Session 7 - Medial thigh muscles Flashcards Preview

Semester 2 - MSK > Session 7 - Medial thigh muscles > Flashcards

Flashcards in Session 7 - Medial thigh muscles Deck (23):
1

What are the five muscles in the medial compartments of the thigh?

gracilis, obturator externus, adductor brevis, adductor longus and adductor magnus

2

What do the muscles of the medial compartment of the thigh do?

Adduct the thigh at the hip

3

What innervates the medial compartment of the thigh?

Innervated by the obturator nerve

4

What supplies blood to the medial comparment of the thigh?

The obtuartor artery

5

What is A?

Obturator externus

6

What are the actions of the obturator externus?

Laterally rotates the thigh

7

What is the innervation of the obturator externus?

Obturator nerve (L2-L4)

8

What is B?

Adductor Brevis

9

What is the innervation of the adductor brevis?

Obturator nerve

10

What is the action of the adductor brevis?

Adduction of the thigh

11

What is C?`

Adductor longus?

12

What is the actions of the adductor longus?

Adduction and medial rotation of the thigh

13

What is the innervation of the adductor longus?

Obturator nerve

14

What are the nerve roots of the obturator nerve?

(L2-L4)

15

What is D?

Adductor Magnus

16

What is interesting about the size of the adductor magnus?

A portion of it can be found in the posterior compartment, as well as the medial

17

What parts is the adductor magnus split into?

Adductor component and hamstring portion

18

What is the action of the parts of the adductor magnus?

They both adduct the thigh. The adductor component also flexes the thigh, with the hamstring portion extending the thigh.

19

What is the innervation of the adductor magnus?

Adductor part is innervated by the obturator nerve (L2-L4) Hamstring part innervated by the tibial nerve (L4-S3)

20

What is A?

Gracillis

21

What is interesting about the gracillis muscle?

The only muscle of the medial compartment to cross at both the hip and knee joints

22

What is the action of the gracillis?

Adduction of the thigh at the hip and flexion of the leg at the knee

23

What is the innervation of the gracillis?

Obturator nerve (L2-L4)