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Intro to Biomechanic
WVSOM Class of 2012 Introduction to Biomechanics
| Question | Answer |
|---|---|
| what are the 2 functions of joints? | to facilitate movement and transmit force |
| what are the 3 basic kinds of joints? | synovial, fibrous, cartilaginous |
| synovial joints are designed to do what? | facilitate lots of movement, reduce friction to prevent injury |
| fibrous joints are designed to do what? | provide support, little movement |
| cartilaginous joints are designed to do what? | provide shock support, facilitate growth |
| from inner to outer, describe joint features: | joint space, synovial fluid, synovial membrane, hyaline cartilage, joint capsule |
| which kind of synovial joint is gliding/sliding (uniaxial)? | plane |
| what kind of synovial joint is for rotation (uniaxial)? | pivot |
| what kind of synovial joint is for flexion/extension (uniaxial)? | hinge |
| what kind of synovial joint is for Medial and lateral rotation, flexion, extension, abduction, adduction, circumduction (multiaxial)? | ball and socket |
| what kind of synovial joint is for Flexion, extension, abduction, adduction (circumduction) (biaxial) | condylar |
| what kind of joint is for Abduction, adduction, flexion, extension (circumduction) (biaxial) | saddle |
| name 3 types of fibrous joints: | gomphosis, suture, and syndesmosis |
| what are 2 types of cartilaginous joints? | primary (synchondrosis) and secondary (symphysis) |
| primary cartilaginous joints include: | hyaline growth cartilage |
| secondary cartilaginous joints include: | fibrocartilage |
| what is the following definition: Nerves supplying a joint also supply the muscles that move the joint (or skin covering distal attachment) | hilton's law |
| example of synchondrosis? | articular head of femur/epiphyseal plate |
| example of a symphysis? | iv disc |
| example of gomphosis? | teeth |
| example of syndesmosis? | interosseous membrane of the tibia and fibula |
| functional units of the muscle are what? | motor units |
| function of fleshy muscle? | stabilizers/postural |
| function of tendinous muscle? | movement/power |
| function of aponeurotic muscle? | postural |
| ventral muscle mass develops into what kind of muscle fiber? | flexors |
| what are concentric and eccentric movements of the muscles? | shortening, lengthening |
| Line of exertion through the joint center is a what? | shunt |
| line of exertion away from the joing center is a what? | spurt |
| what are the 4 possible forces which act upon bones? | torsion, bending, compression, shearing |
Created by:
mhassan
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