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45 Cards in this Set

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What muscles arise from Anterior Superior Iliac Spine?
Tensor Fascia Latae

Sartorius
What muscle arise from Anterior Inferior Iliac Spine?
Rectus Femoris
Quadriceps Femoris
Vastus Lateralis
Vastus Medius
Vastis Intermedius
Rector femoris

-->flex the thigh and extend the knee

-->part of the Anterior compartment
-->ORGIN: vastus from the femur, restus from the AIIS
-->INSERTION: by common tendon onto the tibial tuberosity
-->INNERVATION: femoral nerve
Actions of the QUADRICEPS FEMORIS:
Vastus Group: extend the knee

Rectus femoris: extend the knee and flex the thigh
Anterior Group of the Thigh
Quadriceps femoris
Sartorius
Iliiopsoas

-->innervated by the FEMORAL NERVE
-->Psoas major innervated by the ventral primary rami of lumbar nerves
Sartorius
ORGIN: Anterior Superior Iliac Spine
INNERVATION: femoral nerve

-->longest muscle in body

ACTION: flexes the hip and knee
Iliopsoas
-->composed of Psoas Major and the Iliacus

PSOAS MAJOR: origin from lumbar vert.; insertion at the lesser trochanter of femur

Iliacus: orgin from iliac fossa and insertion on the lesser trochanter

MOST POWERFUL FLEXOR OF THE THIGH
Tensor Fasciae Latae
ORGIN: ASIS
INSERTION: iliotibial tract
INNERVATION: Superior Gluteal Nerves

ACTION: abduct and flex the thigh
Superior Gluteal Nerves
Innervate: Gluteus Maximus and Tensor Latae

-->found arising from the Greater Sciatic Foramen ABOVE the Piriformis muscle
Adductor Compartment of the Thigh
adductor longus
adductor brevis
adductor magnus
pectineus
gracilis

-->enclosed by the FASCIA LATA, and unnamed compartment, and the MEDIAL INTERMUSCULAR SEPTUM

-->innervated by the OBTERATOR N. except for
-->PECTINEUS (femoral n.)
-->part of ADDUCTOR MAGNUS (tibial n.)
Pectineus
-->INNERVATION: femoral n. and sometimes the obturator n.
-->ACTION: adduct the thigh

-->arises from the superior pubic ramus
Gracilis
INNERVATION: obturator n.

ACTION: adduct thigh, flex knee

INSERTS: on the PES ANSERINUS
Pes Anserinus
common tendon of the :

Gracilis
Sartorius
Semitendinosus

Insertion onto the medial tibia
Adductor magnus
-->has both a hamstring and an adductor component

HAMSTRING COMPONENT: arises from the ischial tuberosity; innervated by the tibial n.
Obturator Internus Action
lateral rotator of the hip
Hamstring compartment
Semitendinosus
Semimembranous
Biceps Femoris
Adductor magnus (portion)

-->innervation via TIBIAL N.
-->enclosed by the FASCIA LATA, unnamed compartment, and the LATERAL INTERMUSCULAR SEPTUM

-->MAIN ACTION: flex knee and extend the thigh
Biceps femoris
-->arises from the femur and lateral intermuscular septum

-->innervated by the COMMON FIBRILAR N. which is a branch of the sciatic n.
Common FIbrilar Nerve
-->branch of the Sciatic N.

-->innervates the Biceps Femoris
Femoral Triangle
-->inguinal
-->medial border of the Sartorius
-->lateral border of the Adductor Longus

ROOF: skin, tela subcutanea, fascia lata

FLOOR: iliopsoas, pectineus, adductor longus
Femoral Sheath
Femoral artery, vein and sheath
Lymph nodes

-->continuous with the TRANSVERSALIS FASCIA (anteriorly) and the ILIAC FASCIA (posteriorly)

Does NOT contain Femoral Nerve
Femoral Canal
-->most medial compartment within the femoral sheath

-->extends distally to the SAPHENOUS HIATUS

--> allows for expansion of the femoral vein at times of increased venous return
Femoral Ring
-->abdominal opening of the femoral canal

LATERAL: femoral vein
ANTERIOR: inguinal ligament
MEDIAL: lacunar ligament
POSTERIOR: pubis covered by pectineal ligament and pectineus muscle
Femoral Hernia
protrusion of the abdominal contents through the femoral ring

may herniate through the saphenous ring into the tela subQ.
Adductor Canal
(Hunter's Canal)

tunnel deep to the middle 1/3 of the SARTORIUS muscle

begins where the sartorius crosses the adductor longus

ends at the adductor hiatus in the tendon of the adductor magnus

CONTENTS: femoral artery/vein, saphenous vein, saphenour nerve, n. to vastus medialis
Femoral Artery
BEGINS: inguinal ligament where exits femoral canal--->from EXTERNAL ILIAC ARTERY

ENDS: as the POPLITEAL via adductor hiatus

BRANCHES:
Descending Genicular A.
Profunda Femoris A.
Profunda Femoris A.
--> branch of the Femoral A. close to the exit of the femoral a. through the inguinal canal

-->gives off:
1. Medial Femoral Circumflex A.: supplies head and neck of femur
2. Lateral Femoral Circumflex A.
Cruciate Anastomosis
-->in posterior aspect of the thigh

-->involves following:
Inferior Gluteal A.
Medial and Lateral Femoral Circumflex A.
First Perforating Branch of Profunda Femoris A.

-->collateral route of circulation should femoral a. be occluded
Femoral Nerve
--> L2-L4

--> derived from the dorsal part of the plexus
-->goes to the anterior compartment of the leg and medial aspect of the leg

INJURY = WEAKNESS/LOSS OF SENSATION AT THE KNEE
Obturator Nerve
---> L2-L4

--> derived from the VENTRAL part of plexus
-->supplies the ventral muscles (adductor) of thigh
--> supplies the hip and knee joint

HIP PAIN REFERRED TO KNEE
Sciatic Nerve
1. Common Tibial Nerve (L4-S3)
---->derived from the ventral part of the sacral plexus

2. Common Fibular Nerve (L4-S2)
----->derived from the dorsal part of the sacral plexus and to the dorsal musculature (short head of biceps)
Tibial Nerve
---> L4-S3

-->derived from the VENTRAL part of the sacral plexus
-->distributed to the original ventral musculature (Hamstring)
Common Fibular Nerve (Peroneal N.)
----->L4-S2

---> derived from the dorsal part of the sacral plexus
-->distributed to the original dorsal musculature (short head of biceps)
Action of the Vastus Group:
to extend the knee
Action of the rectus femoris
flex the hip
extend the knee
Gracilis Action
--->flex knee
--->adduct thigh
Adductor Magnus Action
extend the thigh
Pectineus Action
-->flex thigh
-->adduct thigh
Sartorius Action
-->flex knee
-->flex hip
Iliopsoas Action
-->STRONGEST hip flexor
Tensor Latae Action
-->abduct thigh
-->flexes thigh
-->keeps knee extended
Obterator Externus Action
-->lateral rotator of the hip
Biceps Femoris Action
-->extend the thigh
-->flex knee
Piriformis
ORIGIN: anterior aspect of sacrum
INSERTION: the greater trochanter
-->passese trough the greater sciatic foramen

ACTION:
--> lateral rotator of thigh
-->abduct the hip (if flexed)
Above the PIRIFORMIS
Superior gluteal nerves

Superior gluteal vessels
Below the PIRIFORMIS
Inferior gluteal nerves and vesels

Sciatic Nerve

Posterior cutaneous femoral nerve

Nerve to Obterator internus

Pudendal Nerve
Internal pudendal vessels