Muscles and their actions- lower core Flashcards
1
Q
A
iliacus
- inside surface of pelvis
- crosses hip
- lifts thigh (hip flexion)
- origin iliac creast and inside surface of ilium
- insert lesser trochanter of femur
- sjares tendon with psoas major
2
Q
iliacus
A
- inside surface of pelvis
- crosses hip
- lifts thigh (hip flexion)
- origin iliac creast and inside surface of ilium
- insert lesser trochanter of femur
- sjares tendon with psoas major
3
Q
A
Psoas Major
- part of hip flexor
- part of lumbar spine and across inside of pelvis
- crosses hip and lumbar invertebral joints
- lifts thigh (hip flexion)
- pulls trunk to leg
- assists in lateral flexion of trunk
- stabilized lumbar spine
- origin t12-L5
- insertion lesser tronchanter of femur
- during hip flexion it increases lordosis of spine unles countered by abs
4
Q
Psoas Major
A
- part of hip flexor
- part of lumbar spine and across inside of pelvis
- crosses hip and lumbar invertebral joints
- lifts thigh (hip flexion)
- pulls trunk to leg
- assists in lateral flexion of trunk
- stabilized lumbar spine
- origin t12-L5
- insertion lesser tronchanter of femur
- during hip flexion it increases lordosis of spine unles countered by abs
5
Q
A
Sartoreus
- front of thigh
- crosses hip and knee
- lifts thigh (hip flexion)
- hip abduction
- turns thigh outwards (hip lateral rotation)
knee flexion, knee medial rotation
- origina anterior superior spine of pelvis
- inserts anterior and medial surface of tibia below condyle
6
Q
Sartoreus
A
- front of thigh
- crosses hip and knee
- lifts thigh (hip flexion)
- hip abduction
- turns thigh outwards (hip lateral rotation)
knee flexion, knee medial rotation
- origina anterior superior spine of pelvis
- inserts anterior and medial surface of tibia below condyle
7
Q
A
Gluteus Maximus
- butt
- crosses hip
- pulls thigh backwards (hip extension)
- turns thigh out (hip lateral rotation)
- origin sarum, coccyx and posterior surface of ilium
- insertion- glutel tuberosity of femus and iliotibial band
8
Q
Gluteus Maximus
A
- butt
- crosses hip
- pulls thigh backwards (hip extension)
- turns thigh out (hip lateral rotation)
- origin sarum, coccyx and posterior surface of ilium
- insertion- glutel tuberosity of femus and iliotibial band
9
Q
A
Gluteus Medius
- outside of hip
- crosses hip
- raises thigh to side (hip abduction)
- hip medial rotation (thigh inwards)
- posterior fibers assist with turning thigh out when hip is flexed
- origin outer surface of ilium
- insertion- laterally on top of femur
10
Q
Gluteus Medius
A
- outside of hip
- crosses hip
- raises thigh to side (hip abduction)
- hip medial rotation (thigh inwards)
- posterior fibers assist with turning thigh out when hip is flexed
- origin outer surface of ilium
- insertion- laterally on top of femur
- important for hip stabilization when walking and running
- prevents pelvis dipping when body weight balances over one leg
11
Q
A
Gluteus minimus
- outside of hip, deeper than glutes medius
- crosses hip
- raises thigh to side (hip abduction)
- assists in turning thigh inwards (medial rotation)
- posterior fibers assist in turning the thigh outwards (lateral roation when hip is flexed)
- outside of surface of ilium
- laterally on top of femus (greater tronchanter)
- important for hip stabilization during support phase of walking and running
12
Q
Gluteus Minimus
A
- outside of hip, deeper than glutes medius
- crosses hip
- raises thigh to side (hip abduction)
- assists in turning thigh inwards (medial rotation)
- posterior fibers assist in turning the thigh outwards (lateral roation when hip is flexed)
- outside of surface of ilium
13
Q
A
Piriformis
- outside of hip, deep to gluteur medius and minimus
- crosses hip
- raises thigh to side (hip adduction)
- assists in turning thigh outwards (lateral rotation)
- origin anterior surface of sacrum
- insertion- top of femur (greater trochanter)
- disfunction can cause sciatic pain that radiated from butt to leg because sciatic nerve passes close to it
14
Q
Piriformus
A
- outside of hip, deep to gluteur medius and minimus
- crosses hip
- raises thigh to side (hip adduction)
- assists in turning thigh outwards (lateral rotation)
- origin anterior surface of sacrum
- insertion- top of femur (greater trochanter)
- disfunction can cause sciatic pain that radiated from butt to leg because sciatic nerve passes close to it
15
Q
A
Tensor Fascia Latae
- front outside of hip
- crosses hip and knee (via IT band)
- lifts thigh (hip flexion)
- turns thigh inwards (hip medial rotation)
- raises thigh to side (hip abduction)
- origin anterior iliac crest
- insertion iliotibial band
16
Q
Tensor fascia latae
A
- front outside of hip
- crosses hip and knee (via IT band)
- lifts thigh (hip flexion)
- turns thigh inwards (hip medial rotation)
- raises thigh to side (hip abduction)
- origin anterior iliac crest
- insertion iliotibial band
17
Q
A
Adductor longus
18
Q
A
Adductor Magnus
19
Q
A
Adductor brevis
21
Q
A
Pectineus
- inside fo thigh
- crosses hip
- hip adduction
- turning thigh inwards (hip medial rotation)
- assists in raising thigh (hip flexion)
- origin pubis
- insertion- medially on top of femur below lesser tronchanter
22
Q
Pectineus
A
- inside fo thigh
- crosses hip
- hip adduction
- turning thigh inwards (hip medial rotation)
- assists in raising thigh (hip flexion)
- origin pubis
- insertion- medially on top of femur below lesser tronchanter
23
Q
A
Gracilis
- inside of thigh
- crosses hip and knee
- pulls thigh into body (hip adduction)
- assists in knee flexion
- origin pubis
- insert medial surface of tibia below condyle
24
Q
Gracilis
A
- inside of thigh
- crosses hip and knee
- pulls thigh into body (hip adduction)
- assists in knee flexion
- origin pubis
- insert medial surface of tibia below condyle
