The document discusses the skeletal system and the various bones that make up the human body. It provides details on the 206 bones in an adult body and 300 bones in a baby. Key bones mentioned include the skull/cranium that protects the brain, vertebrae that make up the spine and protect the spinal cord, ribs that shield the heart and lungs, pelvic bones that surround reproductive organs, and long leg bones like the femur. The skeletal system comprises all of the body's bones and allows for structure, protection and movement.

1. Bones
and
Muscl
es
Major Organ of
Human Body

2. Activity

4. Skeletal
system
- This is the collection of
bones. The skeletal system
provides strength and
rigidity to our body, so we
don't just flop around like
jellyfish. The skeletal
system includes more than
just bones. It also includes

5. bONES
We have 206 bones in our adult
human body. Baby have 300 bones.
Each bone has a function. Some
bones offer protection to softer
more fragile parts of our body. For
example, the skull protects the
brain, and the rib cage protects our
heart and lungs. Other bones, like
bones in our legs and arms, help
us to move around by providing

6. Skull or
cranium
This is the bony structure that forms the
head of the skeleton in most vertebrates.
The skull is made up of different bones.
Some of these bones protect
your brain, whereas others make up
the structure of your face. If you touch
beneath your eyes, you can feel the ridge of
the bone that forms the hole where your eye

7. Human
ear
bones
Smallest bone in the
human ear.

8. Jaw
bone
The lower jawbone is the largest
and strongest bone in the face.
It forms the lower part of the
jaw and part of the mouth. The
lower jawbone is the only
moveable bone of the skull and
is attached to muscles involved
in chewing and other mouth
movements. It also holds the
bottom teeth in place.

9. Back
bone
One series of bones
runs the entire
length of the neck
and back and has a
unique design that
allows us to move in
all sorts of ways. It
is called the spine,
and its main job is to
support the body.

10. vertebrae
The spine is made up of 33
interlocking bones called
vertebrae. You can think of
vertebrae like beads on a
string, able to bend, twist, and
turn. Bones in the spine have
openings through which
passes a very important part
of our nervous system: the
spinal cord.

12. Ribs
Ribs act like a cage of
bones around your chest.
It's easy to feel the
bottom of this cage by
running your fingers
along the sides and front
of your body, a few
inches below your heart.
It protects your
heart, lungs, and
liver.

13. Pelvic
bones
The pelvis is a bowl-shaped
structure that supports the
spine. The pelvis acts as a
tough ring of
protection around
parts of the digestive
system, parts of the
urinary system, and
parts of the

14. Bones in
arms
Each arm is attached to a
shoulder blade or scapula ; a
large triangular bone on the
upper back corner of each side
of the ribcage. The arm is made
up of three bones:
humerus - which is above your
elbow,
Humerus
radius
ulna

15. Bones in
fingers
Each finger on your hand
has three bones, except
for your thumb, which
has two. So, between
your wrists, hands, and
all your fingers, you've
got a grand total of 54
bones — all ready to help
you grasp things, write
your name, pick up the
phone, or throw a
softball!

16. Bones
on legs
Your leg bones are very large
and strong to help support the
weight of your body.
Femur - the bone that goes
from your pelvis to your knee
and it's the longest bone in
your body.
Patella - or kneecap, it is the
triangular-shaped bone at the
knee that protects the knee
joint.
Tibia and Fibula - two other leg
bones below the knee.

17. Let’s have a
review !!!!
3 points In every
correct answer.
What are the
bones that
protects our
brain?
Skull or Cranium

18. What are the
bones that protect
our spinal cord?
Back bone

19. What are the
bones that
protect your
lungs, liver,
and heart?
ribs

20. These are the bones that
protect our digestive and
reproductive organs.
Pelvic bones

21. What are the three
bones found in our
arms/ hands? Give
at least one.
humerus radius
ulna

22. The three
bones that
found on our
legs are….
femur
tibia
fibula

23. How many
bones that a
human adult
have?
206 bones

24. How about
the baby
bones?
300 bones

25. What do we call a
bones that cover the
knee joints?
patella

26. It is a system that
composed of
bones.
Skeletal system

27. Where can we find
the smallest bone in
our body?
In our ears

28. The longest bone
in our body is…
femur