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32 Cards in this Set
- Front
- Back
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what are the 4 purposed of the elbow?
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1. enables proper positioning of hands and fingers
2. permits height and length adjustments to be made 3. assists shoulder with force distribution 4. stabilizes UE for power and fine coordination |
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what makes up the elbow and forearm complex
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humerus, ulna, radius
humeroulnar joint, humeroradial joint, proximal and distal radioulnar joints |
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the eblow joint consist of what 2 articulations?
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1. humeroulnar
2. humeroradial |
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what provides most of the elbows stability?
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trochlea and trochlear notch
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what are the 3 parts of the medial collateral ligament of the elbow joint?
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anterior, posterior, oblique
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of the three collateral ligaments of the elbow, which is the primary stabilizer?
ROM? |
anterior collateral ligament
20-120 degrees |
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what stabilizes the articular capsule of the elbow?
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radial and ulnar collateral ligaments
annular ligament |
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ligament of the elbow:
- strong triangular band stretching over the lateral side of the joint. its apex attaches proximally to the lateral epicondyle of the humerus |
radial collateral ligament
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ligament of the elbow..
- surrounds the radial head and joins to the base of the raidla collateral ligament holds radius close to ulna and allows spinning |
annular ligament
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ligament of the elbow
- medial component to the radial collateral ulnar nerve runs very close to this area |
ulnar collateral ligament
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what action is needed for..
-pulling, lifting, feeding, grooming... |
elbow flexion
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what action is needed for...
- throwing, pushing, reaching |
elbow extension
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the science of motion of bodies in space concerned with issues of displacement, velocity, and acceleration with respect to time
how fast, how far, how high |
kinematics
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- movement of bones in relation to one another
-planes of motion -degrees of freedom |
osteokinematics
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the movement of articulating surfaces in relation to the direction of movement of the extremities
- motion of roll, slide, spin that occur between the articular surfaces of joints |
athrokinematics
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hinge joints and trochoid (pivot) joint are known as...
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uniaxial joints
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condyloid or ellipsoid joints (one condyle fits into an elliptical socket)
saddle joint: convex in one plane and concave in the other (CMC of thumb) these are known as.. |
biaxial joints
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ball and socket and gliding/ plane joints are known as...
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triaxial joint
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forces acting in and on the body that produce stability or mobility
-consideration of internal forces (body mass and muscular forces) and external forces (gravity) |
kinetics
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term..
no force applied |
unloaded
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term..
force that pulls apart, separates |
tension
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term..
objects pressed together |
compression
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term..
force that deforms a material at right angle to longitudinal axis |
bending
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term..
forces that act in opposite by parrallel directions |
shear
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term..
force that twists a material around longitudinal axis |
torsion
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- lateral epicondylitis
- extremely common injury - occurs mostly in the tendon of extensor carpi brevis - specific inflammation is rarely present in the tendon by there is an increase in pain reepotrs in the area making the region extremely tender |
tennis elbow
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what should you look for when testing for tennis elbow
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elbow flexed, check for pain/ tenderness at lateral epicondyle
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- medial epicondylitis
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golfers elbow
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- pain originates from below tip of elbow where there is a sack of fluid
- constantly leaning on back of elbow .. bursa can become inflamed -elbow pain and swelling on the bony bit at the back of the elbow |
students elbow
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if a patient cannot adduct fingers what can this be a sign of?
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ulnar neuropathy
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-symptoms of wrist drop
-pain in the area of compression -no sensory symptoms because only motor fibers are compressed |
radial nerve entrapment
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how many bones and joints in the wrist?
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15 bones 17 joints
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