muscular system Flashcards
name 5 major muscles
deltoids, pecs,biceps, triceps, abs, traps, lats, quads, hams, glutes, calf muscle
whats the role of deltoids with example
provide shoulder movement (adduction and flexion) preparing to set in volleyball
role of pecs + example
abduction, flexion and internal rotation of the shoulder
press ups
role of biceps + example
flexion of the elbow, bicep curl
role of triceps + example
extension of elbow - shooting basketball
role + example of abdominals
flexion of vertebrae and hip, summersault tuck
role + example of traps
extension of neck, tilting head back for catching a cricket ball
role + example of lats
extension and adduction of shoulder, rowing
role + example of quadriceps
extension of the knee, jumping for rebound in basketball
role + example of hamstrings
flexion of the knee, preparing to shoot football
role + example of gluteal
extension and adduction of hip, jumping to receive netball
which muscle is the calf muscle name
gastrocnemius
role + example of gastornemius
plantar flexion of the ankle, pointing toes in a dive
whats an antagonistic muscle pair
pair of muscles that work together to provide movement
whats the agonist
the prime mover/ muscle that contracts and provides movement
whats the antagonist muscle
the muscle that relaxes allowing the movement to occur
3 examples of antagonistic muscle pairs
bicep curl(bicep agonist and triceps)
flexion of knee ( hamstring agonist and quad)
extension of knee ( quad agonist and hamstring)
whats the origin + example
the muscle attachment to stable bone, bicep = scapula
whats the insertion + example
muscle attachment moving bone , bicep = radius
whats the fixator + example
stabiles origin of agonist muscle,
traps stabilise scapular during bicep curl
whats the gastrocnemius and tibialis anterior antagonistic muscle pair
responsible for dorsi and plantar flexion
dorsi flexion = tibialis agonist
plantar flexion = gastrocnemius agonist
whats the hip flexor and gluteus maximus muscle pair
flexion of the hip = hip flexor agonist
extension of the hip = gluteus maximus agonist
what are the 3 muscle types - brief description
voluntary muscles - muscles which pull on bone to provide movement
cardiac muscles - involuntary muscles in your heart which pump blood around the body
involuntary muscles - blood vessels, responsible for vascular shunting
what are the short term effects of exercise on the muscular system
when you start to exercise the muscles require energy quickly and they use the oxygen stores in the muscles, haemoglobin in the blood
during recovery increased breathing rate for extra oxygen to replenish myoglobin stores, break down lactic acid, allow energy stores to be replenished
anaerobic respiration causes muscle fatigue and the build of of lactate
