Knee/Ankle
What type of joint is the talocrual joint?
Hinge
True or false. The GH joint is the most mobile joint in the body.
True
How many angular degrees of freedom does the hip have?
3
What is the name of the joint the comprises of C1 and C2?
Atlanto-axial joint
True or false. Wrist ext ROM is larger with the fingers flexed than with the finges fuly extended, due partially to passive insufficency of the wrist flexors.
True- active insufficency due to wrist extensors
You suspect your patient has a PCL tear. What direction of translational motion would you suspect to be excessive?
Posterior translation of the tibia
To prevent superior acceleration of the humeral head with GH abduction, what group of muscles need to be activated?
Rotator cuff- teres minor, infra, subscap
True or false. For both pelvic hike and pelvic rop the motion is often more evident at the opposite hip.
True- due to motion of the stationary limb
What structure of the spine is responisble for the majority of weight bearing?
vertebral bodies
True or false. A varus carrying angle is normal for the elbow?
False. Valgus is normal
Which ligament is positioned to limit varus motion at the knee?
LCL
During ST jt elevation, what motion occurs at the SC and AC joint?
SC elevation
AC downward rotation
Hip extension ROM is smaller when the knee is flexed compared to when its extended. The passive properties of which muscle can contibute to this limited ROM?
rectus femoris
In the thoracic region the facets are approximately in the frontal plane. Which spinal motions would you expect to be allowed with substantial ROM?
Flex/Ext and lateral flexion
Assume the optimal length to produce force for elbow flexors is 90 degrees elbow flexion. What would happen to the force production of the bracialis if you contact maximally with a fully flexed elbow? Why?
decrease due to muscle shortening beyond optimal length
Name the two components of motion associated with subtalar supination?
inversion and adduction
What ST joint motion will be produced by the serratus anterior primarly and pec major indirectly
protraction
Hip flexion ROM can be limited bt tightness anywhere in the joint capsule. How could you mobilize the joint to address tissue tightness?
Appy a long axis distraction
What motions are coupled/linked in standard cervical vertebrae?
Axial rotation and lateral flexion
Perpendicular moment arm of the biceps is longer when the forarm is?
supinated
A patient has limited plantarflexion ROM. You notice the active ROM gets smaller when the knee is flexed, compared to when its fully extended. Which could explain this observation?
Active insufficency of the gastroc (2 jt. muscle)
Name all the motions associated with elevation of the shoulder complex
GH abduction
AC upward rotation
SC elevation
ST upward rotation
What direction will a anterior GRF produce around the hip?
Flexion
Name the 3 motions that will occur if you unilaterally contact your L SCM?
flexion, L lateral flexion, R axial rotation
Name the primary goal of the wrist extensors (besides extending the wrist)
maintain the optimal length of the finger flexors