Musculoskeletal Questions 3

The most important function of cortical bone is to:

Form a strong dense shell
Provide a store of P and Ca
Carry blood through Haversian canals
Hold collagen

Joints do not have the function of:
Allowing movement
Storage
Transmitting force
Allowing growth


What is the defining function of a synovial joint:
Storage
Allowing transmitting force
Allowing growth
Allowing movement, not restricted by specific bones or tissues




The next section refers to the 3 types of bone. Select the correct answers and mark in a group of 3


Synarthrosis
Freely movable
None of the above
Immovable joint
Slightly movable


Diarthrosis
Slightly movable
None of the above
Immovable joint
Freely movable


Amphiarthrosis
None of the above
Immovable joint
Freely movable
Slightly movable


The next section refers to examples of the 3 types of bone. Select the correct answers and mark in a group of 3


Synarthrosis
None of the above
Intervertebral disks (spine)
Hip joint
Skull


Diarthrosis
Hip joint
Skull
Intervertebral disks (spine)
None of the above



Amphiarthrosis
None of the above
Skull
Hip joint
Intervertibral disks (spine)


How many structures are there in a joint?
6
5
8
7


The fluid phase of articular cartilage does not include:
Water
Oil
Ions
Liquids


Chondrocytes do not have:
Lacunae to live in
The ability to build and maintain cartilage
A blood supply
The ability to occur in nests


The surface zone does not contain:
Cell nests
Low proteoglycan concentration
Flattened chondrocytes
Fibres parallel to the surface




Which is not true moving down through cartilage:
Collagen becomes more perpendicular to the surface
Surface zone, Middle zone, Deep zone, Tide mark, Calcified cartilage, Osteochondral junction, Subchondral bone.
Calcification increases
Oxygen increases


Which is not a component of hyaluronic acid:
Water
Glycosaminoglycan
Disaccharides
Keratin sulphate


Which does not contribute to the formation of a bottle brush shaped glycosaminoglycan?:
-ve charged disaccharides
hydrophobic interactions
disaccharide polymerisation
anchorage to a core protein



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