Anterior Thigh Muscles Flashcards Preview

Gross Anatomy > Anterior Thigh Muscles > Flashcards

Flashcards in Anterior Thigh Muscles Deck (10):
1

Pectineus (Origin, Insertion, Innervation, Action-3)

Origin: Superior Ramus of pubis

Insertion: Pectineal line of femur (Just inferior to lesser trochanter)

Innervation: Femoral Nerve

Action:
-Adducts thigh
-Flexes thigh
-Medial Rotation of thigh

2

Sartorius (Origin, Insertion, Innervation, Action-4)

Origin: ASIS

Insertion: Superior part of medial surface of tibia

Innervation: Femoral Nerve

Action:
-Flexes thigh
-Abducts
-Laterally rotates thigh
-Flexes leg at knee

3

Psoas Major (Origin, Insertion, Innervation)

Origin: Sides of T12-L5 vert, transverse processes of all lumbar vert.

Insertion: Lesser trochanter of femur

Innervation: Anterior rami of lumbar nerves (L1, L2, L3)

4

Iliacus (Origin-4, Insertion-2, Innervation)

Origin:
-Iliac crest
-Iliac fossa
-Ala of sacrum
-Anterior sacroiliac ligament

Insertion:
-Tendon of psoas major
-Lesser trochanter

Innervation: Femoral Nerve

5

Iliopsoas Action

Flexes/stabilizes thigh at hip joint

6

Rectus Femoris Origin

AIIS (Anterior Inferior Iliac Spine)

*Also helps iliopsoas flex thigh*

7

Vastus Lateralis Origin-2

-Greater trochanter
-Lateral lip of linea aspera

8

Vastus Medialis Origin-2

-Intertrochanteric line
-Medial lip of linea aspera

9

Vastus Intermedius Origin

Anterior & Lateral surfaces of shaft of femur

10

Quadriceps Femoris (Insertion, Innervation, Action)

Insertion:
-Quadriceps tenton->Base of patella->Patellar ligament->Tibial tuberosity
-Medial and lateral vasti aso attach to tibia & patella via aponeuroses (Medial and lateral patellar retinacula

Innervation: Femoral Nerve (L2,L3,L4)

Action: Extends leg at knee