUND FRACTURE
Open
fracture where
there is a break in the
skin around the bone
 The
outside air, dirt must
be able to get to the
fracture for it to be a
compound
STRESS FRACTURES
 Tiny
cracks in the bones
 Caused
by repetitive
application of force
 Typically
overuse injury
 Example:
Runners get stress
fractures in tibia
 Also
caused from osteoporosis
OSTEOARTHRITIS
 Most
common form of arthritis
 Wear
and tear arthritis
 Cause
– Protective cartilage on
the ends of bones wears down
over time
 Most
Common: Hands, neck,
knees, hips, lower back
RIBS – TRUE, FALSE AND FLOATING
True Ribs – One of the first 7 pairs of ribs which attach to the sternum
False Ribs – The lower 4 pairs of ribs that do not directly connect to the sternum
• The last 2 pairs of false ribs are not attached and called the floating ribs
DIFFICULT WORDS MADE EASY
WORKSHEET
Write
the medical name from the word
bank next to the common bone name
 When
finished turn your paper over and
review your completed skeleton
SKELETON PROJECT DIRECTIONS
 You
may work alone or in a group of NO MORE
than 3

Reminder: If you work in a group, participation points
can be deducted at any time that you or your group
are off task so make a responsible decision with who
you work with
 You
will not be able to use any of your notes during
class time, but you may study them after class as we
will be working on this project for a couple class
periods
DIRECTIONS
1.
You will cut out and color the bones that make up the human body.
2.
After all bones are colored and cut, you will assemble the skeleton
inside of a manila folder (gluing the bones to the folder in their correct
anatomical position)

3.
Prior to gluing the bones down lay them all out to make sure they all fit
and you have right and left in the correct places
Once all bones are laid down, you will label each of the bones with
their medical and common name (if it has a common name)

In addition to labeling everything we labeled on the skeleton we completed in
class, you will need to label the teeth, false ribs, true ribs and floating ribs.
 Once
all parts of your skeleton are labeled with the medical name and
the common name, you will circle and label the 4 joints discussed in
class (Ball & Socket, Hinge, gliding, and fixed)
DIRECTIONS CONTINUED
 Once
your skeleton is completely labeled, you will
write (using complete sentences) the four functions of
the skeletal system and one way that they
demonstrate that function.

What are some examples?
 Finally,
you will write in complete sentences) four
problems with the skeletal system and identify what
that problem means.

What are some examples from class today?

Grading: 55 Points

45 Points – For accurately labeling and assembling all bones as well
as completing the function and problem bubbles.

10 Points – For participating with your group and completing the
reflection.