Chapter 4 Flashcards

1
Q

what is a uniaxial joint

A

joint that act as hinges rotating only 1 axis (elbow)

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2
Q

what is biaxial?

A

joints that move 2 perpendicular axes such as ankle wrist

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3
Q

multiaxial joints?

A

allow movement about all 3 perpendiculat axes such shoulder and hip (ball-and-socket)

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4
Q

vertebrae groups

A
7 cervical
12 thoracic
5 lumbar
5 sacral
3-5 coccygeal
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5
Q

during a straight-leg sit-up the origin (proximal[toward the center of the body]) of the iliacus muscle would be the?

A

femur because it is immobile

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6
Q

during a straight-leg sit-up the insertion( distal:away from the center of the body) of the iliacus muscle would be the ?

A

pelvis because it is mobile

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7
Q

what assist is joint stabilization and in braking the limb toward the end of a fast movement?

A

antagonist

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8
Q

synergist?

A

assists indirectly in a movement

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9
Q

what is a lever?

A

a rigid or simiriged body that when sujected to a force whose line of action does not pass throught its pivot point exerts force on any object impeding its tendency to rotate

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10
Q

fulcrum

A

the picot point of a lever

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11
Q

moment arm

A

the perpendicular distance from the line of action of the force to the fulcrum.

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12
Q

torque

A

also called mement, the degree a force tends to ratate an object about a specified fulcrum: magnitude of a force times the length of its moment arm

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13
Q

muscle force

A

force generated by biochemical activity or sthe stretching of noncontractile tissue

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14
Q

resistice force

A

force generated by a source extended to the body (gravity, inertia, friction) it acts contrary to muscle force

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15
Q

mechanical advantage

A

the ratio of the moment arm through which an apllied force acts to that through which a resistive force acts

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16
Q

first class lever

A

a lever for which the muscle force and resistive force act on opposite sides of the fulcrum

17
Q

2nd class lever

A

a lever for which the muscle force and resistive force act on the same side of the fulcrum

18
Q

movement and plane during a wrist curl

A

wrists flexion sagittal

19
Q

movement and plane during bicep curl

A

flexion sagittal

20
Q

movement and plane during tricep pushdown

A

extension sagittal

21
Q

movement and plane during front shoulder raise

A

flexion sagittal

22
Q

movement and plane during neutral grip seated row

A

extension sagittal

23
Q

movement and plane during wide grip lat pulldown

A

adduction frontal

24
Q

movement and plane during wide grip shoulder press

A

abduction frontal

25
Q

movement and plane during arm wrestle winning

A

internal rotation transverse

26
Q

movement and plane during arm wrestle losing

A

external rotation transverse

27
Q

movement and plane during dumbbell chest fly

A

adduction transverse

28
Q

movement and plane during bent over lateral raise

A

abduction transverse

29
Q

movement and plane during chin to chest; look up

A

chin to chest neck flexion sagittal

look up neck extension sagittal

30
Q

movement and plane during looking left and right

A

rotation transverse

31
Q

movement and plane during sit up

A

flexion sagittal

32
Q

movement and plane during stiff leg deadlift

A

extension sagittal

33
Q

what plane for the seated add and abd glute maching

A

transverse

34
Q

movement and plane during toe raise

A

dorsiflexion sagittal

35
Q

movement and plane during calf raise

A

plantar flexion sagittal