Lower limb Flashcards
(93 cards)
List the structures of the femur
- Head of femur
- Neck of femur
- Inferior acetabular notch = break at edge of socket
- Transverse acetabular ligament = ligament across inferior acetabular notch
- Greater trochanter
- Lesser trochanter
- Lateral and medial condyle
- Patellar surface
Label the structures of the femur


List the muscles of the anterior thigh
- Sartorius
- Quadriceps
- Rectus femoris
- Vatus lateralis
- Vatus intermedius
- Vastus medius
- Poas
- Iliacus
- Tensor fascia lata
Describe the site, attachment, action and nerve supply of the sartorius muscle
- Site: Anterior thigh
- Attachments: ASIS - medial aspect of tibia
- Movement: hip flexion and lateral rotation, knee extension
- Nerve supply: femoral
Describe the site, attachment, action and nerve supply of the psoas and iliacus muscle
Psoas
- Site: anterior hip
- Attachment: lumbrar spine - lesser trochanter
- Movement: hip flexion, trunk flexion
- Nerve supply: branch of lumbar plexus
Iliacus
- Site: anterior hip
- Attachment: Iliac fossa - lessser trochanter
- Movement: Hip flexion
- Nerve supply: femoral
Describe the site, attachment, action and nerve supply of the quadriceps muscles
Rectus femoris
- Site: anterior thigh
- Attatchment: attaches to the ASIS - tibial tuberosity via quadriceps tendon
- Movement: Knee extension, hip flexion
- Nerve supply: femoral nerve
Vastus lateralis, vastus intermedius and vastus medialis
- Site: Vastus lateralis - antero-lateral thigh, vastus intermedius - anteior thigh. vastus medialis - antero-medial thigh
- Attatchment: attach to femur - tibial tuberosity via quadriceps tendon
- Movemement: knee extension
- Nerve supply: femoral nerve
Describe the location, action and nerve supply of the tensor fascia lata
Location: Fascia lata lies within fascia of antero-lateral hip
Role: By tensing the fascia lata it provides lateral support to the knee as the knee comes into extension
Nerve supply: femoral nerve
Describe the borders ( + floor and roof) and contents of the femoral triangle
Muscles
Borders
- Lateral border - Sartorius
- Medial border - Adductor longus
- Superior border - Inguinal ligament
- Floor - Pectineus, distal tendon of iliacus and psoas
- Roof - skin
Innervation - Femoral
- Nerve
- Artery
- Vein
- Y-fronts (i.e., the midline)
Label the structures of the femoral triangle


Label the structure of the anterior thigh and leg. Also mention any muscles that are deep and not shown

Vastus intermedialis is deep to rectus femoris

List the muscles of the medial thigh and their main role
Gracialis
Adductor muscles
- Adductor longus
- Adductor Brevis
- Adductior magnus
Pectineus
Role: Adduction of lower limbs
Which muscle in the medial compartment of the thigh has a role in adduction AND extension of the hip joint?
Adductor magnus
Describe the site, attachment, action and nerve supply of Gracillis
- Site - medial thigh
- Attatchment - heads from pelvis, along medial side and attaches to medial aspect of tibia. Shares attachment with sartorius and semitendinosus
- Action - Hip adduction, knee flexion
- Nerve supply - Obturator nerve
Describe the site, attachment, action and nerve supply of the adductor muscles
Adductor longus (most superficial and longest muscle)
Adductor brevis - deep and proximal to adductor longus
Adductor magnus - proximal to adductor brevis and largest, most powerful muscle of the hip
Attachment: body of pubis, inferior to pubic crest and lateral to the pubic symphysis
Movement: Hip adduction
Innervation: obturator nerve
Describe the site, attachment, action and nerve supply of pectineus
- Site: Antero-medial thigh
- Attachment: Body of pubis - medial aspect of tibia
- Movement: hip adduction
- Nerve supple: femoral nerve
a) What muscles do the posterior portion of the adductor muscles share an attachment with? Where is this attachment?
b) A portion of the adductor magnus of the ‘hamsting portion’ will recieve the same nerve supply. What is the nerve supply?
a) Posterior portion of the adductor muscles shares an attachment with the 3 hamstring muscles. The attachment is the ischial tuberosity
b) Sciatic nerve
Label the structures of the medial thigh


Label the structures of the medial thigh


List the muscles in the posterior thigh and describe their main action and their nerve supply
- Biceps femoris
- Semimembranosus
- Semintendinosus
Main adduction: hip extension and knee flexion
Nevre supply: Sciatic nerve
Label the muscles of the posterior thigh


Describe the site, attachment, action and nerve supply of the 3 hamsting muscles
Semimembranosus
- Site - posterior thigh
- Attachment - Ischial tuberosity - medial aspect of tibia (pes anserine insertion)
- Action - Hip extension, knee flexion, medially rotates leg of unplanted limb
- Nerve supply - Tibial portion of sciatic nerve
Semitendinosus
- Site - posterior thighAttachment - ischial tuberosity- postero-medial aspect of tibia. Reflection gives oblique popliteal ligament
- Action - Hip extension, knee flexion, medially rotates leg of unplanted limb
- Nerve supply - Tibial portion of sciatic nerve
Biceps femoris - short head and long head (deep to long head)
- Site -posterior thigh
- Attachment - ischial tuberosity (long head) and linea aspera (short head) to head of fibula
- Action - Hip extension, knee flexion, laterally rotates leg of unplanted limb
- Nerve supply - Tibial portion of sciatic nerve (long head), Common peroneal (fibular) portion of sciatic nerve (short head)
List the muscles of the gluteal region
- Gluteal maximus
- Gluteal medius
- Gluteal minimus
- Piriformis
- Obturator internus
- Superior and inferior gemelli
- Obturator externus
- Quadratus femoris
Describe the site, attachment, action and nerves supply of the gluteal muscles
Gluteal maximus
- Site - Posterior hip
- Attachment: Ilium, sacrum, coccyx and sacrotuberous ligament - posterior femur and lateral aspect of tibia via iliotibial tract
- Function: Hip extension
- Innervation: Inferior gluteal nerve
Gluteus medius and gluteus minimus
- Site: postero-lateral hip
- Attachment: Ilium - greater trochanter
- Action: Hip abduction and medial/internal rotation of hip
- Innervation: Superior gluteal nerve
Describe the site, attachments, nerve supply and action of the following muscles:
a) Piriformis
b) Superior and inferior gemelli
a) Piriformis
- Site - posterior hip
- Attachments - sacrum - greater trochanter
- Action - lateral hip rotation
- Nerve supply - sacral plexus
b) Superior and inferior gemelli
- Site - posterior hip
- Attachments - ischial spine (inferior), ischial tuberosity (superior) - greater trochanter
- Action - lateral hip rotation
- Nerve supply- nerve to obturator internus (superior) and nerve to quadratus femoris (inferior)




























