Body in Action (a) Movement SQA Questions. What you should know -skeleton The skeleton provides a f_______ for s_______ and m_______ attachment The skeleton.

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Presentation transcript:

Body in Action (a) Movement SQA Questions

What you should know -skeleton The skeleton provides a f_______ for s_______ and m_______ attachment The skeleton p_______ the h____, l______, b_____ and s_______ cord Bone is composed of the components f______ (elastic) f______ and h____ m________ Bone is formed by l_______ c____ ramework upportuscle rotectseart ungsrainpinal lexible ibres ard inerals ivingells

A b____ and s_____ joint e.g. ________ allows m_______ in _ planes A h_____ joint e.g. _____ allows movement in ___ plane allocket hip / shoulder ovement inge knee/elbow 1 3 What you should know - joints

What you should know - muscles Muscles are attached to b_____ by t_____ When a muscle c______ it s_______ and p___ on a tendon attached to a bone at a j_____ Tendons are i________ so that a__ the f_____of a muscle c___________ 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. ones endons ontractsocket ulls oint nelasticll orceontraction ransferred wo ends traighten

Synovial Joint p148 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 ip houlder lbownee

ligament synovial membrane synovial fluid cartilage

Name 1 – 4 in this ball and socket joint synovial membrane synovial membrane ligament cartilage synovial fluid

Structure of a Synovial Joint p148 CREDIT support holds the two bones together secretes synovial fluid cushions the joint and reduces friction lubricates the joint by reducing friction

cartilage ligament synovial fluid synovial membrane head of femur femur

Synovial joint functions CREDIT Part of synovial joint function bone support ligamentholds the two bones together synovial membranesecretes synovial fluid capsulesurrounds the joint cartilage cushions the joint and reduces friction synovial fluidlubricates the joint by reducing friction

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 Synovial membrane cartilage ligament B D Lubricates joint / Reduces friction

C A D E B

Reduces friction

One muscle bends joint Tendons are inelastic / do not stretch + second muscle needed to straighten joint

cartilage synovial fluid

s tendon

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