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Musculoskeletal
Skeletal System
Bone: is a connective tissue
Musculoskeletal System Function:
Protect and support soft tissues
Anchor muscles, tendons, and ligaments
Rigid levers that operate muscles
Locomotion
Physiological Function
Critical for red-blood cell production (marrow cavity)
Fat storage
Calcium reserve and release
(metabolism)
Bone Properties
Living tissue, responds to external stress-deposits where needed absorbs where
it is not
Strength (mineral)
Tensile – High – stretch
Compression – High – top to bottom pressure
Torsion – Low – twisting
Musculoskeletal 1
, Elasticity (protein) – slightly higher than wood
Bone
Shaped and re-shaped by the cells that reside within it, conforms to mechanical
needs.
Morphology (size and shape) altered in life.
Anatomical Terminology
Vocabulary used to describe the human body
Standard anatomical position of the body = supine
Crania = skull
Postcrania = below the skull
Bone & Musculoskeletal system
Muscular movement
Origin: stable site during contraction
Insertion: site moved during contraction
Actions:
1. Flexion/Extension
2. Abduction/Adduction
3. Pronation/supination
4. Rotation
Motions
Flexion/Extension
Check pdf
Musculoskeletal 2
Musculoskeletal
Skeletal System
Bone: is a connective tissue
Musculoskeletal System Function:
Protect and support soft tissues
Anchor muscles, tendons, and ligaments
Rigid levers that operate muscles
Locomotion
Physiological Function
Critical for red-blood cell production (marrow cavity)
Fat storage
Calcium reserve and release
(metabolism)
Bone Properties
Living tissue, responds to external stress-deposits where needed absorbs where
it is not
Strength (mineral)
Tensile – High – stretch
Compression – High – top to bottom pressure
Torsion – Low – twisting
Musculoskeletal 1
, Elasticity (protein) – slightly higher than wood
Bone
Shaped and re-shaped by the cells that reside within it, conforms to mechanical
needs.
Morphology (size and shape) altered in life.
Anatomical Terminology
Vocabulary used to describe the human body
Standard anatomical position of the body = supine
Crania = skull
Postcrania = below the skull
Bone & Musculoskeletal system
Muscular movement
Origin: stable site during contraction
Insertion: site moved during contraction
Actions:
1. Flexion/Extension
2. Abduction/Adduction
3. Pronation/supination
4. Rotation
Motions
Flexion/Extension
Check pdf
Musculoskeletal 2
