Musculoskeletal Questions 3

The most important function of cortical bone is to:

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

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


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




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


Diarthrosis
Immovable joint
Freely movable
Slightly movable
None of the above


Synarthrosis
Freely movable
Slightly movable
Immovable joint
None of the above


Amphiarthrosis
Immovable joint
Slightly movable
Freely movable
None of the above


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


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



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


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


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


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


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


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




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.
Oxygen increases
Calcification increases


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


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



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