Muscles (Origin, Action and Insertion) Flashcards
1
Q
Gluteus Maximus Origin
A
- Posterior Sacrum
- ilium (via sacrotuberous ligament)
- Posterior (superior) gluteal line of ilium
2
Q
Gluteus Maximus Insertion
A
- Gluteal tuberosity of femur
- Iliotibial tract (IT band) - attaching to lateral condyle of tibia
3
Q
Gluteus Maximus Action
A
- Extension of femur
- Lateral rotation of extended hip
4
Q
Gluteus Medius Origin
A
- iliac crest of ilium
- ilium between posterior (superior) and anterior (middle) gluteal lines
5
Q
Gluteus Medius Insertion
A
Greater trochanter of femur
6
Q
Gluteus Medius Action
A
- abduction of femur
- Anterior fibers: medial rotation of femur
7
Q
Gluteus Minimus Origin
A
Posterior ilium - between anterior (middle) and inferior gluteal lines
8
Q
Gluteus Minimus Insertion
A
anterior surface of greater trochanter of femur
9
Q
Gluteus Minimus action
A
- abduction
- medial rotation of femur
10
Q
Biceps Femoris Origin
A
- Long head: ischial tuberosity
- short head: linea aspera of femur
11
Q
Biceps Femoris Insertion
A
head of fibula (lateral aspect)
12
Q
Biceps Femoris Action
A
- long head: extension of hip
- both heads; flexion of knee
- lateral rotation of flexed knee
13
Q
Semitendinosus & Semimembranosus Origin
A
ischial tuberosity
14
Q
Semitendinosus & Semimembranosus Insertion
A
- Semitendinosus: anterior proximal tibial shaft and connective tissue Pes Anserine
- Semimembranosus: posterior medial tibial condyle
15
Q
Semitendinosus & Semimembranosus Action
A
- Extension of hip
- Flexion of knee
- Medial rotation of flexed knee
