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Anatomy 5 > Lecture 47+48: Leg Anatomy > Flashcards

Lecture 47+48: Leg Anatomy Flashcards

(62 cards)

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1
Q

which is the larger weightbearing bone of the leg?

A

tibia

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2
Q

what connects the tibia and fibula and acts as an additional joint

A

interosseous membrane

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3
Q

supplies skin on the medial side of the leg

A 
saphenous nerve (L3-4)
branch of the femoral
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4
Q

medial sural cutaneous nerve

A

branch of the tibial nerve

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5
Q

lateral sural cutaneous nerve

A

branch of the common peroneal nerve

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6
Q

sural communicating nerve

A

branch of the lateral sural cutaneous

joins with the medial sural cutaneous

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7
Q

sural nerve

A

formed by the junction of the medial sural and communicating sural cutaneous nerves

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8
Q

supplies skin of anterolateral leg and dorsum of foot

A

Superficial peroneal n.
- branch of common peroneal
courses through lateral compartment

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9
Q

where does the great saphenous vein drain

A

into the femoral vein

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10
Q

begins at the foot and ascends along the medial side of the leg, contains 10-12 valves

A

great saphenous

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11
Q

where does the small saphenous vein drain?

A

drains into the popliteal vein posterior to the knee joint

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12
Q

begins at the lateral side of the foot and ascends along the posterior medial leg

A

small saphenous

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13
Q

deep fascia of the leg

A

crural fascia

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14
Q

dorsiflexor/extensor compartment of the leg

A

anterior compartment of the leg

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15
Q

located anterior to IO membrane, between the anterior intermuscular septum and tibia

A

anterior compartment of the leg

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16
Q

dorsiflexors of the ankle and extensors of the toes

A

anterior compartment of the leg

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17
Q

O-I tibialis anterior

A

O: tibia and IO membrane
I: med. cuneiform and 1st metatarsal

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18
Q

strongest dorsiflexor

A

tibialis anterior

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19
Q

O-I extensor hallucis longus

A

O: fibula and IO membrane
I: distal phalanx 1st toe

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20
Q

deepest muscle in the anterior comp. of leg

A

extensor hallicus longus

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21
Q

O-I extensor digitorum longus

A

O: tibia, fibula and IO membrane
I: middle and distal phalanges toe 2-5

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22
Q

O-I peroneus tertius

A

O- fibula and IO membrane

I- 5th metatarsal base

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23
Q

“5th extensor tendon” lateral

A

peroneus tertius

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24
Q

nerve of the anterior compartment of leg

A

deep peroneal nerve

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25
artery of the anterior compartment of leg
anterior tibial artery | - a branch of the popliteal artery
26
branches of the anterior tibial artery in the leg
- tibial recurrent - anterior medial malleolar - anterior lateral malleolar - dorsalis pedis
27
at the ankle joint the anterior tibial changes it name to______________ to supply the foot
dorsalis pedis
28
microtearing of tibialis anterior m. or tendons
shin splints
29
injury to the common peroneal nerve ...
paralysis of all anterior and lateral compartment muscles
30
cut on the superior lateral leg near the fibular head ...
cut deep peroneal n and lead to paralysis of leg
31
everter compartment of the leg
lateral compartment | - also the smallest compartment
32
bounded by the fibula, anterior and posterior intermuscular septa and deep fascia
lateral compartment
33
muscles of the anterior compartment of leg (4)
tibialis anterior extensor hallicus longus extensor digitorum longus peroneus tertius
34
muscles of the lateral compartment of the leg (2)
peroneus longus | peroneus brevis
35
O-I peroneus longus
O: lateral fibula I: base 1st metatarsal and medial cuneiform
36
O-I peroneus brevis
O: lateral fibula I: tuberosity of 5th metatarsal
37
nerve of the lateral compartment of the leg
superficial peroneal n.
38
artery of the lateral compartment of the leg
does NOT have its own unique supply branches of the peroneal a. from the posterior compartment and branches of the anterior tibial artery from the anterior compartment
39
flexor compartment of the leg/ muscles produce plantar flexion and inversion of the foot
posterior compartment | - this compartment is divided into a superficial and a deep compartment by the transverse intermuscular septum
40
nerve of the posterior compartment of the leg
tibial n.
41
artery of the posterior compartment of the leg
posterior tibial and peroneal a.
42
muscles of the posterior compartment of the leg (7)
``` gastrocnemius soleus plantaris popliteus flexor hallucis longus flexor digitorum longus tibialis posterior ```
43
O-I gastrocnemius
O: lateral and medial condyles of the femur I: calcaneus
44
Action of gastrocnemius
flex leg at the knee joint | plantar flex the foot
45
O-I soleus
O: fibula and soleal line of tibia I: calcaneus
46
"anti-gravity muscle"
soleus because the fibers are continuously active during standing
47
tirceps surae
gastrocnemius and soleus together
48
O-I plantaris
O- lateral supracondylar line of femur | I- calcaneus
49
True or False: tendon of plantaris does not attach w/ calcaneal tendon
True- it has a separate attachment
50
"freshman nerve"
tendon of plantaris
51
O-I popliteus
O: lateral condyle of femur I: superior to soleal line of tibia
52
unlocks the knee joint by laterally rotating femur 5 degrees
popliteus
53
O-I flexor hallicus longus
O: fibula and IO membrane I: base 1st distal phalanx
54
O-I flexor digitorum longus
O: tibia inferior to soleal line I: bases distal phalanges toes 2-5
55
O-I tibialis posterior
O- tibia, fibula, and IO membrane | I- navicular, cuneiforms, cuboid, bases of 2-4 met.
56
does the tibialis posterior attach to calcaneus or talus?
No
57
deepest muscle of the posterior compartment of leg
tibialis posterior
58
nerve of the posterior compartment
tibial nerve (L4-S3)
59
artery of the posterior compartment
posterior tibial a. | branch of the popliteal a.
60
branches of the posterior tibial a. in the posterior compartment of the leg
``` circumflex fibular a. peroneal a. nuterient a. muscular a. posterior medial malleolar a. communicating a. medial calcaneal (posterior) a. medial plantar a. lateral plantar a. ```
61
joins posterior tibial and peroneal arteries
communicating a. (branch of posterior tibial a.)
62
are there lymph nodes in the foot?
no- the closest lymph nodes are in the popliteal fossa

Anatomy 5 (6 decks)

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