skeletal and muscular systems Flashcards
Wrist flexion agonist
wrist flexor
wrist extension agonist
wrist extensor
Hip flexion agonist
Illiopsoas
hip extension agonist
Gluteas maximus
Hip abduction agonist
gluteas medius and gluteas minimus
Hip adduction agonist
Adductor Brevis, Adductor longus, Adductor Magnus
Hip Medial rotation agonist
gluteus Medius , gluteus minimums
Hip lateral rotation agonist
gluteas maximus
shoulder flexion agonist -
anterior deltoid
shoulder extension agonist
posterior deltoid
shoulder abduction agonist
lattisimus dorsi
shoulder adduction agonist
medial deltoid
shoulder horizontal flexion agonist
pectoralis major
shoulder horizontal extension agonist
pectorlais minor
shoulder medial rotation agonists
teres major
shoulder lateral rotation agonists
teres minor
elbow flexion agonist
bicep brachii
elbow extension agonist
triceps brachii
knee flexion agonist
bicep fermoris
knee extension agonist
rectus fermoris
ankle dorsi flexion agonist
tibialas anterior
ankle plantar flexion agonist
gastrocnemius and soleous
ligament
connects bone to bone
articulating bones of shoulder
humerus and scapula
articulating bones of wrist
radius ulna and carpals
articulating bones of hip
femur and pelvic girdle
articulating bones of knee
femur and tibia
articulating bones of ankle
tibia , fibula and talus
isotonic contractions
change length
isometric contractions and example
don’t change length- plank, scrum
2 types of isotonic contractions and example
concentric (shortens)- upward phase bicep curl
eccentric ( lengthens ) - downward phase bicep curl
movements in sagittal plane and transverse axis
flexion , extension , dorsi flexion and plantar flexion
movements in frontal plane and sagital axis
abduction and adduction
movements in transverse plane and longitudinal axes
horizontal extension
horizontal flexion
rotation
skeletal muscle contraction stages
1 - impulse initiated in motor neuron
2- impulse travels down axon by action potential
3- acetycholine secreted into synaptic cleft so impulse can travel over
4- all or none law
neuron size of three fibres
SO- small
FOG- large
FG- large
capillary density of three fibres
SO- high
FOG- high
FG-low
force of contraction of three fibres
SO- low
FOG- high
FG- high
small motor units
sustained muscle contractions
large motor units
brief and large force contraction
Type 1 - Slow oxidative
sub max
low force
fibres recover quickly
Type 2a- Fast oxidative glycolitic
large force quickly
resist fatigue
type 2b - Fast glycolitic
max effort
forms DOMS
used for 2-10s