Week 5 - Muscles and the thigh and nerves

Question 1

Name the muscles of the inner thigh

Answer 1

Obturator externus, adductor longus, adductor brevis, adductor magnus, gracilis

Question 2

Major nerves that supply the medial thigh?

Answer 2

Obturator nerve supplies: Obt. Ext., gracilis, Add. longus, Add. brevis, Add. magnus

Question 3

Learn the proximal and distal attachments as well as nerve that innervates and action of medial thigh muscles.

Answer 3

Muscle resource

Question 4

Which movements engage adductor muscles?

Answer 4

Squeezing a ball between your legs, clamshells, doing standing unilateral circles with a leg, side lunge and bringing the stretched out leg towards midline.

Question 5

Obturator nerve arises from which vertebrae?

Answer 5

L2, 3 4 ventral divisions

Question 6

Obturator nerve course

Answer 6

Arises from ventral divisions of the ventral rami of spinal nerves L2-4. Descends through psoas major, emerging on its medial border. Over lesser brim of pelvis. Descends along lateral wall of pelvis on top of obturator internus. Passes through the anterior obturator foramen via canal and enters the medial thigh.

Question 7

Obturator nerve distribution:

Muscle branches, sensory branches, also supplies which structures?

Answer 7

Muscles branches supply: adductor muscle group

Sensory (cutaneous) branches: cutaneous branch of obturator nerve, skin of middle part of medial thigh

Also supplies: hip joint, knee joint

Question 8

Lamb before mutton

Answer 8

Adductor longus is most anterior, then brevis, then magnus (posterior)