1. +
Skeletal System
Functions and Types of bones

2. +
Functions of the skeletal system

Protection of Organs – the brain in the skull, the heart, lungs,
liver etc., in the ribcage.

Storage of Mineral Salts – are large percentage of bone is
made from Calcium and Phosphorus, which can be both stored
and released from bone tissue.

Support gives the body shape and provides structure of
muscle to work against.

3. +
Functions

Movement – the skeleton
provides the structure for
muscles to pull against and
shorten, creating movement.

4. +
- Functions -

5. +
Types of bones

6. +
Types of bones

Long Bones – have a
diaphysis (shaft) and epiphysis
(growth plate – the bones of the
limbs in particular)

e.g. the bones of the limbs –
humerus, radius, ulna, femur,
tibia, fibula.

Ribs, Phalanges, Metacarpals
and Metatarsals.

The femur is the largest bone in
the body.

7. +
Types of bones

Short Bones – bones of the
hands and feet, i.e. the carpal
(hand) and tarsal (foot) bones.

They have no shaft and are as
long as they are wide.

8. +
Types of bones

Flat Bones – the bones of the
skull (excluding the mandible),
the ilium (pelvis), and scapula.

9. +
Types of bones

Sesamoid Bones –

Bones that are wrapped in
tendon or connective tissue

The patella (knee-cap)

10. +
Types of bones

Irregular bones – “one of a
kind” bones

The spinal column is comprised
of 30 irregular bones – no two
are exactly the same shape.

7 Cervical
12 Thoracic
5 Lumbar
5 Sacral (fused)
Coccyx