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Functional Anatomy > Week 1 > Flashcards

Week 1 Flashcards

1
Q

what are the 4 forms of motion

A

Linear
Angular
General
Biomechanical system

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2
Q

Define linear motion

A

Any parts moving in the same direction and speed

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3
Q

Define angular motion

A

Movement around a central axis

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4
Q

Define general motion

A

Combination of linear and angular motion

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5
Q

Define biomechanical system motion

A

Combination of linear and angular motion

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6
Q

3 type of axises

A

X
Y
Z

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7
Q

Define X and Y axis

A

Y axis is the vertical axis in mediolateral direction

X axis is the horizontal axis in anterioposterior direction

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8
Q

name and define the 3 planes

A

Transverse - inferior and superior
frontal - anterior and posterior
sagittal - medial and lateral

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9
Q

3 components of a lever system

A

àxis of rotation
resistance arm
effort arm

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10
Q

Define 1st class lever

A

Axis in the middle of the effort and resistance

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11
Q

Define 2nd class lever

A

Resistance force is in the middle of the axis and the effort force

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12
Q

Define 3rd class lever

A

Effort force is in the middle of the axis and the resistance force

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13
Q

Mechanical advantage equation

A

Effort arm / resistance arm

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14
Q

speed advantage equation

A

Resistance arm / effort arm

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15
Q

Equilibrium equation

A

Effort x effort arm = resistance x resistance arm

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16
Q

Define torque

A

The application of force, at any point along a lever, causes it to rotate or tend to rotate about its axis. This generates torque (the rotational equivalent of force), a vector quantity

17
Q

Torque equation

A

T = Force (N) x Distance (M)

18
Q

Anticlockwise/ clockwise torque positive or negative

A 
Anticlockwise = Positive numbers
clockwise = Negative numbers
19
Q

Define sin, cos, tan

A 
Sin = Opposite / hypotenuse 
Cos= adjacent / hypotenuse 
Tan = opposite / adjacent
20
Q

2 factors that influence strength

A

Different moment arms

Different lever lengths

Functional Anatomy (26 decks)

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