The musculoskeletal system Flashcards

1
Q

what is a ball and socket joint and give an example

A
  • allows movement in every direction

- hip and shoulder are ball and socket joints

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2
Q

what is a hinge joint and give an example

A
  • only allows movement in one direction

- the ankle, knee and elbow are hinge joints

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3
Q

describe the sagital plane

A

this is a vertical plane, divides the body into right and left halfs.

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4
Q

describe the transverse plane

A

this divides the body into upper and lower halfs

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5
Q

what is the transverse axis

A

runs from side to side across the body.

flexion, extension plantarflexion dorsiflexion and hyper extension occur in a sagital plane about a transverse axis

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6
Q

what is the sagital axis

A

runs from front to back and abduction and adduction occur on this axis

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7
Q

what is the longitudinal axis

A

runs from the top to the bottom of the body and horizontal abduction and horizontal abduction occur on this axis

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8
Q

whats the difference between horizontal abduction and horizontal adduction

A

horizontal abduction is the movement of a limb forwards while it is held parralel to the ground and adduction is where it moves backwards

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9
Q

what is a concentric contraction

A

when a muscle shortens under tension

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10
Q

what is eccentric contraction

A

when a muscle lengthens under tension or performers negative work and acts like a break

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