enmu
DESCRIPTION
BiomechanicsTRANSCRIPT
BIOMECHANIC
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COMMON MISCONCEPTIONS
Double Jointed
What does it mean to be double jointed?
Let’s deal with this at the end.
JOINT ARCHITECTURE
• Three classification of Joints:• Synarthroes - Immovable
• Sutures• Syndesmoses
• Amphiarthroses - Slightly Moveable• Synchondroses• Symphyses
• Diarthroses or synovial- Freely Moveable
SYNARTHROSES (IMMOVABLE)
Sutures
JOINT ARCHITECTURE
• Three classification of Joints:• Synarthroes - Immovable
• Sutures• Syndesmoses
• Amphiarthroses - Slightly Moveable• Synchondroses• Symphyses
• Diarthroses or synovial- Freely Moveable
SYNDESMOSES (IMMOVABLE)
Syndesmoses
The mid-radioulnar joint is an example of a
syndesmosis, where fibrous tissue binds the
bones together.
JOINT ARCHITECTURE
• Three classification of Joints:• Synarthroes - Immovable
• Sutures• Syndesmoses
• Amphiarthroses - Slightly Moveable• Synchondroses• Symphyses
• Diarthroses or synovial- Freely Moveable
AMPHIARTHROSES (SLIGHTLY MOVEABLE)Synchondroses
The sternocostal joints are examples of
synchondroses, wherein the articulating bones
are joined by a thin layer of hyaline
cartilage.
JOINT ARCHITECTURE
• Three classification of Joints:• Synarthroes - Immovable
• Sutures• Syndesmoses
• Amphiarthroses - Slightly Moveable• Synchondroses• Symphyses
• Diarthroses or synovial- Freely Moveable
AMPHIARTHROSES: (SLIGHTLY MOVEABLE)
Symphyses
hyaline cartilage disc separating the bones of the pubic symphysis, typical of a symphysis
joint.
DIARTHROSES OR SYNOVIALFREELY MOVABLE• Articular cartilage• Articular capsule• Synovial fluid• Associated bursae
•Knee Figure
SIX TYPES
ARTICULAR CARTILAGE
1.Spreads loads over a wider area, reducing contact stress
2.Provides a protective lubrication that minimizes friction and wear at the joint. It allows for movement at the joint with minimum wear.
Dense white connective tissue that 1- 5 mm thick.
ARTICULAR FIBROCARTILAGE
In the form of either a fibrocartilaginous disc or partial discs known as menisci, is also present between the articulating bones.
EX. Symphysi pubis and Intervertebral Discs
Partial Disc Ex: What do you think?
ARTICULAR CONNECTIVE TISSUE
Tendons: Muscles to bones
Ligaments: Bones to bones