muscular system Flashcards
what are the three types of muscles?
involuntary- surrounding hollow organs
voluntary- attached to skeleton
cardiac- found in the walls of the heart
what is the function of the biceps?
flexion at the elbow- curling weights
what is the function of the triceps?
extension at the elbow- jump shot in basketball
what is the function of the pectorals?
adduction + flexion (horizontally) at the shoulder- forehand drive in tennis
what is the function of the hip flexors?
flexion of the leg at the hip- lifting knees when sprinting
what is the function of the gluteals?
extension, rotation + abduction of the legs at the hip- pushing the body forward when running
what is the function of the deltoids?
flexion, extension, abduction + circumduction at the shoulder- front crawl when swimming
what is the function of the latissimus dorsi?
extension, adduction + rotation at the shoulder- during butterfly when swimming
what is the function of the tibialis anterior?
dorsiflexion at the ankle- foot making contact with a football
what is the function of the rotator cuffs?
rotation + abduction at the shoulder- javelin throw
what is the function of the abdominals?
flexion at the waist- doing sit ups
what is the function of the gastrocnemius?
plantar flexion at the ankle- pointe work in ballet
what is the function of the quadriceps?
extension at the knee- kicking a ball
what is the function of the hamstrings?
flexion at the knee- arabesque (leg straight)
