slideshow: femoral triangle

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The Femoral Triangle

The Femoral Triangle is a region found at the medial aspect of the upper thigh

The Femoral Triangle is a region found at the medial aspect of the upper thigh

The floor of the triangle is gutter shaped

Femoral Triangle Boundaries

Superior Border•Inguinal ligament

Inguinal ligament Right Femoral Triangle

Femoral Triangle Boundaries

Superior Border•Inguinal ligament

Lateral Border•Sartorius – medial edge

Inguinal ligament Right Femoral Triangle

sartorius

Femoral Triangle Boundaries

Superior Border•Inguinal ligament

Lateral Border•Sartorius – medial edge

Inguinal ligament Right Femoral Triangle

sartorius

Femoral Triangle Boundaries

Superior Border•Inguinal ligament

Lateral Border•Sartorius – medial edge

Medial Border•Adductor Longus

- medial edge

Inguinal ligament Right Femoral Triangle

Addu

ctor

long

ussartorius

Femoral Triangle Boundaries

Superior Border•Inguinal ligament

Lateral Border•Sartorius – medial edge

Medial Border•Adductor Longus

- medial edge

Inguinal ligament Right Femoral Triangle

Addu

ctor

long

ussartorius

Femoral Triangle Boundaries

Superior Border•Inguinal ligament

Lateral Border•Sartorius – medial edge

Medial Border•Adductor Longus

- medial edge

Inguinal ligament Right Femoral Triangle

mediallateral

Addu

ctor

long

ussartorius

Floor of the Femoral Triangle

Inguinal ligament Right Femoral Triangle

mediallateral

Addu

ctor

long

ussartoriusThe floor of the Femoral Triangle

consists of 3 muscles

It is not flat but gutter shaped

Floor of the Femoral Triangle

Inguinal ligament Right Femoral Triangle

mediallateral

Addu

ctor

long

ussartorius

From lateral to medial

Floor of the Femoral Triangle

Inguinal ligament Right Femoral Triangle

mediallateral

Addu

ctor

long

ussartorius

From lateral to medial

Iliacus

Floor of the Femoral Triangle

Inguinal ligament Right Femoral Triangle

mediallateral

Addu

ctor

long

ussartorius

From lateral to medial

Iliacus

Psoas Majorpsoasmajor

Floor of the Femoral Triangle

Inguinal ligament Right Femoral Triangle

mediallateral

Addu

ctor

long

ussartorius

From lateral to medial

Iliacus

Psoas

Pectineus and Adductor Longus

psoaspectineus

Femoral Triangle ContentsFrom Lateral to Medial

N - Femoral Nerve

Femoral Triangle ContentsFrom Lateral to Medial

N - Femoral Nerve

A - Femoral Artery

Femoral Triangle ContentsFrom Lateral to Medial

N - Femoral Nerve

A - Femoral Artery

V - Femoral Vein

Femoral Triangle ContentsFrom Lateral to Medial

N - Femoral Nerve

A - Femoral Artery

V - Femoral Vein

(femoral canal containing lymph nodes)

Femoral Triangle ContentsFrom Lateral to Medial

N - Femoral Nerve

A - Femoral Artery

V - Femoral VeinInside Femoral Sheath

(femoral canal containing lymph nodes)

Blood Supply

External Iliac ArteryArterial Supply

Common Femoral Artery

External Iliac ArteryArterial Supply

Common Femoral Artery

Superficial Femoral Artery

External Iliac ArteryArterial Supply

Common Femoral Artery

Superficial Femoral Artery

External Iliac ArteryArterial Supply

Common Femoral Artery

Superficial Femoral Artery

External Iliac Artery

Deep Femoral Artery or

Profunda Femoris

Arterial Supply

Common Femoral Artery

Superficial Femoral Artery

External Iliac Artery

Deep Femoral Artery or

Profunda Femoris

Medial Circumflex Femoral Artery

Arterial Supply

Common Femoral Artery

Superficial Femoral Artery

External Iliac Artery

Deep Femoral Artery or

Profunda Femoris

Medial Circumflex Femoral Artery

Lateral Circumflex Femoral Artery

Arterial Supply

Femoral VeinDeep System

Venous System

Great Saphenous VeinSuperficial System

Femoral VeinDeep System

Venous System

Great Saphenous VeinSuperficial System

Femoral VeinDeep System

Sapheno-Femoral Junction

Venous System

Summary of Muscles in the Femoral Triangle

SartoriusOrigin Anterior superior iliac spine

Insertion Superior aspect medial surface of tibial shaft

Action Flexes, adducts and laterally rotates the hip joint and flexes the knee

Nerve Supply Anterior division of femoral nerve (L3, L4)

Blood Supply Femoral artery

Anterior Thigh

Hip FlexorsIliacus

Origin Upper 2/3 of iliac fossa of ilium, lateral aspect of sacrum

Insertion Lesser trochanter inferior aspect

Action Flexes and medially rotates hipNerve Supply Muscular branch of femoral

nerve (L2, L3)Blood Supply Lumbar branch of iliopsoas

branch of internal iliac artery

Hip FlexorsPsoas

Origin Anterior surfaces and lower borders of transverse processes of L1 - L5 and bodies and discs of T12 - L5

Insertion Lesser trochanterAction Flexes and medially rotates the

hipNerve Supply Anterior primary rami L1,2 Blood Supply Lumbar branch of iliopsoas

branch of internal iliac artery

Anterior Thigh

PectineusOrigin Pectineal surface of the pubisInsertion Pectineal line of femur below lesser

trochanterAction Adducts the thigh, flexes hip jointNerve Supply Femoral nerve & some innervation

from the obturator nerve (L2, L3, L4)

Blood Supply Medial circumflex femoral branch of femoral artery and obturator artery

Adductor LongusOrigin Anterior surface of body of pubis,

just lateral to pubic symphysisInsertion Middle third of linea aspera,

between the more lateral adductor magnus and brevis insertions and the more medial origin of the vastus medialis

Action Adducts, flexes and medially rotates the hip joint

Nerve Supply Anterior division of obturator nerve (L2, L3, L4)

Blood Supply Obturator artery and medial circumflex femoral artery

Anterior Thigh

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