Bell Quiz
Matching
1. Thoracic
2. Cervical
3. Lumbar
4. Sacrum
5. Coccyx
6. Sternum
7. Ribs
8. True
9. False
10. Floating
A. 7
B. 3
C. 1 (5 fused)
D. 2
E. 12
F. 12 pairs
G. 5
H. 1 (3 parts)
I. 7
J. 1 (3 fused)
APPENDICULAR SKELETON
Limbs and base units
Pectoral Girdle
Connects
upper limbs
(arms) to
axial
skeleton.

Clavicle
Collar
bone (2)

Scapula
Shoulder
blade (2)

HUMERUS
Upper
arm, big
bone (2)

Radius and ulna
R= Lower arm,
thumb side (2)
 U= Lower arm,
pinky side (2)

Olecranon Process
Elbow bone
on the
proximal side
of the Ulna
Page 149

Funny Bone
Dislocated elbow
Carpals
Wrist bones.
Short bones
(16) (8 in
each wrist)

Carpal bones








A. scaphoid
B. lunate
C. triquetrum
D. pisiform
E. hamate
F. capitate
G. trapezoid
H. trapesium
Carpals

Sally left the party, to take Cathy home
Metacarpals
Palm of
the hand
(10 or 5 in
each
hand)

Phalanges
Finger
bones (28
or 14 in
each hand).

Polydactyl
Recap in #’s: Totals








Clavicle = 2
Scapula = 2
Humerus = 2
Radius = 2
Ulna = 2
Carpals = 16
Metacarpals = 10
Phalanges = 28

TOTAL in the pectoral
girdle and arms is:
64

Skull









Frontal -1
Parietal -2
Occipital -1
Temporal -2
Sphenoid -1
Ethmoid - 1
Lacremal -2
Nasal Bone -2
Maxilla -2

Zygomatic -2
Mandible -1
Vomer -1
Palantine – 2
Nasal Concha -2

22 total




Vertebrae and Ribs







Cervical – 7
Thoracic – 12
Lumbar – 5
Sacrum -1
Coccyx – 1
Sternum -1
Ribs – 24

51 Bones
Other



Ossicles – 6
Hyoid – 1
7 bones

Total so far

64+22+51+7 =

BONES TO GO 62
144
Activity – Good or Bad?

Cracking your knuckles

Popping your back or
neck
Evidence: Valid vs. Invalid
Cracking Nuckles

Joints (knuckles) are covered by a capsule (the joint capsule
or synovial capsule). Within the space of this capsule the
synovial fluid is contained which acts as a lubricant and also
contains nutrients for the adjacent bone surfaces. A variety
of gases are continuously dissolved in this fluid. When one
cracks a knuckle, the stretching of the capsule lowers the
pressure inside the joint and creates a vacuum which is filled
by the gas previously dissolved in the synovial fluid. This
creates a “bubble” which then bursts producing the
characteristic “popping” or “cracking” sound. It takes a
while until these gases are re-dissolved in the synovial fluid
which explains why knuckles cannot be “re-cracked”
immediately.