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Kine 2031 - Human Anatomy > Muscular System Pt. 10 - Muscles of the Leg > Flashcards

Muscular System Pt. 10 - Muscles of the Leg Flashcards

1
Q

Origin of Popliteus

A

Lateral condlye of femur

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2
Q

Insertion of Popliteus

A

Proximal Tibia

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3
Q

Actions of Popliteus

A

Medial rotation of tibia

Unlock extended knee; popliteus unlocks knee joints before flexion of knee occurs

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4
Q

Origin of Gastrocnemius

Posterior; crosses knee and ankle joint

A

Medial and lateral condyles of femur

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5
Q

Insertion of Gastrocnemius

A

Calcaneus via calcaneal (achilles) tendon

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6
Q

Actions of Gastrocnemius

A

Plantar flexion & Knee flexion

Plantar flexion because calcaneal tendon moves up towards origin

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7
Q

Origin of Plantaris

Posterior

A

Above lateral femoral condyle of femur (deep to gastrocnemius)

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8
Q

Insertion of Plantaris

A

Calcaneus via calcaneal tendon

Same as gastrocnemius

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9
Q

Actions of Plantaris

A

Plantar flexion & Knee flexion

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10
Q

Origin of Soleus

Posterior; does not cross knee joint

A

Head of fibula and medial tibia

Deep to gastrocnemius

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11
Q

Actions of Soleus

A

Plantar flexion

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12
Q

What are the muscles of the deep posterior muscles of the leg

A
  1. Tibialis Posterior
  2. Flexor Digitorum Longus
  3. Flexor Hallucis Longus

All do plantar flexion of ankle; Tendons run medial for all three

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13
Q

Origin of Tibialis Posterior

A

Tibia, Fibula, and Interosseus Membrane

Cross on medial side of heel

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14
Q

Insertion of Tibialis Posterior

A

Broad attachment of plantar surface of foot

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15
Q

Actions of Tibialis Posterior

A

Inversion of foot
Ankle Plantar Flexion

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16
Q

Origin of Flexor Digitorum Longus

A

Posterior surface of tibia

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17
Q

Insertion of Flexor Digitorum Longus

A

Distal phalanges of digits 2-5

18
Q

Actions of FDL (Flexor Digitorum Longus)

A

Ankle Plantar Flexion
Toe Flexion (all joints)

19
Q

Origin of Flexor Hallucis Longus

A

Posterior inferior surface of fibula

20
Q

Insertion of Flexor Hallucis Longus

A

Distal phalanx of big toe (hallux)

21
Q

Actinos of Flexor Hallucis Longus

A

Ankle Plantar flexion
Flexion of big toe (all joints of hallux)

22
Q

What are the muscles in the anterior muscles of the leg

A
  1. Tibialis Anterior
  2. Extensor Digitorum Longus
  3. Extensor Hallucis Longus
23
Q

Origin of Tibialis Anterior

A
  • Lateral condyle of tibia
  • Tibia
  • Interosseus membrane
24
Q

Insertion of Tibialis Anterior

A
  • Metatarsal I
  • Medial (Second) Cuneiform
25
Q

Actions of Tibialis Anterior

A

Ankle Dorsiflexion
Foot Inversion

26
Q

Origin of Extensor Digitorum Longus

A
  • Lateral condyle of tibia
  • Fibula
  • Interosseus membrane
27
Q

Insertion of Extensor Digitorum Longus

A

Middle and distal phalanges of digits 2-5

28
Q

Actions of Extensor Digitorum Longus

A

Ankle Dorsiflexion
Extension of toes

29
Q

Origin of Extensor Hallucis Longus

A
  • Anterior surface of fibula
  • Interosseus membrane
30
Q

Insertion of Extensor Hallucis Longus

A

Distal phalanx of big toe

31
Q

Actions of Extensor Hallucis Longus

A

Ankle Dorsiflexion
Extension of big toe

Extension of big toe includes metatarsal phalangeal and interphalangeal joints (in btwn. phalanges and metatarsals)

32
Q

What are the names of the Lateral Muscles of the Leg?

A
  1. Peroneus (Fibularis) Longus
  2. Peroneus (Fibularis) Brevis
  3. Peroneus (Fibularis) Tertius

Tertius sometimes considered apart of anterior group

33
Q

Origin of Fibularis Longus

A

Head and body of fibula

Superficial to fibularis brevis

34
Q

Insertion of Fibularis Longus

A
  • Metatarsal I
  • Medial (second) cuneiform

Joint wraps underneath the heel and goes to the first metatarsal

35
Q

Actions of Fibularis Longus

A
  • Ankle eversion
  • Plantar flexion

Plantar flexion at the ankle

36
Q

Origins of Fibularis Brevis

37
Q

Insertion of Fibularis Brevis

A

Base of fifth metatarsal

38
Q

Actions of Fibularis Brevis

A
  • Ankle eversion
  • Plantar flexion
39
Q

Origin of Fibularis Tertius

More anterior than lateral

A
  • Distal surface of fibula
  • Interosseus membrane
40
Q

Insertion of Fibularis Tertius

A

Base of fifth metatarsal

Similar to Fibularis Brevis

41
Q

Actions of Fibularis Tertius

A
  • Ankle eversion
  • Dorsiflexion

Kine 2031 - Human Anatomy (43 decks)

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