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BMSC Regional Gross Anatomy 2 > Femoral triangle > Flashcards

Femoral triangle Flashcards

1
Q

what are the nerves of the lumbar plexus

A 
iliohypogastric
ilioinguinal
genitofemoral
lat. cut. nerve thigh
lumbosacral trunk
femoral 
obturator
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2
Q

what does the genitofemoral nerve supply in the lower limb

A

femoral branch will give cutaneous innervation to the lower limb

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3
Q

what does the lateral cutaneous nerve of the thigh supply in the lower limb

A

cutaneous innervation to the thigh

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4
Q

what does the femoral nerve supply in the lower limb

A

muscles of anterior compartment of the thigh and cutaneous branches

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5
Q

what does the obturator nerve supply in the lower limb

A

muscles in the medial compartment of the thigh and sensory branches

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6
Q

where does the obturator nerve pass in the pelvis

A

runs along lateral wall of pelvis

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7
Q

what fibres does the lumbosacral trunk take from the lumbar plexus

A

L4 and L5

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8
Q

the lumbosacral trunk carries fibres from L4 L5 and passes into pelvis to unit with branches from the sacral plexus to form

A

sciatic nerve

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9
Q

does the sciatic nerve supply the gluteal region

A

no it passes through here but does not supply

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10
Q

what does the sciatic nerve supply in the lower limb

A

muscles of posterior compartment of the thigh and also the leg

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11
Q

what structures pass through the greater sciatic foramen

A

sciatic and gluteal nerves and vessels

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12
Q

what nerve passes deep to the inguinal ligament through the subinguinal space

A

femoral nerve

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13
Q

the femoral nerve passes deep to the inguinal ligament through the subinguinal space accompanied by what

A

femoral artery and vein

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14
Q

what structures pass through the obturator canal

A

obturator nerve and vessels

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15
Q

what is the obturator canal

A

obturator foramen is covered in ligamentous layer but has a small opening; the obturator canal

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16
Q

the gluteal nerves arise from

A

sacral plexus

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17
Q

the gluteal nerves and vessels pass through where to leave the pelvis

A

greater sciatic foramen

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18
Q

the sciatic nerve passes through where to exit the pelvis

A

greater sciatic foramen

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19
Q

what are the roots of the femoral nerve

A

L2 L3 L4 posterior divisions

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20
Q

the femoral nerve passes in the _____ space to reach the _____ thigh to give _____ innervation

A

subinguinal space
anterior thigh
motor and sensory

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21
Q

what are the roots of the obturator nerve

A

L2 L3 L4

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22
Q

the obturator nerve passes through the ______ to reach the ____ thigh where it gives _____ innervation

A

obturator canal
medial thigh
motor innervation and a small area of cutaneous innervation

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23
Q

what are the roots of the sacral nerve

A

L4, L5 from lumbosacral trunk
S1,2,3 sacral nerves

L4-S3

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24
Q

what does the sciatic nerve supply

A

posterior thigh and branches that supply the leg and foot

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25
the sciatic nerve forms where
pelvic cavity
26
the sciatic nerve passes through where to leave the pelvis
greater sciatic foramen
27
the sciatic nerve supplies all of the muscles in the ____ compartment of the thigh
posterior
28
where does the great saphenous vein begin
dorsum of the foot just proximal to big toe
29
the great saphenous vein is deep/superficial
superficial
30
the great saphenous vein passes _____ to the medial malleolus
anterior
31
describe the path of the great saphenous vein
begins on the dorsum of the foot just proximal to the great toe. Passes anterior to the medial malleolus, then travels up the medial leg and passes posteriorly behind the knee joint, then up the antero-medial thigh and wraps around to empty into the femoral vein
32
where does the great saphenous vein drain
femoral vein
33
what other vessels drain into the great saphenous vein where it drains into the femoral vein and also directly into the femoral vein
superficial epigastric vein | superficial circumflex vein
34
what accessory vein is seen in many individuals
accessory saphenous vein that is more anterior on the thigh and forms quite a large vessel that empties into the great saphenous vein
35
what is the name of the superficial vein found only in the foot and lef
short saphenous vein
36
where does the short saphenous vein run
posterior aspect of the leg in the midline
37
the short saphenous vein passes ____ the lateral malleolus
behind
38
where does the short saphenous vein end
the knee joint
39
what does the short saphenous vein drain into and where
ends at the knee joint where it drains deep into the popliteal vein
40
what is the largest deep vein located posterior to the knee
popliteal vein
41
where do superficial structures of the lower limb drain lymph
via small lymphatic channels towards the superficial inguinal lymph nodes
42
what are the two groups of superficial inguinal nodes
horizontal and vertical
43
what do the horizontal superficial inguinal group drain?
medial; anterior abdominal wall and lower half of anal canal | lateral; posterior abdominal wall
44
what do the vertical superficial inguinal group grain
superficial structures of the lower limb
45
what supplies most of the cutaneous innervation of the anterior thigh
anterior cutaneous branches of the femoral nerve (L2-4)
46
what supplies cutaneous innervation to the upper lateral anterior thigh just below the hip
lateral cutaneous branch of T12 (subcostal nerve)
47
what supplies cutaneous innervation to the lateral anterior thigh
lateral cutaneous nerve of the thigh (L2, L3)
48
what supplies cutaneous innervation to the upper middle anterior thigh
femoral branch of genitofemoral nerve (L1, L2)
49
what supplies cutaneous innervation to the medial upper thigh
ilioinguinal (L1)
50
what supplies cutaneous innervation to the medial thigh just below ilioinguinal innervation
cutaneous branch of obturator L2 3 4
51
the deep fascia of the lower limb in the thigh is called what
fascia latae
52
the deep fascia of the leg is called what
crural fascia
53
what does the fascia latae form laterally
thickens laterally to form the iliotibial tract
54
where does the iliotibial tract run
iliac tubercle to the anterolateral tibial tubercle
55
what is the function of the iliotibial tract
helps support the femur on the tibia when standing
56
what forms the roof of the femoral triangle
fascia latae, cribriform fascia, subcutaneous tissue and skin
57
what is the weak area of the roof of the femoral triangle
saphenous hiatus
58
what is the saphenous hiatus
opening in the fascia latae where the great saphenous vein drains into the femoral vein
59
what fascia covers the saphenous hiatus
cribriform fascia - seive like
60
what is the function of the cribriform fascia
has many holes for passage of small lymphatic vessels as well as opening for great saphenous vein draining deep into femoral vein
61
what is the base of the femoral triangle
inguinal ligament
62
what is the lateral border of the femoral triangle
sartorius muscle
63
what is interesting about sartorius muscle
longest muscle in the body
64
what is the medial border of the femoral triangle
adductor longus
65
what 2 answers can you give for the medial border of the femoral triangle
either the adductor longus or the medial border of adductor longus
66
if you say medial border of adductor longus as the medial border of the femoral triangle what must you remember when talking about the floor
if say the medial border of adductor longus you have to include this muscle in the floor
67
what makes up the lateral floor of the femoral triangle
iliopsoas
68
what makes up the medial floor of the femoral triangle
pectineus (and adductor longus)
69
what are the contents of the femoral triangle from lateral to medial
``` NAVL femoral nerve femoral artery femoral vein lymphatics ```
70
what is the most lateral structure in the femoral triangle
femoral nerve
71
what is the most medial structure in the femoral triangle
lymphatics
72
what is the femoral sheath
fascia surrounding the vascular structure of the femoral triangle
73
what is included in the femoral sheath
femoral artery femoral vein lymphatics | i.e. NOT femoral nerve
74
the femoral nerve is closely associated with what muscle
iliopsoas
75
the femoral nerve will enter the anterior compartment of the thigh on the surface of what muscle
iliopsoas
76
what forms the femoral sheath superiorly
transversalis fascia and iliopsoas fasica
77
what forms the femoral sheath distally
adventitia of the femoral vessels
78
what is the femoral canal
potential space medially within the femoral sheath
79
what is found in the femoral canal
lymphatics and fat
80
what is the structure of the femoral sheath
partitions between structures
81
what is found most medially in the femoral sheath
femoral canal with fat and lymphatics

BMSC Regional Gross Anatomy 2 (36 decks)

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