Transcript Document 7826618

SKELETAL
SYSTEM
SKELETAL
FUNCTIONS
1. Support for organs tissue, postural support against
gravity
2. Protection of vital organs, brain, lungs, and heart.
3. Storage of minerals, especially calcium and phosphorous
4. Hemopoiesis: Contains red bone marrow (hemopoietic
tissue) for the production of more blood cells
5. Movement, if muscles had nothing to anchor their
tendons to, there would be very inefficient bodily
movement.
Bone Classification by Shape
Anatomy
of a
Typical
Long
Bone
What type of
connective tissue cells
make up articular
cartilage?
What is the proper
name for a bone cell?
Histology of Bone
Which cells lay
down fresh bone
matrix?
Which cells
“recycle” bone
matrix?
What category of
tissue does bone
belong to?
What is an osteon?
What is a lacuna?
What are
canaliculi?
What is a haversian
canal?
Compact and Spongy Bone Tissue
Organization Bones of the
skeleton contain a
combination of both
types of bone tissue
organization.
What type of bone
shape is shown to the
left?
What type of bone
tissue is the green
arrow pointing at?
What type of bone
tissue is the red
arrow pointing to?
Osteogenesis - 10 week fetus
Over 300
Cartilaginous
Models in
Skeleton
Osteogenesis - 16 week fetus
Endochondral
Ossification
(Bone
Formation)
Name this structure
Bone Fracture Repair
Bone Fracture Repair (cont’d)
MAJOR
BONES OF
THE
SKELETON
AXIAL
DIVISION
SPINAL CURVATURES
APPENDICULAR
DIVISION
Bones of the upper
and lower extremities
UPPER EXTREMITY
Types of JOINTS - Articulations
1. Synarthrotic – Fibrous – No
movement
2. Amphiarthrotic –
Cartilaginous. Slight
movement but no joint
cavity
3. Diarthrotic – Synovial –
Highest range of motion with
joint cavity between bones
Joint Movement Terms
FLEXION vs. EXTENSION
hyperextend
extend
flexion
flexion
extension
dorsiflexion
plantar
flexion
neutral
Joint Movement Terms
ABDUCT vs. ADDUCT
Joint Movement Terms
ROTATION vs. CIRCUMDUCTION
pivot
circle
KNEE Joint Anatomy