Dissection 8: Femoral triangle and anterior compartment of the leg

Question 1

What are the borders of the femoral triangle

Answer 1

Inguinal ligament superiorly
Sartorius laterally
Adductor longus medially

Question 2

What forms the floor of the femoral traingel

Answer 2

illiopsoas laterally

pectineus medially

Question 3

What is contained in the femoral triangle

Answer 3

the femoral nerve, artery, vein and canal (contains deep inguinal lymph nodes)

Question 4

Where does the inguinal ligament run between

Answer 4

the ASIS and the pubic tubercle

Question 5

What is the inguinal canal

Answer 5

the medial half of the inguinal ligament

Question 6

what is contained in the inguinal canal

Answer 6

the spermatic cord

the round ligament of the uterus

Question 7

Name the muscles of the anterior thigh

Answer 7

Illiopsoas
Sartorius
Quadriceps femoris = rectus femoris, vastus lateralis, vastus intermedius

Question 8

What are the attachments of sartorius

Answer 8

ASIS - medial surface of proximal tibia

Question 9

Which muscle of the quadricepts attaches proximaly to the ASIS

Answer 9

rectus femoris

Question 10

Where does the quadricepts insert distally

Answer 10

patella via quadriceps tendon

Question 11

What supplies the anterior compartment of the leg

Answer 11

femoral nerve

Question 12

What is the function of iliopsoas

Answer 12

felxion at the hip

Question 13

what is the function of sartorius

Answer 13

flexion at the hip and knee

Question 14

what is the function of quadriceps

Answer 14

extension of the knee

Question 15

What are the roots of the femoral nerve?

Answer 15

L2-L4

Question 16

What is the function of the muscles in the medial thigh

Answer 16

to adduct the thigh

Question 17

name the adductors

Answer 17

gracilis

adductor brevis, longus and magnus

Question 18

What are the proximal attachments of the adductors brevis, longus and magnus

Answer 18

pubis, ischiopubic ramus or the ischial tuberosity

Question 19

what is the distal attachment of the adductors

Answer 19

posterior surface of the shaft of the femur along the linea asperal or the adductor tubercle of the tibia

Question 20

what nerve innervate the medial compartment of the thish

Answer 20

obturator

Question 21

what are the roots of the obturator nerve

Answer 21

L2-L4

Question 22

which muscle is not supplied bu the obturator nerve in the thigh and what is it supplied by instead

Answer 22

adductor magnus (hamstring part) 
tibial nerve

Question 23

Where do lymph vessels following the great saphenous vein drain

Answer 23

superficial inguinal nodes - then to external illiac and (some to deep inguinal)

Question 24

Where does lymph following the small saphenous drain

Answer 24

popliteal lymph nodes - then to deep inguinal

Question 25

where are the deep inguinal nodes

Answer 25

deep to the fascia lata | medial to femoral vein

Question 26

where do the deep inguinal nodes drain

Answer 26

external illiac nodes - there fore all lymph in the lower limb ultimately drains to the external illiac nodes

Question 27

What supplies most of the blood to the head of the femur

Answer 27

the medial and lateral circumflex arteries (branches of the femoral profunda artery)

Question 28

what makes up the femoral sheath

Answer 28

transversalis and iliopsoas fasica from the abdmonimal wall - surround the most proximal part of the femoral artery and vein NOT nerve

Question 29

What gives the sensory innercation to the thigh

Answer 29

``` anterior cutanous (L2-4) lateral cutaneous (L2-3) cutaneous branch of obturator (L2-4) ```