Anatomy And Biomechanics Flashcards

1
Q

Congenital deformities, joint luxations or malunion
fractures can compromise the capacity of muscles to
generate appropriate moments by

A

Shortening the moment arm

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2
Q

Following sx for CCL Efforts in rehabilitation should be focused on
strength recovery of the quadriceps muscle so that

A

the extension moment about the stifle will be more
capable of stabilizing the stifle in weight bearing

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3
Q

Which lever system has the fulcrum situated between the effort force and the load force

A

Class 1

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4
Q

Extension of the elbow is what type of lever system

A

Class 1

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5
Q

Which lever has the load force between the effort force and fulcrum ?

A

Class II

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6
Q

Which lever has the effort force between the fulcrum and load force ?

A

Class III

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7
Q

Elbow flexion(biceps contraction) is what type of lever?

A

Class III

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8
Q

What is the relationship between force and
displacement and is expressed as the product of
the force and displacement ?

A

Work

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9
Q

What does The shape of articular surfaces define?

A

the
motions available for a joint

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10
Q

Intraarticular surfaces modify

A

The relationship of joint surfaces

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11
Q

The primary motion of joints is the movement of bones as a whole such as stifle flexion and is termed

A

physiologic
or osteokinematic
motion

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12
Q

What type of motion occurs at the joint surface?

A

Accessory or arthrokinematic motion

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13
Q

What are examples of accessory or arthrokinematic motions?

A

glide (slide),
roll, spin, distraction or traction, and
compression or approximation

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14
Q

What joint motions are shear or sliding motions of
opposing articular surfaces ?

A

Glides

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15
Q

Joint surface geometry, soft tissue
resistance, and external forces
affect which joint motion?

A

Glide

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16
Q

What joint motion involves one bone rolling on another?

A

Rolls

17
Q

Which two joint motions are needed for normal joint motion?

A

Glides and Rolls

18
Q

What are joint surface motions
that result in continual contact
of a single area of articular
cartilage on adjacent articular
cartilage within a joint

A

Spins

19
Q

What accessory motions are tensile pulling apart movement between bones?

A

Distraction or traction

20
Q

Which accessory motions are compressive (pushing together) movements between bones?

A

Compression or approximation

21
Q

Intraarticular pressure is highest in the stifle during flexion or extension?

A

Flexion

22
Q

What might increased intraarticular pressure cause in a joint?

A

Pain

23
Q

Most important nerve in pelvic limb

A

Femoral

24
Q

Most important nerve in thoracic limb

A

Radial

25
Q

Which two tendons cross two joints

A

Biceps
Long digital extensor

26
Q

Label 6 planes in view

A
27
Q

Label flexor surfaces

A
28
Q

What happens when a concave joint surface moves on a convex surface?

A

The glide occurs in the same directionas the shaft of the bone moves.

29
Q

What happens when a convex joint surface moves on a concave surface?

A

Movement occurs in the opposite direction.

30
Q
A
31
Q

What gait is a slow four beat gait?

A

Walk

32
Q

What is the sequence of footfalls in a walk?

A

LH - LF - RH - RF

33
Q

Which gait is a two beat diagonal gait? In one stride the diagonal fore and hindlimbs aere in support while the other diagonal limbs are in the swing phase?

A

Trot

34
Q

Which gait has the ipsilateral fore and hindlimbs enetering the swing and stance phases together?

A

The Pace

35
Q

WHat gait is an endurance gait?

A

Cantor

36
Q

Which gait is a three beat gait?

A

Cantor

37
Q

Which gait is a four beat gait with two support phases and two flight phases in each stride?

A

Gallop