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Sum 2014 - Anat Exam 1 > Exam 1 - Lower leg > Flashcards

Exam 1 - Lower leg Flashcards

(69 cards)

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1
Q

What are the muscles of the Anterior leg?

A

Tibialis anterior, Extensor digitorum longus, Extensor hallicis longus, Fibularis terius

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2
Q

What are the muscles of the Lateral leg?

A

Fibularis longus, Fibularis brevis

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3
Q

What are the muscles of the Superficial Posterior leg?

A

Gastrocnemius, Soleus, Plantaris

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4
Q

What are the muscles of the Deep Posterior leg?

A

Popliteus, Flexor hallicus longus, Flexor digitorum longus, Tibialis posterior

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5
Q

What is the origin of Tibialis anterior?

A

lateral tibial condyle and the upper lateral surface of the tibia

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6
Q

What is the insertion of Tibialis anterior?

A

medial surface of the medial cuneiform and the 1st metatarsal

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7
Q

What are the functions of Tibialis anterior?

A

dorsiflexes and inverts the foot

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8
Q

What innervates the Tibialis anterior?

A

deep fibular (peroneal) nerve

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9
Q

What supplies blood to Tibialis anterior?

A

anterior tibial a.

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10
Q

What is the origin of Extensor digitorum longus?

A

lateral condyle of the tibia, anterior surface of the fibula, lateral portion of the interosseous membrane

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11
Q

What is the insertion of Extensor digitorum longus?

A

dorsum of the lateral 4 toes via extensor expansions (central slip inserts on base of middle phalanx, lateral slips on base of distal phalanx)

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12
Q

What is the function of Extensor digitorum longus?

A

extends the metatarsophalangeal, proximal interphalangeal and distal interphalangeal joints of the lateral 4 toes

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13
Q

What innervates Extensor digitorum longus?

A

deep fibular (peroneal) nerve

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14
Q

What supplies blood to Extensor digitorum longus?

A

anterior tibial a.

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15
Q

What is the origin of Extensor hallicis longus?

A

middle half of the anterior surface of the fibula and the interosseous membrane

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16
Q

What is the insertion of Extensor hallicis longus?

A

base of the distal phalanx of the great toe

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17
Q

What are the functions of Extensor hallicis longus?

A

extends the metatarsophalangeal interphalangeal joints of the great toe

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18
Q

What innervates Extensor hallicis longus?

A

deep fibular (peroneal) nerve

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19
Q

What supplies blood to Extensor hallicis longus?

A

anterior tibial a.

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20
Q

What is the origin of Fibularis tertius?

A

distal part of the anterior surface of the fibula

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21
Q

What is the insertion of Fibularis tertius?

A

dorsum of the shaft of the 5th metatarsal bone

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22
Q

What are the functions of Fibularis tertius?

A

everts the foot

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23
Q

What innervates the Fibularis tertius?

A

deep fibular (peroneal) nerve

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24
Q

What supplies blood to Fibularis tertius?

A

anterior tibial a.

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25
What is the origin of Fibularis longus?
upper two/thirds of the lateral surface of the fibula
26
What is the insertion of Fibularis longus?
after crossing the plantar surface of the foot deep to the intrinsic muscles, it inserts on the medial cuneiform and the base of the 1st metatarsal bone
27
What are the functions of Fibularis longus?
extends (plantar flexes) and everts the foot
28
What innervates the Fibularis longus?
superficial fibular (peroneal) nerve
29
What supplies blood to Fibularis longus?
fibular (peroneal) a.
30
What is the origin of Fibularis brevis?
lower one third of the lateral surface of the fibula
31
What is the insertion of Fibularis brevis?
tuberosity of the base of the 5th metatarsal
32
What is the function of Fibularis brevis?
extends (plantar flexes) and everts the foot
33
What innervates Fibularis brevis?
superficial fibular (peroneal) nerve
34
What supplies blood to Fibularis brevis?
fibular (peroneal) a.
35
What is the origin of Gastrocnemius?
femur; medial head: above the medial femoral condyle; lateral head: above the lateral femoral condyle
36
What is the insertion of Gastrocnemius?
dorsum of the calcaneus via the calcaneal (Achilles') tendon
37
What are the functions of Gastrocnemius?
flexes leg; plantar flexes foot
38
What innervates Gastrocnemius?
tibial nerve
39
What supplies blood to Gastrocnemius?
sural aa. (from the popliteal a.), posterior tibial a.
40
What is the origin of Soleus?
posterior surface of head and upper shaft of the fibula, soleal line of the tibia
41
What is the insertion of Soleus?
dorsum of the calcaneus via the calcaneal (Achilles') tendon
42
What are the functions of Soleus?
plantar flexes the foot
43
What innervates Soleus?
tibial nerve
44
What supplies blood to Soleus?
posterior tibial a.
45
What is the origin of Plantaris?
above the lateral femoral condyle (above the lateral head of gastrocnemius)
46
What is the insertion of Plantaris?
dorsum of the calcaneus medial to the calcaneal tendon
47
What are the functions of Plantaris?
flexes the leg; plantar flexes the foot
48
What innervates Plantaris?
tibial nerve
49
What supplies blood to Plantaris?
popliteal a
50
What is the origin of Popliteus?
lateral condyle of the femur
51
What is the insertion of Popliteus?
posterior surface of the tibia above soleal line
52
What are the functions of Popliteus?
flexes and rotates the leg medially (with the foot planted, it rotates the thigh laterally)
53
What innervates Popliteus?
tibial nerve
54
What supplies blood to Popliteus?
popliteal a.
55
What is the origin of Flexor hallucis longus?
lower 2/3 of the posterior surface of the fibula
56
What is the insertion of Flexor hallucis longus?
base of the distal phalanx of the great toe
57
What are the functions of Flexor hallucis longus?
flexes the metatarsophalangeal and proximal interphalangeal joints of the great toe; plantar flexes the foot
58
What innervates the Flexor hallucis longus?
tibial nerve
59
What supplies blood to Flexor hallucis longus?
fibular (peroneal) a. and posterior tibial a.
60
What is the origin of Flexor digitorum longus?
middle half of the posterior surface of the tibia
61
What is the insertion of Flexor digitorum longus?
bases of the distal phalanges of digits 2-5
62
What are the functions of Flexor digitorum longus?
flexes the metatarsophalangeal, proximal interphalangeal and distal interphalangeal joints of digits 2-5; plantar flexes the foot
63
What innervates Flexor digitorum longus?
tibial nerve
64
What supplies blood to Flexor digitorum longus?
posterior tibial a.
65
What is the origin of Tibialis posterior?
interosseous membrane, posteromedial surface of the fibula, posterolateral surface of the tibia
66
What is the insertion of Tibialis posterior?
tuberosity of the navicular and medial cuneiform, metatarsals 2-4
67
What are the functions of Tibialis posterior?
plantar flexes the foot; inverts the foot
68
What innervates Tibialis posterior?
tibial nerve
69
What supplies blood to Tibialis posterior?
fibular (peroneal) a. and posterior tibial a.

Sum 2014 - Anat Exam 1 (14 decks)

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