The leg and foot- origins and insertions Flashcards

1
Q

Anterior compartment muscles

A

Tibialis anterior
Extensor hallucis longus
Extensor digitorum longus
Fibularis Tertius

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2
Q

Tibialis anterior

A

Origin: Lateral condyle and upper two-thirds of the tibia; interosseous membrane.

Insertion: Medial cuneiform and base of the first metatarsal

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3
Q

Extensor Hallucis longus

A

Origin: Middle portion of the fibula; interosseous membrane.

Insertion: Dorsal surface of the base of the distal phalanx of the big toe.

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4
Q

Extensory digitorum longus

A

Origin: Lateral condyle of the tibia; upper three-fourths of the fibula; interosseous membrane.

Insertion: Middle and distal phalanges of the four lateral toes (via extensor expansion).

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5
Q

Fibularis Tertius

A

Origin: Distal third of the fibula; interosseous membrane.

Insertion: Dorsum of the base of the fifth metatarsal.

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6
Q

Lateral compartment muscles

A

Fibularis longus
Fibularis brevis

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7
Q

Fibularis longus

A

Origin: Head and upper two-thirds of the fibula.

Insertion: Base of the first metatarsal and medial cuneiform (plantar side).

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8
Q

Fibularis brevis

A

Origin: Lower two-thirds of the fibula.

Insertion: Base of the fifth metatarsal (lateral side).

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9
Q

Posterior compartment muscles

A

Gastrocnemius
Soleus
Plantaris
Tibilias posterior
Flexor haclluis longus
Flexor digitorum longus

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10
Q

Gastrocnemius

A

Origin:
Medial head: Medial condyle of the femur.
**Lateral head: **Lateral condyle of the femur.

Insertion: Posterior surface of the calcaneus via the Achilles tendon

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11
Q

Soleus

A

Origin: Posterior surface of the head and upper quarter of the fibula; soleal line of the tibia.

Insertion: Posterior surface of the calcaneus via the Achilles tendon.

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12
Q

Plantaris

A

Origin: Lateral supracondylar line of the femur.

Insertion: Posterior surface of the calcaneus via the Achilles tendon.

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13
Q

Tibialis posterior

A

Origin: Posterior surface of the tibia and fibula; interosseous membrane.

Insertion: Navicular, cuneiforms, cuboid, and bases of metatarsals 2-4 (plantar side).

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14
Q

Flexor hallucis longus

A

Origin: Lower two-thirds of the fibula; interosseous membrane.

Insertion: Base of the distal phalanx of the big toe (plantar side).

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15
Q

Flexor digitorum longus

A

Origin: Posterior surface of the tibia.

Insertion: Bases of the distal phalanges of the four lateral toes (plantar side).

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16
Q

Dorsal foot muscles

A

Extensor digitorum brevis
Extensor hallucis brevis

17
Q

Extensor digitorum brevis

A

Origin: Dorsal surface of the calcaneus.

Insertion: Extensor expansion of toes 2-4.

18
Q

Extensor hallucis brevis

A

Origin: Dorsal surface of the calcaneus.

Insertion: Dorsal surface of the base of the proximal phalanx of the big toe.

19
Q

Plantar foot muscles

A

Abductor hallucis
Flexor digitorum brevis
Abductor digiti minimi
Quadratus Plantae
Lumbricals
Flexor Hallucis Brevis
Abductor Hallucis
Flexor digit minimi brevis
Plantar interossei
Dorsal interossei

20
Q

Dorsal interossei

A

Origin: Adjacent sides of the metatarsals.

Insertion:
First: Medial side of the proximal phalanx of the second toe.
Second to fourth: Lateral sides of the proximal phalanges of toes 2-4.

21
Q

Plantar interossei

A

Origin: Medial sides of the metatarsals 3-5.

Insertion: Medial sides of the bases of the proximal phalanges of toes 3-5.

22
Q

Flexor digiti minimi brevis

A

Origin: Base of the fifth metatarsal.

Insertion: Lateral side of the base of the proximal phalanx of the little toe.

23
Q

Adductor hallucis

A

Origin:
Oblique head: Bases of the second to fourth metatarsals.
Transverse head: Ligaments of the metatarsophalangeal joints.

Insertion: Lateral side of the base of the proximal phalanx of the big toe.

24
Q

Flexor hallucis brevis

A

Origin: Cuboid and lateral cuneiform bones.

Insertion: Both sides of the base of the proximal phalanx of the big toe.

25
Q

Lumbricals

A

Origin: Tendons of the flexor digitorum longus.

Insertion: Medial side of the extensor expansions of the corresponding toes.

26
Q

Quadratus Plantae

A

Origin: Medial and lateral sides of the calcaneus.

Insertion: Tendons of the flexor digitorum longus.

27
Q

Abductor digit minimi

A

Origin: Lateral tubercle of the calcaneus.
Insertion: Lateral side of the base of the proximal phalanx of the little toe

28
Q

Flexor digitorum brevis

A

Origin: Medial tubercle of the calcaneus.
Insertion: Middle phalanges of the four lateral toes.

29
Q

Abductor hallucis

A

Origin: Medial tubercle of the calcaneus.
Insertion: Medial side of the base of the proximal phalanx of the big toe.