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Body in Action (a) Movement. SQA Questions. What you should know -skeleton. ramework . upport . uscle . The skeleton provides a f _______ for s _______ and m _______ attachment The skeleton p _______ the h ____, l ______, b _____ and s _______ cord
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Body in Action (a) Movement SQA Questions
What you should know -skeleton ramework upport uscle • The skeleton provides a f_______ for s_______ and m_______ attachment • The skeletonp_______ the h____, l______, b_____ and s_______ cord • Bone is composed of the componentsf______ (elastic) f______ and h____ m________ • Bone is formed by l_______ c____ rotects eart ungs rain pinal ibres lexible ard inerals iving ells
What you should know - joints • A b____ and s_____ joint e.g. ________ allows m_______ in _ planes • A h_____ joint e.g. _____ allows movement in ___ plane hip / shoulder all ocket ovement 3 knee/elbow inge 1
What you should know - muscles endons ones ontracts ocket • Muscles are attached to b_____ by t_____ • When a musclec______ it s_______ and p___ on a tendon attached to a bone at a j_____ • Tendons are i________ so that a__ the f_____of a musclec___________ is t__________ to the bone at a joint • At a joint there are always t___ muscles. One muscle b_____ the joint + second muscle needed to s_________ the joint. ulls oint nelastic ll orce ontraction ransferred wo ends traighten
Synovial Jointp148 CREDIT • A synovial joint is a joint l_________ by s________ fluid • All b___ and socket and h_____ joints are synovial joints • The h__, s_______, e______ and k____ are all synovial joints ubricated ynovial all inge houlder ip lbow nee
ligament synovial membrane synovial fluid cartilage
Name 1 – 4 in this ball and socket joint ligament synovial membrane synovial membrane synovial fluid ligament cartilage
Structure of a Synovial Joint p148 CREDIT support 1 holds the two bones together 2 secretes synovial fluid 3 cushions the joint and reduces friction 4 lubricates the joint by reducing friction 5
synovial fluid 3 1 cartilage ligament 4 synovial membrane 5 head of femur ligament 2 femur
Synovial joint functionsCREDIT 1 2 3 4 5
Cushions the joint / end of bones/ acts like a shock absorber
Range of movement is less in one plane/ two directions Flexible fibres / hard minerals
brain heart lungs spinal cord
movement support ligament Hard minerals
skull brain Rib cage heart and lungs backbone spinal cord
cartilage Synovial fluid Synovial membrane ligament B Lubricates joint / Reduces friction Synovial membrane cartilage D ligament
C A D E B
One muscle bends joint + second muscle needed to straighten joint Tendons are inelastic / do not stretch
cartilage synovial fluid
s tendon