Skeletal organization

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Skeletal organization
Ch. 7 Anatomy
Part II
Table 7.1, p. 141
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Axial Skeleton
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Head, neck and trunk
Appendicular Skeleton

Upper and lower limbs
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
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
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26
22
25
60
60
bones
bones
bones
bones
bones
in
in
in
in
in
vertebra
skull
ribs
arms/hands
legs/feet
Skull drawing
Did you hear about the latest pirate
movie? Its rated “Arrrrrrrrrgh!”
Skull: p. 142-147

At birth, babies’ skulls have soft spots
(membranous areas)


So they can pass thru birth canal easier
More of a forehead than adults
A chinese elephant man (from a
tumor)
Vertebral Column

Fig. 7.15
contortionist - Google Video

Ends with your sacrum and coccyx


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Sacrum-triangular, 5 fused vertebrae
Coccyx-tailbone
Ribs
Fig. 7.19 Ribs

1st 7 rib pairs-true ribs
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
Join to sternum
Other 5 pairs-false ribs

Do not reach sternum directly

Last 2 pairs are floating ribs
Shoulder area

Clavicle (collar bone)
is the bone most
often broken
Upper Limb


Humerus, radius, ulna
Fig. 7.25: wrist and
hand bones
Pelvic girdle



Females usually have a wider pelvis
Breakdancing Kid
How to dance like a white guy.
Lower limbs


Femur, tibia and fibula
in legs, with patella
Foot bones Fig 7.31
Joints
Joints

Different types

Fibrous-like a suture between skull bones

Cartilagenous-ex. in vertebrae

Synovial-ex. knee, finger
Types of synovial joints (Table 7.4)

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Ball and socket-shoulder, hip
Condyloid- like btw metacarpals and
phalanges
Gliding- wrist
Hinge-elbow
Pivot-proximal ends of radius and ulna
Saddle-carpal and metacarpal of thumb

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Most information was taken from the
textbook, Hole’s Essentials of Human
Anatomy and Physiology.
Pictures taken from google.com
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