deep posterior muscle compartment

Question 1

What are the muscles of the deep posterior compartment from medial to lateral?

Answer 1

flexor digitorum longus
tibialis posterior
flexor hallicus longus

Question 2

what is the arterial supply to the deep posterior compartment?

Answer 2

posterior tibial artery and fibular A.

Question 3

What is the innervation of the posterior deep compartment muscles?

Answer 3

tibial nerve

sources may vary

Question 4

What is the origin and insertion of flexor digitorum longus?

Answer 4

Origin: middle third of the posterior surface of the tibia

Insertion: bases of distal phalanges of digits 2-5

Question 5

what is the origin and insertion of the tibialis posterior?

Answer 5

Origin: interosseus membrane and adjacent borders of tibia and fibular

Insertion: tuberosity of the navicular; plantar surfaces of cuneiforms; bases of metatarsals
2-4

Question 6

What is the origin and insertion of the flexor hallicus longus?

Answer 6

Origin: distal 2/3 of posterior surface of fibula, adjacent interosseus membrane

Insertion: base of the distal phalanx of hallux

Question 7

What is the action of flexor digitorum longus?

Answer 7

plantar flexion of foot, at talocrural joint inversion and supination of foot, at subtler joint
flexes MTP and IP joints of digits 2-5

Question 8

What is the action of the tibialis posterior ?

Answer 8

plantar flexion of foot, at talocrural joint
inversion and supination of foot, at subtalar joint
supports longitudinal and transverse arches of foot

Question 9

What is the action of flexor hallicus longus?

Answer 9

plantar flexion of the foot, at talocrural joint
inversion and supination of the foot, at subtalar joint
flexion of the MTP and IP joints of hallux
supports medial longitudinal arch of foot

Question 10

What is the order of the muscle bellies?

Answer 10

Medial:		
Flexor digitorum L	
Tibialis posterior	
Flexor hallucis L	
Lateral:

Question 11

What is the order of the deep posterior muscle tendons in the tarsal tunnel?

Answer 11

Anterior:
Tibialis posterior	
Flexor digitorum L	
Flexor hallucis L	
Post:.

Question 12

What is the order of the deep posterior muscles insertions?

Answer 12

Medial:		
Tibialis posterior	
Flexor hallucis L	
Flexor digitorum L	
Lateral:

Question 13

How does the deep posterior muscles and the posterior tibial artery/vein and tibial nerve get into the foot?

Answer 13

passting behind the medial malleolus and through the tarsal tunnel, under the flexor retinaculum

Question 14

What is the order of the deep posterior muscles and posterior tibial artery/vein and tibial nerve in the tarsal tunnel?

Answer 14

Tom – Tibialis posterior, inserting on tuberosity of navicular and medial cuneiform

Dick – flexor Digitorum longus, inserting on four lateral toes

And – posterior tibial A
Very – posterior tibial V
Nervous – tibial N

Harry – flexor Hallucis longus, inserting on great toe