Posterior Thigh - Poplitieal Fossa Flashcards
Which muscle creates the characteristic calf shape?
Gastrocnemius
Which muscle lies beneath the gastrocnemius?
Soleus
What are the boundaries of the popliteal fossa?
- Biceps Femoris (superilateral)
- Semitendinosis and semimembranosis (Superomedial)
- Gastrocnemius (Inferior)
What are the contents of the popliteal fossa?
Popliteal artery and vein
What is the Cutaneous innervates of the posterior aspect of the thigh?
Upper Part - Posterior cutaneous nerve of thigh
Lower latera half - Medial Sural Cutaneous And Sural nerve
What are the muscles of the posterior thigh?
A. Glutei
Maximus
MEdius
Minimus
B. Other small muscles Piriformis Obturator Internus Superior gemellus Inferior gemellus Quadratus lamborum
What are the nerve contents of the posterior thigh?
- Sciatic N
- Superior Gluteal n
- Inferior gluteal n
- Post cutaneous n of thigh
- Nerve to Obturator internus
- Nerve to quadratus lamborum
- Pudendal n
What are the vessels contents of the posterior thigh?
- Sup gluteal
- Inf gluteal
- Internal Pudendal
What structure pass through the greater sciatic foramen above the Piriformis?
Superior gluteal nerves and vessels
What structures pass through the greater sciatic foramen below the Piriformis?
- Inf gluteal nerves/vessels
- Sciatic nerve
- Ps cutaneous n. Of thigh
- n. To QF
- n. To ObInt
- Pudendal n.
- Internal pudendal vessels
What structures make up the greater sciatic foramen?
- Greater sciatic notch
- Sacrotuberous ligament
- Sacrospinous ligament
What structures make up the lesser sciatic notch?
- Lesser sciatic notch
- Sacrotuberous ligament
- Sacrospinous ligament
What structures pass through the lesser sciatic foramen?
- Tendon Of Obturator Internus
- N. To ObtInt
- Pudendal n.
- Int Pudendal vessels
The is the primary origin of the gluteus Maximus?
Back of sacrum &
coccyx & back of
Sacrotuberous
ligament.
What are the attachments and actions of the Gluteus minimus?
Ant gluteal surface of ilium —> Ant surface of the greater trochanter
Abducts femur; Medially rotates thigh
What are the attachments And actions of the gluteus medius?
Middle part of the gluteal surface of Ilium —> Lat surface of greater trochanter
abducts the femur; medially
rotates the thigh
What are the attachments and actions of gluteus Maximus?
Pos gluteal surface of ilium + Back of sacrum &
coccyx & back of
Sacrotuberous
ligament. —> Iliotibial Tract + Gluteal tuberosity of femur
Extends thigh; laterally rotates femur
What are the lateral rotators of the thigh?
- Sup/Inf gemellus
- Obturator Int/Ext
- Quadratus femoris
- Piriformis
What are the muscles which make up the Hamstrings?
- Bicepts Femoris
- Semimembranous
- Semitendinous