Anterior/Medial Thigh

Question 1

Cutaneous Nerves (4)

Answer 1

Lateral femoral cutaneous (L2/L3)

Anterior (intermediate and medial) cutaneous branches of femoral nerve (l2, l3, l4,)

Cutaneous branch of obturator

Saphenous nerve (continues from femoral n.)

Question 2

Muscles of the anterior thigh (over view): 4

Answer 2

Ilioposoas

Sartorius

Quadriceps femoris

Tensor fascia lata (located in anterior thigh but innervated from gluteal region)

Question 3

Chief flexor of thigh

Answer 3

Iliopsoas m

iliacus: femoral nerve (L2-L3)

Psoas major (L1-L3) ventral rami

Psoas minor (L1-L2)

Question 4

“hip flexor”

Answer 4

iliopsoas m.

Question 5

the longest muscle in the anterior thigh

Answer 5

sartorius m.

most superficial anterior muscle

femoral nerve

flex/abduct/laterally rotates thigh

Question 6

Vastus lateralis/Vastus medialis

Answer 6

2 of 3 parts of quadratus femoris

femoral nerve

leg extension

Question 7

Rectus femoris

Answer 7

1 muscle of quadratus femoris

femoral nerve

extends leg, flexes thigh

Question 8

What muscles form the quadriceps tendon?

Answer 8

quadriceps femoris (vastus lateralis and medialis + the two rectus femoris)

Question 9

Describe the chief extensors of the leg

Answer 9

quadriceps femoris (vastus lateralis/medialis, and rectus femoris): form quadriceps tendon, and then continue as ligamentum patella

innervated by femoral nerve

Question 10

Medial thigh muscles (overview and function)

Answer 10

adduction

pectineus

adductor brevis

gracilis

adductor longus

adductor magnus

adductor hiatus

Question 11

Pectineus m.

Answer 11

attachments

pecten line pubis (origin) 
pectineal line (insertion: just inferior to lesser trochanter) 

femoral nerve

adduct & flex thigh

Question 12

Attaches to the pecten line of pubis and pectineal line

Answer 12

pectineus

Question 13

adducts and flexes thigh, and innervated by obturator nerve

Answer 13

adductor longus

Question 14

a long strip like muscle, innervated by what?

Answer 14

gracilis, obturator nerve

Question 15

lies deep to pectineus and adductor longus

Answer 15

adductor brevis

innervated by obturator n.

Question 16

largest adductor muscle

Answer 16

adductor magnus

Question 17

what are the two parts of the adductor magnus

Answer 17

the adductor portion and the hamstring portion

Question 18

Proximal attachmens of the two parts of the adductor magnus

Answer 18

1. Hamstring: ischial tuberosity

2. adductor part: ischiopubic ramus

Question 19

Ischiopubic ramus —-

Answer 19

proximal attachment for the adductor portion of adductor magnus

Question 20

ischial tuberosity —

Answer 20

proximal attachment for the hamstring portion of the adductor magnus

Question 21

Hamstring of the Adductor magnus: attachments and innervation

Answer 21

adductor tubercle of medial epicondyle
ischial tuberosity

tibial division of sciatic nerve

adducts and extends thigh

Question 22

Adductor of the adductor magnus: attachments and innervation

Answer 22

obturator

ischiopubic ramus, gluteal tuberosity, linea aspera, medial supracondylar line

Question 23

Chief Extensors vs Chief Flexors of the thigh

Answer 23

Chief exstensors = quadriceps femoris

Chief flexors = iliopsoas