Intrinsic muscles- third layer

Question 1

Flexor Hallucis Brevis

Answer 1

O- lateral head: plantar surfaces of the cuboid, behind the groove for the fibularis longs and adjacent surface of the lateral cuneiform
medial head: tendon tendon of the tibias posterior muscle as it passes into the sole of the foot
I- lateral and medial sides of base of proximal phalanx of the great toe
A- flexes metatarsophalangeal joint of the greattoe
I- medial plantar nerve from tibial nerve S1, S2

Question 2

Adductor Hallucis

Answer 2

O- transverse head- ligaments associated with metatarsophalangeal joints of lateral three toes
oblique head- bases of metatarsals 2 to 4 and from sheath covering fibulas longus
I- lateral sesamoid bone associated with the tendon of the flexor hallucis braves and lateral side of base of proximal phalanx of great toe
A- adducts great toe at metatarsophalangeal joint
I- lateral plantar nerve from tibial nerve S2,S3

Question 3

Flexor Digitorum Brevis

Answer 3

O- base of metatarsal 5 and adjacent sheath of the fibulas longus tendon
I- lateral side of the base of the proximal phalanx of the little toe
A- flexes the little toe at the metarsophalangeal joint
I- lateral plantar nerve from the tibial nerve S2,S3