Anatomy Jelena - Lower Extremity

Front 1

Pectineus Muscle

Back 1

Anterior thigh

Front 2

Psoas Major Muscle

Back 2

Anterior thigh

Front 3

Psoas Minor Muscle

Back 3

Anterior thigh

Front 4

Illiacus Muscle

Back 4

Anterior thigh

Front 5

Sartorius Muscle

Back 5

Anterior thigh

Front 6

Rectus Femoris Muscle

Back 6

Part of quadriceps femoris;

Anterior thigh

Front 7

Vastus Lateralis Muscle

Back 7

Part of quadriceps femoris;

Anterior thigh

Front 8

Vastus Medialis Muscle

Back 8

Part of quadriceps femoris; Anterior thigh

Front 9

Vastus Intermedius Muscle

Back 9

Part of quadriceps femoris; Anterior thigh

Front 10

4 Muscles of Quadriceps Femoris

Back 10

1. Vastus Intermedius Muscle

2. Vastus Medialis Muscle

3. Vastus Lateralis Muscle

4. Rectus Femoris Muscle

Front 11

Adductor Longus Muscle

Back 11

Medial Thigh

Front 12

Adductor Brevis Muscle

Back 12

Medial Thigh

Front 13

Adductor Magnus Muscle (adductor part)

Back 13

Medial Thigh

Front 14

Adductor Magnus Muscle (hamstrings part)

Back 14

Medial Thigh

Front 15

Gracilis Muscle

Back 15

Medial Thigh

Front 16

Obturator Externis Muscle

Back 16

Medial Thigh

Front 17

Semitendinosus Muscle

Back 17

Posterior Thigh

Front 18

Semimembranosus Muscle

Back 18

Posterior Thigh

Front 19

Biceps Femoris Muscle

Back 19

Posterior Thigh

Front 20

Femoral Triangle

Back 20

-Bordered by sartorus muscle laterally, adductor longus muscle medially, and inguinal ligament (extends from anterior superior iliac spine to pubic tubercle) at the base

-The floor is made up of the iliopsas muscle laterally and the pectineus muscle medially

-Femoral Nerve and Femoral Sheath lie within it

Front 21

Femoral Sheath Order

Back 21

NAVEL:

Nerve

Artery

Vein

Empty space

for Lymph nodes

from lateral to medial

Think venus to the penis!

Front 22

Femoral Nerve

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Back 22

Arises from the lumbar plexus (L1-L4), descends into thigh, passes posterior to the inguinal ligament and anterior to the iliopsas muscle; in the thigh it lies lateral to femoral sheath; ends distal to inguinal ligament by splitting into lots of muscular and cutaneous branches

Front 23

Femoral Artery: origin and branches

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Back 23

Origin: direct continuation of external iliac artery

Branches:

1. deep femoral artery, which runs parallel and posterior to the femoral artery and lies on the anterior surface of adductor magnus, then penetrates it to innervate posterior compartment

2. medial femoral circumflex artery, passes between the pectineus and psoas major muscles to enter posterior compartment on medial side of femur to supply head and neck of femur

Front 24

Adductor Canal (what does it contain and what are its borders?)

Back 24

-Contains femoral vessels (vein and artery)

and saphenous nerve, a branch of the femoral nerve that innervates the skin on the medial half of the knee and leg

-Vastus medius, Sartorius, and Adductor Longus