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Anatomy Exam 2 > Anterior Thigh > Flashcards

Anterior Thigh Flashcards

1
Q

what muscles are within the anterior thigh

A

pectineus

sartorius

ilopsoas (3)

quadriceps femoris (4)

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2
Q

what is the nerve rule of the anterior thigh

A

innervated by femoral nerve

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3
Q

what is the exception to the nerve rule

A

psoas major and minor

innervated by direct branches of the lumbar plexus

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4
Q

pectineus origin

A

pecten pubis

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5
Q

pectineus insertion

A

femur

pectineal line and the proximal linea aspera

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6
Q

pectineus innervation

A

femoral nerve and obturator nerve (L2,L3)

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7
Q

pectineus action

A

hip: ADD, ER, slight flexion and stabilizes the pelvis in the coronal and sagittal plane

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8
Q

what is special about the pectineus

A

transitional muscle from posterior to anterior compartments

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9
Q

what is special about the sartorius

A

longest muscle in the body

tailors muscle

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10
Q

sartorius origin and insertion

A

origin: anterior superior iliac spine

insertion: medial to the tibial tuberosity (pes anserine)

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11
Q

sartorius innervation

A

femoral nerve (L2,L3)

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12
Q

sartorius action

A

hip joint: flexion, ABD, ER

knee joint: flexion and IR

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13
Q

what are the three parts of the iliopsoas

A

psoas major

psoas minor

iliacus

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14
Q

psoas major origin

A

superficial: T12-L4 and associated intervertebral discs

deep: L1-L5 vertebrae (transverse processes)

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15
Q

psoas major insertion

A

lesser trochanter

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16
Q

psoas major innervation

A

direct branches from the lumbar plexus (L2,L4)

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17
Q

psoas major action

A

hip joint: flexion, ER

lumbar spine: unilateral contraction (w/ femur fixed), bends the trunk laterally to the same side, bilateral contraction raises the trunk from the supine position

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18
Q

psoas minor origin and insertion

A

O: T12-L1 vertebrae and intervertebral disks (lateral surfaces)

I: iliopectineal arch

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19
Q

psoas minor innervation

A

direct branches from the lumbar plexus (L2-L4)

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20
Q

psoas minor action

A

assists in upward rotation of pelvis

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21
Q

iliacus origin and insertion

A

O: iliac fossa

I: lesser trochanter

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22
Q

iliacus innervation

A

femoral nerve (L2,L4)

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23
Q

iliacus action

A

hip joint: flexion, ER

lumbar spine: unilateral contraction (w/ femur fixed), bends the trunk laterally to the same side, bilateral contraction raises the trunk from the supine position

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24
Q

what muscles are within quadriceps femoris

A

rectus femoris

vastus lateralis

vastus medialis

vastus intermedius

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25
Q

rectus femoris origin and insertion

A

O: anterior inferior iliac spine and acetabular roof of hip joint

I: tibial tuberosity via patella tendon

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26
Q

rectus femoris innervation

A

femoral nerve (L2,L4)

27
Q

rectus femoris action

A

knee joint extension

hip joint flexion

28
Q

vastus lateralis origin and insertion

A

O: linea aspera (lateral lip) and greater trochanter (lateral surface)

I: tibial tuberosity via the patellar tendon

29
Q

vastus lateralis innervation

A

femoral nerve (L2,L4)

30
Q

vastus lateralis action

A

knee joint extention

31
Q

vastus medialis origin and insertion

A

O: linea aspera (medial lip) and intertrochanteric line (distal part)

I: tibial tuberosity via the patellar tendon

32
Q

vastus medialis innervation

A

femoral nerve (L2,L4)

33
Q

vastus medialis action

A

knee joint extension

34
Q

vastus intermedius origin and insertion

A

O: femoral shaft (anterior side)

I: tibial tuberosity via the patella tendon

35
Q

vastus intermedius innervation

A

femoral nerve (L2,L4)

36
Q

vastus intermedius action

A

knee joint extension

37
Q

when does the external iliac artery become the femoral artery

A

immediately after it crosses over the inguinal ligament

38
Q

branches of the femoral artery

A

superior circumflex iliac

superficial/deep external pundendal

superficial epigastric

profunda femoris

medial femoral circumflex

lateral femoral circumflex

39
Q

superior circumflex iliac

A

supplies the iliac crest

40
Q

superficial/deep external pudendal

A

supplies the perineum

41
Q

superficial epigastric

A

supplies the umbilicus

42
Q

what is the largest branch of the femoral artery

A

profunda femoris

43
Q

branches of the profunda femoris artery (perforating)

A

the adductor magnus

hamstrings

vastus lateralis

44
Q

medial femoral circumflex

A

responsible for most of the blood supply to the neck and head of the femur

45
Q

branches of the medial femoral circumflex

A

ascending and transverse

46
Q

lateral femoral circumflex

A

mainly supplies muscles of the lateral side of the thigh

47
Q

branches of the lateral femoral circumflex

A

ascending

transverse

descending

48
Q

veins of the anterior thigh

A

femoral

great saphenous

49
Q

femoral vein

A

continuation of popliteal vein

50
Q

great saphenous vein

A

deep vein of the thigh

51
Q

nerves of the anterior thigh

A

femoral (L2,L4)

lateral femoral cutaneous

52
Q

femoral (L2,L4)

A

anterior femoral cutaneous

saphenous (only sensory to anteromedial aspect of knee)

53
Q

lateral femoral cutaneous

A

only sensory to lateral thigh from lumbar spine

54
Q

spaces of the anterior thigh

A

femoral triangle

adductor (subartorial canal)

55
Q

femoral triangle boundaries

A

superior: inguinal ligament

medial: adductor longus

lateral: sartorius

floor: iliopsoas and pectineus

roof: fascia latae

56
Q

femoral triangle contents

A

femoral nerve
femoral sheath (lateral compartment, intermediate compartment and medial compartment)

57
Q

lateral compartment of femoral sheath

A

femoral artery

58
Q

intermediate compartment of femoral sheath

A

femoral vein

59
Q

medial compartment of femoral sheath

A

femoral canal (lymph nodes and vessels)

60
Q

adductor (subartorial) canal boundaries

A

extends from apex of femoral triangle to the adductor hiatus

anterior and lateral: vastus medialis

posterior: adductors longus and adductors magnus

medial: sartorius (also forms roof)

61
Q

adductor (subartorial) canal contents

A

femoral artery and vein
saphenous nerve
nerve to vastus medialis

62
Q

pes anserine

A

attachment point for sartorius, gracilis, semitendinosus

one muscle from each compartment attaches here

Say Grace before Tea (order the muscles are in more lateral to more medial)

62
Q

pes anserine

A

attachment point for sartorius, gracilis, semitendinosus

one muscle from each compartment attaches here

Say Grace before Tea (order the muscles are in more lateral to more medial)

Anatomy Exam 2 (24 decks)

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