Anatomy And Biomechanics Flashcards
(37 cards)
Congenital deformities, joint luxations or malunion
fractures can compromise the capacity of muscles to
generate appropriate moments by
Shortening the moment arm
Following sx for CCL Efforts in rehabilitation should be focused on
strength recovery of the quadriceps muscle so that
the extension moment about the stifle will be more
capable of stabilizing the stifle in weight bearing
Which lever system has the fulcrum situated between the effort force and the load force
Class 1
Extension of the elbow is what type of lever system
Class 1
Which lever has the load force between the effort force and fulcrum ?
Class II
Which lever has the effort force between the fulcrum and load force ?
Class III
Elbow flexion(biceps contraction) is what type of lever?
Class III
What is the relationship between force and
displacement and is expressed as the product of
the force and displacement ?
Work
What does The shape of articular surfaces define?
the
motions available for a joint
Intraarticular surfaces modify
The relationship of joint surfaces
The primary motion of joints is the movement of bones as a whole such as stifle flexion and is termed
physiologic
or osteokinematic
motion
What type of motion occurs at the joint surface?
Accessory or arthrokinematic motion
What are examples of accessory or arthrokinematic motions?
glide (slide),
roll, spin, distraction or traction, and
compression or approximation
What joint motions are shear or sliding motions of
opposing articular surfaces ?
Glides
Joint surface geometry, soft tissue
resistance, and external forces
affect which joint motion?
Glide
What joint motion involves one bone rolling on another?
Rolls
Which two joint motions are needed for normal joint motion?
Glides and Rolls
What are joint surface motions
that result in continual contact
of a single area of articular
cartilage on adjacent articular
cartilage within a joint
Spins
What accessory motions are tensile pulling apart movement between bones?
Distraction or traction
Which accessory motions are compressive (pushing together) movements between bones?
Compression or approximation
Intraarticular pressure is highest in the stifle during flexion or extension?
Flexion
What might increased intraarticular pressure cause in a joint?
Pain
Most important nerve in pelvic limb
Femoral
Most important nerve in thoracic limb
Radial
