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Summary WJEC (England) Eduqas A-Level Biology 3. Requirements for life - Option b Human Musculoskeletal anatomy - 1. skeletal tissues

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I achieved a high A* Grade in my final A-Level exams using these notes!!! I believe you can achieve an A* if you can memorise these notes! Simply use blurting, a method of active recall, to write everything you remember from the notes, then identify the parts you couldn’t remember, then repeat until you can remember it all! If you can do that, you’ve got an A* in the bag! They are clear, concise, and are laid out according to the specification; there is no information missing or in excess. Good Luck!!!

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Institution
WJEC
Module
Option B: Human Musculoskeletal Anatomy

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a. Cartilage – hard & flexible/compressible/elastic connective tissue
 rigid: provides support – trachea
 flexible: permits movement of ribcage
 elastic (bend & return to original shape): role in joints


- chondrocytes embedded in lacunae in matrix
- no blood vessels: nutrients must diffuse through matrix – takes long time to heal
- no nerves – don’t feel pain unless it degrades



hyaline cartilage: weakest – articular surface of bones (joints) / nose / trachea / ribcage
- high proportion of collagen fibres – tough = withstand force in joint
- perichondrium: fibrous connective tissue coat
o reduces friction
ossifies into bone in foetus
damaged: replaced by fibrocartilage scar tissue


yellow elastic cartilage: most flexible = external ear
- high proportion of yellow elastic fibres
- perichondrium: fibrous connective tissue coat


white fibrous cartilage (fibrocartilage): strongest – intervertebral discs
- dense collagen fibres – high tensile strength
o shock-absorber
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Study Level
A/AS Level
Examinator
WJEC
Subject
Biology
Unit
Option B: Human Musculoskeletal Anatomy

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