The Musculoskeletal System under the Unit HUMAN BODY ~now active with hyperlinks. Please note that this presentation will be more appreciated if your computer is under Microsoft 2013. Kindly consider the compatibility for more convenient and pleasing slides.

2. TSYS ME

3. Organ
system that gives
humans the ability
to move using
their muscular and
skeletal systems

4. Skeletal
Muscular
Joints, ligaments
and tendons
The Musculoskeletal System

5. Skeletal
BONES
Structure
Functions

6. The bones are what gives
the body shape.
Bones support our
bodies.
 Babies have
more than 300
bones and
adults have 206
bones.

7. Underneath your skin
there are 5 types of
bones in the human body.
These are . . .
Long
Bones
Short
Bones
Flat
Bones
Irregular
Bones
Sesamoid
Bones

8. Long
Bones
Includes having a body
which is longer than it is
wide.
They are usually somewhat
curved for strength.
The femur -
a long bone
Tibia Fibula
Examples include
femur, tibia,
fibula, humerus,
ulna and radius

9. Short
Bones
The carpals -
a short bone
Roughly cube-shaped
and have approximately
equal length and width
Providing support and
stability with little
movement. Examples include
ankle and wrist
bones

10. Flat
Bones
The scapula -
a flat bone
a thin shape/structure
and provide considerable
mechanical protection
and extensive surfaces
for muscle attachments.

11. Irregular
Bones
Vertebrae -
irregular bones
Bones in the body which do
not fall into any other
category, due to their non-
uniform shape.
Consist of cancellous bone,
with a thin outer layer of
compact bone.
Good examples of
these are the
Vertebrae, Sacrum
and Mandible
(lower jaw).

12. Sesamoid
Bones
The patella (knee cap)
– a sesamoid bone
Short or irregular bones,
imbedded in a tendon.
It passes over a joint
which serves to protect
the tendon.
Examples common
to everyone include
the patellae
(kneecaps).

13. What do you
think we
would look
like without
bones?
 Bones provide the
framework for the body.
 Bones protect the body
organs.
 Bone helps the body move
in different directions and
different ways

14. What is
your bone
made of?

15. A typical bone has
an outer layer of
hard or compact
bone, which is
very strong, dense
and tough!
Inside this is a
layer of spongy
bone, which is
like honeycomb,
lighter and
slightly flexible.
In the middle of
some bones is jelly-
like bone marrow,
where new cells are
being produced for
the blood.

16. Muscular
Muscles are also necessary
for movement: They're the
masses of tough, elastic
tissue that pull our bones
when we move.

18. Smooth Cardiac Skeletal
T
Y
P
E
s

19. Smooth
Muscle
Involved in involuntary motion, for
example the smooth muscle of the
eyes helps them focus without the
prompt of the nervous system.
No striations and has cells that are
described as spindle shaped.
Examples include
stomach and
bladder

20. Cardiac
Muscle
Makes up the thick, inner layer of the heart.
Enables the heart muscle to pump
continuously and involuntarily without ever
resting.
Promotes the circulation necessary to sustain
the entire body.

21. Skeletal
Muscle
 Called striated muscle
 is part of what comprises the musculoskeletal
system, which connects muscles and bones for
voluntary body movements.
 Attached to both ends of a bone by the tendons.

22. Joints, ligaments and
tendons
Joints Ligaments Tendons

23. The ones between
the carpals of the
wrist, are found
where bones meet
as flat surfaces
Allow for the
bones to glide past
one another in any
direction.

24. Are where two or
more bones meet; They
allow you to move.

25.  Such as the one between the first
metacarpal and trapezium bone,
permit 360 degree motion by allowing
the bones to pivot along two axes.
 Such as the elbow
and knee, limit
movement in only one
direction so that the
angle between bones
can increase or
decrease at the joint.

26.  Form the only ball
and socket joints in
the body.
 Have the freest range
of motion of any joint
in the body – they are
the only joints that
can move in a full
circle and rotate
around their axis.

27. Fibrous
connective
tissue
which
attaches
muscle to
bone.
Fibrous
connective
tissue
which
attaches
bone to
bone