Muscles of the foot Characteristics Flashcards

1
Q

Detail the charecteristics of the Abductor Hallucis (THERE IS NO ABDUCTOR HALLUCIS BREVIS)

oRIGIN = M C and P A

Insertion = P P of the H

innervation = M P N

action = A F the H at MTP

A

Origin: Medial Calcaneus and Plantar Aponuerosis
Insertion: Proximal Phalynx of the Hallux
Innervation: Medial Plantar Nerve
Action: Abduct and flex Hallux at the MTP joint

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2
Q

Detail charecteristics of the Flexor Digitorum Brevis

Clue both brevis are innervated by the same nerve

Origin = M C and PA

INsertion = Middle P of the L four

Action = F 2-5 MTP PIP

A

Origin: Medial Calcaneous and Plantar Aponeurosis
Insertion: Middle Phalanges of the lateral four digits (Toes 2 to 5)
Inervation: Medial Plantar Nerve
Action: Flexes toes 2-5 at the MTP Joint and PIP (Proximal Interphalangeal Joints)

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3
Q

Detail the characteristics of the Abductor Digiti Minimi

Origin = L C and P A

INSERTION = P P of 5th

innervation = L P N

Action = A and F 5th at MTP

A

Origin: Lateral Calcaneus and Plantar aponuerosis
Insertion: Proximal Phalanx of 5th digit ( middle of little toe)
Inervation: Lateral Plantar Nerve
Action: Abduct and flex the little toe at MTP Joint

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4
Q

Detail the characteristics of the Flexor Digitorum Longus Tendon

D FOR D CLUE FLEXOR MEANS IN THE SOLE OF THE FOOT DIGITORUM MEANS GOING TO THE TOES LONGUS means Longer so they have to reach the distal aspect of the toes

ORIGIN = T

Inervation = Tibial nerve

INSERTION = D P of the L four toes

Action = F at MTP PIP DIP

A

Origin: Tibia
Insertion: Distal Phalnax of the lateral four toes (ends of toes 2 to 5)
Inervation: Tibial nerve
Actiion: Flexes toes 2-5 at MTP, PIP AND DIP Joints

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5
Q

Detail the characteristics of the Flexor hallucis longus tendon

Origin = F

Ineertion = D P of H

Innervation = T N

Action = F of the H at MTP IP

A

Origin: Fibula
Insertion: Distal Phalanx of the big toe
Innervation: Tibial Nerve
Action: Flexion of the Hallux at MTP and IP Joints

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6
Q

Detail the characteristics of the Quadratus Plantae

Origin = P S of the C

iNSERTION = T of the F D L

iNNERVATION = L P N

Action = redirect F D L T

A

Origin: Plantar Surface of the Calcaneus
Insertion: Tendon of the flexor digitorum longus
Innervation: Lateral Plantar nerve
Action: Redirect the line of pull of the flexor digitorum longus tendon (helps flex digits 2-5)

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7
Q

What are the characteristics of the Lumbricals

origin = M of FDLT

INSERTION = BASE of P P

INNERVATION = 1ST M OTHER 3 L

ACTION F MTP and E IP

A

Origin: Medial of the Flexor Digitorum Longus (side of the FDL)
Insertion: Base of the proximal phalanx
Innervation: The 1st Lumbrical (nearest the big toe) by the medial nerve and the other 3 lumbricals by the lateral nerve
Action: Flex MTP Joints and Extend the IP joints

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8
Q

Detail the characteristics of the Flexor Hallucis Brevis

C bone and Lateral 1 of the 3 C Bone

Origin P S of C bone and L CU

Insertion M and L P P

CLUE: INSERTION HAS TO BE PROXIMAL BECAUSE THE HALLUX DOESNT HAVE A MIDDLE PHALANX (only has two phalanges prox and dist)

A

Origin: Plantar surface of the cuboid bone and the lateral Cunieform
Insertion: Medial and Lateral proximal phalanx of the big toe (muscle has two heads. It seperates into two parts and goes around Flexor hallcius longus tendon)
Innervation: Medial Plantar Nerve
Action: Flexes the Hallux

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9
Q

Detail the charecteristics of the Flexor Digiti quinti

Origin - B OF 5TH M

Insertion - P P of 5th toe

Innervation - L P N

Action - F L T

A

Origin: Base of the fifth Metatarsal
Insertion: Proximal Phalanx of the 5th toe
Innervation: Lateral Plantar nerve
Action: Flex the little toe

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10
Q

Detail the characteristics of the of the Adductor Hallucis (Oblique Head)

A

Origin: Base of the 2nd,3rd,4th metatarsals
Insertion: Lateral Base of the Hallux
Innervation: Lateral Plantar Nerve
Action: Adducts the Hallux

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11
Q

Detail the Characteristics of the Adductor Hallucis (Transverse Head)

Origin - P L of the L 4 MTP

A

Origin: Plantar Ligaments of the lateral 4 MTP joints
Insertion: Lateral Base of the Hallux
Innervation: Lateral Plantar Nerve
Action: Adduct the Hallux and assist in maintaining the transverse arch

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12
Q

Detail the characteristics of the Plantar Interossei

A

Origin: On the medial side of metatarsal 3 4 and 5
Insertion: Base of the medail side of the proximal phalanges 3rd 4th 5th and the extensor expansions of these digits
Innervation: Lateral Plantar Nerve
Action: Adduct to the midline of the foot (2nd Toe)

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13
Q

Detail the charecteristics of the Dorsal Interossei (4muscles)

O = Adjacent side of two metatarsal

Insertion = Muscle (1) M side of 2nd Digit, other 3 L side of the next digit

Action = opposit to the plantar

A

Origin: Adjacent sides of the two metatarsals
Insertion: Muscle (1) medial side of the 2nd digit the other 3 lateral side of the next digit
innervation: Lateral Plantar Nerve
Action: Abducts from the line of the 2nd toe

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14
Q

Name the muscles of the foot Layer 1

A

TIP, of the three muscles two of them are called ABDUCTOR

  • Abductor Hallucis Brevis
  • Abductor Digiti Quinti
  • Flexor Digitorum Brevis
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15
Q

Name The muscles of the foot Layer 2

A

TIP, Layer two has 2 Flexor Tendons and the Quadratus Plantae + Lumbricals

Layer 2

FDLT - Flexor Digitorum Longus Tendon

FHLT - Flexor Hallucis Longus Tendon

Quadratus Plantae

Lumbricals

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16
Q

Name the muscles of the foot Layer 3

TIP LAYER 3 HAS TWO FLEXORS AND one adductor (two heads)

A

FHB - Flexor Hallucis Brevis

FDQ - Flexor Digiti Quinti

AHOH - Adductor Hallucis Oblique Head

AHTH - Adductor Halluicis Transverse Head

17
Q

Name the Muscles of the foot Layer 4

A

Platar Interossei

Dorsalo Interossei

18
Q

What is the trick to learning which nerves innervate each plantar muscle

SONG - FDB met FHB and got done for ABH ML

A

Four Muscles are innervated by the Medial Plantar Nerve.

All the other muscles of the foot are innervated by the Lateral Plantar Nerve

4 Muscles:

Ab H = Abductor Hallucis

FDB = Flexor Digitorum Brevis

FHB = Flexor Hallucis Brevis

Medial Lumbricle

TIP - All of these muscles are located closest to the Hallux as are the Medial Plantar Nerves hence why they are innervated by the Medial Plantar Nerve