W2 Appendicular Skeleton Upper Leg (BIO 201, Practical 2)

Gluteus minimus

Gluteus medius

Gluteus maximus

Abduction of hip

Action for gluteus muscles

Piriformis

Lateral rotation of thigh

Action of piriformis

Tensor Fascia Latae

Extends knee, laterally rotates tibia

Action for tensor fascia latae

Psoas Major

Iliacus

Sartorius

Anterior superior iliac spine

origin of sartorius

Medial surface of proximal end of tibia

Insertion of sartorius

Hip flexion

Action for sartorius

Pectineus

Pectineus, adductor brevis, adductor longus, adductor magnus

Adduct hip joint

Psoas major, iliacus, sartorius, pectineus

Flexion of hip joint

Adductor brevis

Adductor longus

Adductor magnus

Gracilis

Gracialis, biceps femoris, semitendinosus, semimembranosus

Knee joint flexion

biceps femoris, semitendinosus, semimembranosus

Hamstring group

Biceps femoris

Semitendinosus

Semimembranosus

Long head: ischial tuberosity, Short head: linea aspera

Origin of biceps femoris

Head of fibula

Insertion of biceps femoris

Ischial tuberosity

Origin of semitendinosus

Medial surface of upper tibia

Insertion of semitendinosus

Ischial tuberosity

Origin of semimembranosus

Medial condyle

Insertion of semimembranosus

Tensor Fascia Latae, Rectus Femoris, Vastus Medialis, Vastus Intermedius, Vastus Lateralis

Knee joint extension

Rectus Femoris

Vastus Medialis

Vastus Intermedius

Vastus Lateralis

Rectus Femoris, Vastus Medialis, Vastus Intermedius, Vastus Lateralis

Quadriceps

action of gluteus minimus

abduct thigh, medial rotation of the hip, lateral rotation of the hip, helps shift the weight of the trunk

action of gluteus maximus

extends thigh at hip, abducts thigh, helps stabilize femur on tibia

action of psoas major

flexion of thigh (hip), lateral rotation of thigh, lateral flexion of trunk

iliacus action

flexion of thigh (hip), lateral rotation of thigh

gracilis action

flexes knee, medially rotates tibia at knee

biceps femoris action

flexes knee, extends hip

semitendinosus + semimembranosus action

flexes knee, extension of thigh