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IB SEHS Topic 4
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Name: Score:71 Multiple choice questions
Term 1 of 71
Momentum
Vector - Change in momentum
Is the basic unit of a muscle and is the part of the muscle that contracts
Vector - the quantity of motion of a moving body, measured as a product of its mass and
velocity. The impetus gained by a moving object
Decreases the angle of the joint
Term 2 of 71
Medial
Decreases the angle of the joint
Inferiorly
Superiorly
Towards the midline
Definition 3 of 71
Body moves in the direction of lower pressure as a result of the Bernoulli Principle
Bernoulli principle
Magnus effect
Displacement
Angular momentum
,Term 4 of 71
Isotonic
Force remains constant during the movement
Outward movement
Flexion, Extension, Adduction, Abduction, Rotation, Circumduction, Plantar, Dorsi,
Supination, Pronation, Inversion, Eversion, Depression, Elevation
Moving a bone around its own axis, with no other movement
Term 5 of 71
Muscle contraction
Two protein sites responsible for movement
Movement toward the midline of the body
Moving a bone around its own axis, with no other movement
Shortening/lengthening of sarcomere. Z Lines move closer, I Band, H Zone decrease
Definition 6 of 71
From the end of the Myosin to the Z Line
Z Line
I Band
Lateral
H Zone
, Definition 7 of 71
Myofilament
Depression
Myofibril
Motor Unit
Term 8 of 71
Inversion
Toward midline
Near the front
Away from the midline
Towards center
Definition 9 of 71
Where the muscle shortens as the fibres contract
Isokinetic
Isometric
Concentric
Eversion
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