Lower Limb 2 Posterior Thigh and Popliteal Fossa

Question 1

What are hamstring muscles?

Answer 1

Semimembranosus
Semitendinosus
Biceps Femoris Long Head

Question 2

Semimembranosus - Origin

Answer 2

Ischial Tuberosity

Question 3

Semimembranosus - Insertion

Answer 3

Medial Tibial Condyle

Question 4

Semimembranosus - Innervation

Answer 4

Tibial part of Sciatic Nerve (L4-S3)

Question 5

Semimembranosus - Action

Answer 5

Extends hip
Flexes Knee
Medially rotates thigh at hip joint and knee joint

Question 6

Semitendinosus - Origin

Answer 6

Ischial Tuberosity

Question 7

Semitendinosus - Insertion

Answer 7

Medial Surface of proximal tibia

Question 8

Semitendinosus - Innervation

Answer 8

Tibial part of sciatic nerve (L4-S3)

Question 9

Semitendinosus - Action

Answer 9

Extends hip
Flexes knee
Medially rotates Thigh and leg

Question 10

Biceps Femoris (Long Head) - Origin

Answer 10

Ischial Tuberosity

Question 11

Biceps Femoris (Long Head) - Insertion

Answer 11

Tendon with short head into head of fibula

Question 12

Biceps Femoris (Long Head) - Innervation

Answer 12

Tibial Part of sciatic nerve (L4-S3)

Question 13

Biceps Femoris (Long Head) - Action

Answer 13

Flexes leg at knee
Extends leg at hip
Laterally rotates at hip
Laterally rotates at knee

Question 14

Biceps Femoris (short head) - Origin

Answer 14

Linea Aspera on posterior femur

Question 15

Biceps Femoris (short head) - Insertion

Answer 15

Tendon with long head into head of fibula

Question 16

Biceps Femoris (short head) - Innervation

Answer 16

Common fibular part of sciatic nerve

Question 17

Biceps Femoris (short head) - Action

Answer 17

Flexes leg at knee

Laterally rotates knee

Question 18

Adductor Magnus (Hamstrings Part) - Origin

Answer 18

Ischial tuberosity

Question 19

Adductor Magnus (Hamstrings Part) - Insertion

Answer 19

Adductor Tubercle

Supracondylar Line

Question 20

Adductor Magnus (Hamstrings Part) - Innervation

Answer 20

Tibial part of sciatic nerve (L4-S3)

Question 21

Adductor Magnus (Hamstrings Part) - Action

Answer 21

Extends thigh at hip

Question 22

Adductor Magnus (Adductor Part) - Origin

Answer 22

Ischiopubic Ramus

Question 23

Adductor Magnus (Adductor Part) - Insertion

Answer 23

Posterior Surface of Femur
Linea Aspera
Medial Supracondylar ridge

Question 24

Adductor Magnus (Adductor Part) - Innervation

Answer 24

Posterior Division of obturator nerve (L2-L4)

Question 25

Adductor Magnus (Adductor Part) - Action

Answer 25

Adducts and medially rotates thigh at hip

Question 26

Borders of Popliteal Fossa

Answer 26

Supero-lateral - Biceps femoris Supero- medial - Semimembranosus, semitendinosus Infero-medial - gastrocnemius (medial head) Infero-lateral - gastrocnemius (lateral head)

Question 27

Contents of popliteal fossa

Answer 27

``` Tibial Nerve Common Fibular Nerve Popliteal Artery Small Saphenous Vein Popliteal Vein Popliteal Lymph nodes ```

Question 28

Gastrocnemius - Origin

Answer 28

Medial Head - Posterior surface of distal femur superior to medial condyle Lateral HEad- Upper posterolateral surface of lateral femoral condyle

Question 29

Gastrocnemius - Insertion

Answer 29

Via calcaneal tendon to posterior surface of calcaneus

Question 30

Gastrocnemius - Innervation

Answer 30

Tibial Nerve (L4-S3)

Question 31

Gastrocnemius - Action

Answer 31

Plantarflexes Foot | Flexes Knee

Question 32

Plantaris - Origin

Answer 32

Inferior Part of lateral supercondylar line of femur | Oblique popliteal ligament of knee

Question 33

Plantaris - Insertion

Answer 33

Via calcaneal tendon to posterior surface of calcaneus

Question 34

Plantaris - Innervation

Answer 34

Tibial Nerve (L4-S3)

Question 35

Plantaris - Action

Answer 35

Plantarflexes foot | Flexes knee

Question 36

Soleus - Origin

Answer 36

Soleal Line and medial border of tibia | Posterior aspect of fibular head and adjacent surfaces of shaft and neck

Question 37

Soleus - Insertion

Answer 37

Via calcaneal tendon to posterior surface of calcaneal

Question 38

Soleus - Innervation

Answer 38

Tibial Nerve (L4-S3)

Question 39

Soleus - Action

Answer 39

Plantarflexes the foot