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Lecture 4

ANAT 101 Lecture Notes - Lecture 4: Circular Motion, Anatomical Terms Of Motion, Synovial Fluid

Anatomy and Cell Biology
Course Code
ANAT 101
Richard Oko

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Ch. 6 – Joints
Strength and mobility are generally inversely proportionate
Joints between vertebrae protect spinal cord by resisting compressions
1. Fibrous
2. Cartilaginous
a. Hyaline
b. fibrocartilage
3. synovial
Synovial Joints
1. protection
2. movement
allow for movement in multiple directions (uni, bi, multiaxial)
Two bones are not in direct contact; each bone is covered in an articulate cartilage
oAllow for friction-free movement/motion due to synovial fluid
Circulates within joint space
Lubricate cartilaginous articulate cartilage
Provide nutrients to articulate cartilage
Fibrous joint capsule
oStability for the two bones; keeps them tightly together
Associated structure
oBursa - This helps to reduce friction between the bones and allows free
movemen; filled with synovial fluid
oLigaments – stability and protection of joint
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