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Anatomy > Extremities Part 3 > Flashcards

Extremities Part 3 Flashcards

1
Q

The bifurcations of the abdominal aorta themselves bifurcate into what two arteries?

A

•Internal iliac arteries
•External iliac arteries

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2
Q

What blood vessel is the main arterial supply of the lower extremity?

A

External iliac artery

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3
Q

What structure marks the superior border of the femoral artery?

A

Inguinal ligament

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4
Q

What are the borders of the femoral triangle?

A

•Inguinal ligament
•Sartorius
•Adductor longus

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5
Q

What makes up the floor of the femoral triangle?

A

Iliopsoas and pectineus

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6
Q

What artery supplies the hip joint and the posterior structures of the thigh?

A

Deep femoral artery

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7
Q

What is the inferior border of the femoral artery?

A

The hiatus of the adductor magnus

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8
Q

What major artery lies posterior to the knee?

A

Popliteal artery

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9
Q

The popliteal artery bifurcates into what two arteries?

A

Anterior and posterior tibial arteries

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10
Q

What artery supplies the anterior compartment of the leg?

A

Anterior tibial artery

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11
Q

What artery supplies the posterior compartment of the leg?

A

Posterior tibial artery

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12
Q

What artery supplies the lateral compartment of the leg?

A

Fibular artery

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13
Q

Of the three arteries supplying the compartments of the leg which can be palpated for a pulse?

A

Posterior tibial artery

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14
Q

What artery can be palpated on the dorsum of the foot just lateral to the first metatarsal?

A

Dorsalis pedis artery

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15
Q

What superficial vein originates on the medial side of the ankle and extends from there along the medial surface of the lower extremity to the femoral triangle where it drains into the femoral vein?

A

Great saphenous vein

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16
Q

What superficial vein extends from the lateral ankle to the popliteal region where it drains into the popliteal vein?

A

Small saphenous vein

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17
Q

What deep veins of the leg run parallel to the main arteries in this region?

A

•Anterior tibial veins
•Posterior tibial veins
•Fibular veins

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18
Q

The anterior tibial vein and the posterior tibial vein converge to form what vein?

A

Popliteal vein

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19
Q

What is the proximal border of the popliteal vein?

A

The hiatus of the adductor Magnus

20
Q

What vein extends from the hiatus of the adductor Magnus to the inguinal ligament?

A

Femoral vein

21
Q

What vein extends from the inguinal ligament to the merger of this vein with the internal iliac vein?

A

External iliac vein

22
Q

What vein is formed by the convergence of the external and internal iliac veins?

A

Common iliac vein

23
Q

The lumbar plexus arises from the anterior rami of what spinal nerves?

A

L1-L4

24
Q

What is the main nerve of the posterior division of the lumbar plexus?

A

Femoral nerve

25
Q

What is the motor innervation of the femoral nerve?

A

Anterior thigh muscles

26
Q

What is the cutaneous innervation of the femoral nerve?

A

•Anterior and inferomedial thigh
•Medial aspect of the leg

27
Q

What is the main nerve of the anterior division of the lumbar plexus?

A

Obturator nerve

28
Q

What is the motor innervation of the Obturator nerve?

A

Medial thigh muscles

29
Q

What is the cutaneous innervation of the obturator nerve?

A

Superomedial skin of the thigh

30
Q

What other regions of the body do small branches of the lumbar plexus innervate?

A

•Abdominal wall
•The scrotum and the labia
•Interior portions of the abdominal muscles

31
Q

The anterior rami of what spinal nerves form the sacral plexus?

A

L4-S4

32
Q

Nerves emerging from the sacral plexus innervate what portions of the body?

A

•Gluteal region
•Pelvis
•Perineum
•Posterior thigh
•Almost all of the leg and foot

33
Q

What are the two main divisions of the sacral plexus?

A

•Anterior
•Posterior

34
Q

Nerves of the sacral plexus arising from the anterior division tend to innervate what muscles?

A

Muscles that flex (or plantar flex) parts of the lower limb

35
Q

Nerves of the sacral plexus arising from the posterior division tend to innervate what muscles?

A

Muscles that extends (or dorsiflex) part of the lower limb

36
Q

What is the largest and longest nerve in the body?

A

Sciatic nerve

37
Q

What nerve is formed from the anterior divisions of the sciatic nerve?

A

Tibial nerve

38
Q

What division of what nerve innervates the hamstrings?

A

Tibial division of the sciatic nerve

39
Q

Within the leg what nerve innervates the plantar flexors of the foot and the flexors of the toes?

A

Tibial nerve

40
Q

What is the cutaneous innervation of the tibial nerve?

A

Plantar surface of the foot

41
Q

What nerve is formed from the posterior division of the sciatic nerve?

A

Common Fibular nerve

42
Q

What division of what nerve innervates the short head of the biceps femoris?

A

Common Fibular division of the sciatic nerve

43
Q

What are the two main divisions of the common Fibular nerve?

A

•Deep Fibular nerve
•Superficial Fibular nerve

44
Q

What is the motor innervation of the deep Fibular nerve?

A

•Anterior leg muscles
•Muscles of the dorsum of the foot

45
Q

What is the cutaneous innervation of the deep Fibular nerve?

A

Skin between the first and second toes on the dorsum of the foot

46
Q

What is the motor innervation of the superficial Fibular nerve?

A

Muscles of the lateral compartment

47
Q

What is the cutaneous innervation of the superficial Fibular nerve?

A

•Anteroinferior part of the leg
•Most of the dorsum of the foot

Anatomy (26 decks)

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