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

Lecture 47+48: Leg Anatomy Flashcards

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
Q

artery of the anterior compartment of leg

A

anterior tibial artery

- a branch of the popliteal artery

26
Q

branches of the anterior tibial artery in the leg

A
  • tibial recurrent
  • anterior medial malleolar
  • anterior lateral malleolar
  • dorsalis pedis
27
Q

at the ankle joint the anterior tibial changes it name to______________ to supply the foot

A

dorsalis pedis

28
Q

microtearing of tibialis anterior m. or tendons

A

shin splints

29
Q

injury to the common peroneal nerve …

A

paralysis of all anterior and lateral compartment muscles

30
Q

cut on the superior lateral leg near the fibular head …

A

cut deep peroneal n and lead to paralysis of leg

31
Q

everter compartment of the leg

A

lateral compartment

- also the smallest compartment

32
Q

bounded by the fibula, anterior and posterior intermuscular septa and deep fascia

A

lateral compartment

33
Q

muscles of the anterior compartment of leg (4)

A

tibialis anterior
extensor hallicus longus
extensor digitorum longus
peroneus tertius

34
Q

muscles of the lateral compartment of the leg (2)

A

peroneus longus

peroneus brevis

35
Q

O-I peroneus longus

A

O: lateral fibula
I: base 1st metatarsal and medial cuneiform

36
Q

O-I peroneus brevis

A

O: lateral fibula
I: tuberosity of 5th metatarsal

37
Q

nerve of the lateral compartment of the leg

A

superficial peroneal n.

38
Q

artery of the lateral compartment of the leg

A

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
Q

flexor compartment of the leg/ muscles produce plantar flexion and inversion of the foot

A

posterior compartment

- this compartment is divided into a superficial and a deep compartment by the transverse intermuscular septum

40
Q

nerve of the posterior compartment of the leg

A

tibial n.

41
Q

artery of the posterior compartment of the leg

A

posterior tibial and peroneal a.

42
Q

muscles of the posterior compartment of the leg (7)

A 
gastrocnemius 
soleus
plantaris
popliteus
flexor hallucis longus
flexor digitorum longus
tibialis posterior
43
Q

O-I gastrocnemius

A

O: lateral and medial condyles of the femur
I: calcaneus

44
Q

Action of gastrocnemius

A

flex leg at the knee joint

plantar flex the foot

45
Q

O-I soleus

A

O: fibula and soleal line of tibia
I: calcaneus

46
Q

“anti-gravity muscle”

A

soleus because the fibers are continuously active during standing

47
Q

tirceps surae

A

gastrocnemius and soleus together

48
Q

O-I plantaris

A

O- lateral supracondylar line of femur

I- calcaneus

49
Q

True or False: tendon of plantaris does not attach w/ calcaneal tendon

A

True- it has a separate attachment

50
Q

“freshman nerve”

A

tendon of plantaris

51
Q

O-I popliteus

A

O: lateral condyle of femur
I: superior to soleal line of tibia

52
Q

unlocks the knee joint by laterally rotating femur 5 degrees

A

popliteus

53
Q

O-I flexor hallicus longus

A

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

54
Q

O-I flexor digitorum longus

A

O: tibia inferior to soleal line
I: bases distal phalanges toes 2-5

55
Q

O-I tibialis posterior

A

O- tibia, fibula, and IO membrane

I- navicular, cuneiforms, cuboid, bases of 2-4 met.

56
Q

does the tibialis posterior attach to calcaneus or talus?

A

No

57
Q

deepest muscle of the posterior compartment of leg

A

tibialis posterior

58
Q

nerve of the posterior compartment

A

tibial nerve (L4-S3)

59
Q

artery of the posterior compartment

A

posterior tibial a.

branch of the popliteal a.

60
Q

branches of the posterior tibial a. in the posterior compartment of the leg

A 
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
Q

joins posterior tibial and peroneal arteries

A

communicating a. (branch of posterior tibial a.)

62
Q

are there lymph nodes in the foot?

A

no- the closest lymph nodes are in the popliteal fossa

Anatomy 5 (6 decks)

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