Final Anatomy LAB Practical (thigh, leg, foot, head, face)

Sartorius Origin

Anterior superior iliac spine

Sartorius Insertion

Upper medial shaft of tibia

Sartorius Action

Assists flexion of femur, Assists ABDuct of femur, Assists lateral rotation of femur, Assists flexion of knee. Assists medial rotation of tibia when knee is flexed & foot is unweighted

Sartorius Innervation

Femoral n L2-3

Rectus Femoris Origin

Anterior inferior iliac spine, Ilium at upper rim of acetabulum

Rectus Femoris Insertion

Patella, Tibial tuberosity via patellar ligament

Rectus Femoris Action

Extension of knee, Assist flexion of femur

Rectus Femoris Innervation

Femoral n L2, L3, L4

Vastus Lateralis Origin

Linea aspera of femur, Greater trochanter of femur

Vastus Lateralis Insertion

Patella, Tibial tuberosity via patellar ligament

Vastus Lateralis Action

Extension of knee

Vastus Lateralis Innervation

Femoral n L2, L3, L4

Vastus Medialis Origin

Linea aspera of femur, Intertrochanteric line of femur

Vastus Medialis Insertion

Patella, Tibial tuberosity via patellar ligament

Vastus Medialis Action

Extension of knee

Vastus Medialis Innervation

Femoral n L2, L3, L4

Vastus Intermedius Origin

Anterior and lateral femoral shaft

Vastus Intermedius Insertion

Patella, Tibial tuberosity via patellar ligament

Vastus Intermedius Action

Extension of knee

Vastus Intermedius Innervation

Femoral n L2, L3, L4

Pectineus Origin

Superior ramus of anterior pubis

Pectineus Insertion

Pectineal line of femur inferior to lesser trochanter

Pectineus Action

Flexion of femur, Adduction of femur. Assists medial rotation of femur.

Pectineus Innervation

Femoral L2-3

Adductor Brevis Origin

Anterior pubis body and inferior ramus

Adductor Brevis Insertion

Linea aspera of femur - proximal part. Pectineal line of femur

Adductor Brevis Action

Adduction of femur, Assist flexion of femur

Adductor Brevis Innervation

Obturator n L2, L3, L4

Adductor Longus Origin

Anterior pubis body, inferior to pubic crest

Adductor Longus Insertion

Middle 1/3 of linea aspera of femur

Adductor Longus Action

Adduction of femur, Assist flexion of femur

Adductor Longus Innervation

Obturator n L2, L3, L4

Adductor Magnus Origin

Anterior head: Inferior ramus of pubis Posterior head: Ischial tuberosity, Ramus of ischium

Adductor Magnus Insertion

Anterior head: Linea aspera of femur Posterior head: Adductor tubercle of femur

Adductor Magnus Action

Adduction of femur Anterior head: Assists flexion and medial rotation of femur Posterior head: Assists extension and lateral rotation of femur.

Adductor Magnus Innervation

Anterior head: Obturator n L2, L3, L4. Posterior head: Sciatic n L4

Gracilis Origin

Inferior ramus of anterior pubis

Gracilis Insertion

Medial proximal tibia

Gracilis Action

Adduction of femur, Assists knee flexion, Assists medial rotation of tibia when knee is flexed

Gracilis Innervation

Obturator n L2-3

Gluteus Maximus Origin

Posterior sacrum, Ilium via sacrotuberous ligament, Posterior superior gluteal line of ilium

Gluteus Maximus Insertion

Gluteal tuberosity of femur, Iliotibial tract (attaching to the lateral condyle of tibia)

Gluteus Maximus Action

Extension of femur, Lateral rotation of extended hip

Gluteus Maximus Innervation

Inferior gluteal n L5, S1, S2

Gluteus Medius Origin

Iliac crest of ilium, Ilium between posterior (superior) and anterior (middle) gluteal lines

Gluteus Medius Insertion

Greater trochanter of femur

Gluteus Medius Action

ABDuction of femur Anterior: medial rotation of femur

Gluteus Medius Innervation

Superior gluteal n L5, S1

Gluteus Minimus Origin

Posterior ilium between anterior (middle) and inferior gluteal lines

Gluteus Minimus Insertion

Anterior surface of greater trochanter of femur

Gluteus Minimus Action

ABDuction & medial rotation of the femur

Gluteus Minimus Innervation

Superior gluteal n L5, S1

Tensor Fascia Lata Origin

Iliac crest - posterior to anterior superior iliac spine

Tensor Fascia Lata Insertion

Iliotibial tract attaches to the lateral condyle of the tibia

Tensor Fascia Lata Action

Assists flexion of femur. Assists ABDuction of femur. Assists medial rotation of femur. Assists stability of extended knee in standing and ambulation. Assists extension of knee.

Tensor Fascia Lata Innervation

Superior gluteal n L5, S1

Gemellus Superior Origin

Ischial spine

Gemellus Superior Insertion

Greater trochanter of femur

Gemellus Superior Action

Lateral rotation of femur

Gemellus Superior Innervation

N to obturator internus L5, S1

Piriformis Origin

Anterior sacrum, Sacral Ligament

Piriformis Insertion

Greater trochanter of femur

Piriformis Action

Lateral rotation of femur

Piriformis Innervation

N to piriformis S1, S2

Obturator Internus Origin

Obturator foramen

Obturator Internus Insertion

Greater trochanter of femur

Obturator Internus Action

Lateral rotation of femur

Obturator Internus Innervation

N to obturator internus L5, S1

Gemellus Inferior Origin

Ischial tuberosity

Gemellus Inferior Insertion

Greater trochanter of femur

Gemellus Inferior Action

Lateral rotation of femur

Gemellus Inferior Innervation

N to quadratus femoris L5, S1

Quadratus Femoris Origin

Ischial tuberosity

Quadratus Femoris Insertion

Quadrate tubercle of femur

Quadratus Femoris Action

Lateral rotation of femur

Quadratus Femoris Innervation

N to quadratus femoris L5, S1

Biceps Femoris Origin

Long head: Ischial tuberosity Short head: Linea aspera

Biceps Femoris Insertion

Lateral aspect of head of fibula, Lateral condyle of tibia

Biceps Femoris Action

Flexion of knee, Lateral rotation of tibia when knee is flexed, Long head: Extension of femur

Biceps Femoris Innervation

Long head: Sciatic n - tibial division L5, S1, S2 Short head: Sciatic n - fibular division L5, S1, S2

Semitendinosus Origin

Ischial tuberosity

Semitendinosus Insertion

Anterior proximal tibial shaft

Semitendinosus Action

Extension of femur, Flexion of knee, Medial rotation of tibia when knee is flexed

Semitendinosus Innervation

Sciatic n - tibial division L5, S1, S2

Semimembranosus Origin

Ischial tuberosity

Semimembranosus Insertion

Posterior medial tibial condyle

Semimembranosus Action

Extension of femur, Flexion of knee, Medial rotation of tibia when knee is flexed

Semimembranosus Innervation

Sciatic n - tibial division L5, S1, S2

Frontalis Origin

Skin and fascia of eyebrows

Frontalis Insertion

Epicranial aponeurosis

Frontalis Action

Elevate eyebrows. Wrinkling of forehead. Pulling of scalp anteriorly

Frontalis Innervation

Facial n (CN VII)

Occipitalis Origin

Nuchal line of occipital bone

Occipitalis Insertion

Epicranial aponeurosis

Occipitalis Action

Pulling of scalp posteriorly

Occipitalis Innervation

Facial n (CN VII)

Temporal Origin

Lateral surface of temporal bone

Temporal Insertion

Mandible - coronoid process, ramus

Temporal Action

Elevate mandible. Retrusion of mandible. UNI: Lateral deviation of mandible to same side

Temporal Innervation

Trigeminal n (CN V)