Muscular System Flashcards
(14 cards)
What are the 11 muscles in the body?
Pectorals, biceps, abdominals, quadriceps, tibialis anterior, rotator cuff, deltoid, triceps, latissimus dorsi, hamstrings, gastrocnemius
What is the function of a deltoid?
Function- abduction of the shoulder
Sporting example- outward arm action in a jumping jack
What is the function of a pectoral?
Function- Adduction of the shoulder
Sporting example- upwards phase of a press up
What is the function of a tricep?
Function- Extend the elbow
Sporting example- shooting in netball
What is the function of the bicep?
Function- flex the elbow
Sporting example- drawing a bow in archery
What is the function of abdominals?
Function- flex the trunk across the stomach
Sporting example- performing a sit up
What is function of latissimus dorsi?
Function- shoulder adduction
Sporting example- butterfly stroke in swimming
What is the function of quadriceps?
Function- extend the knee
Sporting example- kicking a ball
What is the function of the hamstrings?
Function- flex the knee
Sporting example- preforming a hamstring curl on a weight machine
What is the function of the gastrocnemius?
Function- plantar flexion of the angle
Sporting example- standing on a tiptoe to mark a goal shot in netball
What is the function of the tibialis anterior?
Function- dorsi flexi on of the ankle
Sporting example- foot making contact with a football
What is a isotonic contraction?
These occur when a muscle contracts and changes length
What are the two types of isotonic contraction?
Isotonic concentric contraction- this involves the muscle shortening
Isotonic eccentric contraction- this involves the muscle lengthening whilst it is under tension
What are the antagonistic muscle pairs?
Biceps, triceps
Hamstrings, quadriceps
Glutes, hip flexors
Gastrocnemius, tibialis anterior
