B6-028 Gluteal Region and Thigh Flashcards

1
Q

chief extensor of the thigh

A

gluteus maximus

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2
Q

what part of the gluteus maximus can help extend the leg at the knee?

A

iliotibial tract

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3
Q

inferior gluteal nerve innervates

A

gluteus maximus

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4
Q

[…] nerve arises in the gluteal region from the spinal chord and descends down into the posterior thigh

A

sciatic

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5
Q

gluteus medius and gluteus minimus are important for normal […]

A

gait

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6
Q

responsible for thigh abduction and medial rotation [2]

A

gluteus minimus
gluteus medius

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7
Q

superior gluteal nerve innervates [3]

A

gluteus medius and minimus
tensor fascia lata

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8
Q

-abducts, medially rotates, and flexes thigh at hip
-can aid gluteus maximus in slight extension of knee

A

tensor fascia lata

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9
Q

most superior lateral rotator of the hip

A

piriformis

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10
Q

superior gluteal nerve and artery emerge superior to […]

A

piriformis

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11
Q

the sciatic nerve emerges inferior to […]

A

piriformis

(so does inferior gluteal nerve)

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12
Q

what three muscles form the triceps coxae

A

superior gemellus
inferior gemellus
obturator internus

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13
Q

lateral rotators of the femur [6]

A

piriformis
superior gemellus
inferior gemellus
quadratus femoris
obturator internus
obturator externus

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14
Q

most inferior lateral rotator of the hip

A

quadratus femoris

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15
Q

vertically oriented group of gluteal muscles [5]

A

gluteus medius
gluteus minimus
tensor fascia latae
gluteus maximus
piriformis

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16
Q

horizontally oriented group of gluteal muscles [5]

A

quadratus femoris
obturator internus
obturator externus
gemelli pair

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17
Q

the bulk of the anterior muscles of the thigh act as […]

A

extensors

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18
Q

the leg extensors of the anterior thigh mostly insert onto the

A

tibial tuberosity

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19
Q

muscles of the anterior thigh [4]

A

iliopsoas
pectineous
sartorius
quadriceps femoris

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20
Q

chief flexor of the thigh

A

illiopsoas

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21
Q

comes off T12-L5 and inserts onto the lesser trochanter of the femur

A

illiopsoas

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22
Q

what two muscles make up illiopsoas?

A

illiacus
psoas major

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23
Q

illiacus is innervated by

A

femoral nerve

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24
Q

L1-L3 ventral rami innervates

A

psoas

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25
Q

longest muscle in body

A

sartorius

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26
Q

sartorius is innervated by

A

femoral nerve

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27
Q

quadriceps femoris is innervated by

A

femoral nerve

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28
Q

only muscle of the quad that acts on the hip and knee to extend the leg and flex the thigh

A

rectus femoris

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29
Q

the vasti of the quadriceps femoris works to […] the leg

A

extend

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30
Q

superficial medial thigh muscle [4]

A

pectineus
adductor longus
adductor brevis
gracillis

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31
Q

deep medial thigh muscles [2]

A

obturator externus
adductor magnus

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32
Q

pectineus is innervated by

A

femoral nerve

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33
Q

adductor longus is innervated by

A

obturator nerve

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34
Q

primary function of the medial thigh muscles is

A

adduction

**some do a bit of flexion

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35
Q

only adductor to cross the knee joint

A

gracilis

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36
Q

gracilis is innervated by

A

obturator nerve

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37
Q

lies deep to pectineus and adductor longus

A

adductor brevis

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38
Q

adductor brevis is innervated by

A

obturator

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39
Q

largest adductor muscle

A

adductor magnus

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40
Q

2 parts of adductor magnus

A

adductor portion
hamstring portion

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41
Q

the hamstring part of the adductor magnus arises from

A

ischial tuberosity

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42
Q

the adductor part of the adductor magnus arises from

A

ischiopubic ramus

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43
Q

the hamstring part of the adductor magnus inserts at the

A

adductor tubercle

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44
Q

the adductor part of the adductor magnus inserts distally at

A

linea aspera

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45
Q

in general, the medial compartment of the thigh contains […] and is innervated by […]

A

adductors
obturator nerve

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46
Q

in general, the anterior compartment of the thigh contains […] and is innervated by […]

A

extensors
femoral nerve

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47
Q

in general, the posterior compartment of the thigh contains […] and is innervated by […]

A

flexors
sciatic nerve

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48
Q

most of the hamstrings are innervated by

A

tibial division of sciatic

**except short head of biceps femoris (fibular division)

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49
Q

in the general, the hamstrings act to […] and the hip and […] at the knee

A

extend at hip
flex at knee

**short head of biceps only flexes at knee

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50
Q

-long cordlike tendon that runs down the posterior thigh
-extends thigh at hip, medially rotates leg

A

semitendinosus

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51
Q

semitendinosus is innervated by

A

tibial division of sciatic

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52
Q

what muscles/nerves make up the pes anserinus

A

gracilis -obturator
semitendinosus- tibial division of sciatic
sartorius- femoral nerve

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53
Q

the pes anserinus is located on the medial aspect of the

A

tibia

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54
Q

semimembranosus sends off the […], which reinforces the capsule of the knee

A

oblique popliteal ligament

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55
Q

hyperextension of the knee could damage […]

A

oblique popliteal ligament

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56
Q

the long head of biceps femoris is innervated by

A

tibial division of sciatic nerve

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57
Q

the short head of biceps femoris is innervated by

A

fibular division of sciatic nerve

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58
Q

which head of the biceps femoris flexes the knee and extends the thigh?

A

long head

**short only flexes

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59
Q

both heads of biceps femoris insert distally at […]

A

head of fibula

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60
Q

short head of the biceps femoris originates at […]

A

linea aspera of femur

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61
Q

long head of biceps femoris originates at […]

A

ischial tuberosity

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62
Q

the adductor part of adductor magnus inserts distally at […]

A

adductor tubercle on medial epicondyle of femur

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63
Q

adductor magnus originates from […]

A

ischial tuberosity

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64
Q

hamstring portion of adductor magnus is innervated by

A

tibial division of sciatic

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65
Q

hamstring that acts only at the hip to assist in extension

A

hamstring portion of adductor magnus

**does not cross knee= no flexion

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66
Q

adductor portion of adductor magnus is innervated by

A

obturator

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67
Q

posterior thigh muscles [5]

A

semimembranosus
semitendonosus
biceps femoris
popliteus

**not pictured: hamstring portion of adductor magnus

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68
Q

abductors of the hip [2]

A

gluteus medius
gluteus minimus

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69
Q

adductors of the hip [3]

A

adductor magnus
adductor longus
adductor brevis

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70
Q

extensors of hip [4]

A

gluteus maximus
semitendonosus
semimembranosus
long head of biceps femoris

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71
Q

flexors of hip [5]

A

illiopsoas
rectus femoris
tensor fascia latae
pectineous
sartorius

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72
Q

internal rotators of hip [3]

A

gluteus medius
gluteus minimus
tensor fascia latae

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73
Q

external rotators of hip [5]

A

illiopsoas
gluteus maximus
piriformis
obturator internus
obturator externus

74
Q

provides sensory to medial thigh

A

obturator

75
Q

provides sensory to anterior thigh, medial leg

A

femoral

76
Q

provides sensory to anterior and lateral thigh

A

lateral femoral cutaneous

77
Q

compression of the lateral femoral cutaneous causing tingling, numbness, burning pain in anterolateral thigh

A

meralgia paresthetica

78
Q

decreased medial thigh sensation and weakened adduction may indicate a lesion in

A

obturator

79
Q

common cause of injury to obturator nerve

A

pelvic surgery

80
Q

weakened leg extension and patellar reflex could indicate a lesion in

A

femoral nerve

81
Q

common causes of injury to femoral nerve

A

pelvic fracture
compression from retroperitoneal/psoas abscess

82
Q

the sciatic nerve splits into [2]

A

common peroneal (fibular)
tibial nerve

83
Q

common causes of injury to sciatic nerve

A

posterior hip dislocation
herniated disc
piriformis syndrome

84
Q

pelvis tilts because weight bearing leg cannot maintain alignment of pelvis through hip abduction

A

Trendelenburg sign

85
Q

positive trendelenburg sign indicates injury to

A

contralateral superior gluteal nerve

86
Q

common cause of injury to inferior gluteal nerve

A

posterior hip dislocation

87
Q

common cause of injury to superior gluteal nerve

A

iatrogenic injury caused by IM injection

88
Q

difficulty climbing stairs, rising from seated position, and loss of hip extension may indicate injury to

A

inferior gluteal nerve

89
Q

in trendelenburg gait, the lesion is contralateral to […], ipsilateral to […]

A

side of hip that drops
extremity on which the patient stands

90
Q

overuse injury of the lateral knee that occurs primarily in runners
pain develops secondary to friction against lateral femoral epicondyle

A

illiotibial band syndrome

91
Q

inflammation of prepatellar bursa caused by repeated trauma or pressure from excessive kneeling

A

prepatellar busitis

92
Q

what artery runs through the femoral triangle?

A

femoral artery

93
Q

what ligament forms the greater sciatic foramen?

A

sacrospinus

94
Q

what ligament forms the lesser sciatic foramen?

A

sacrotuberous

95
Q

provides cutaneous sensation to inferior 1/3 of posterior thigh

A

posterior cutaneous (S1-S3)

96
Q

L4-S3

A

sciatic

97
Q

superior gluteal nerve supplies motor innervation to [3]

A

gluteus maximus
gluteus minimus
tensor fasciae latae

98
Q

inferior gluteal nerve supplies motor innervation to [1]

A

gluteus maximus

99
Q

what nerve runs superior to piriformis

A

superior gluteal nerve

100
Q

what nerves lie inferior to piriformis [6]

A

sciatic
pudendal
posterior cutaneous
inferior gluteal
obturator internus
quadratus femoris

101
Q

the sciatic nerve divides into […] and […] about halfway down the thigh

A

tibial
fibular

102
Q

does the sciatic nerve supply gluteal structures?

A

no

103
Q

largest cutaneous nerve

A

posterior cutaneous

104
Q

muscles that leave the pelvis via greater sciatic foramen and reenters the pelvis via lesser sciatic foramen

A

superior gemellus/obturator internus

105
Q

anterior divisions of S2-S4

A

greater pudendal

106
Q

exits the greater sciatic foramen and reenters the pelvis via lesser sciatic foramen to supply perineal structures

A

pudendal nerve

107
Q

superior gluteal artery travels with

A

superior gluteal nerve

108
Q

inferior gluteal artery travels with

A

inferior gluteal nerve

109
Q

superior gluteal, inferior gluteal, and internal pudendal arteries arise from

A

internal illiac a

110
Q

largest internal iliac artery branch

A

superior gluteal a.

111
Q

provides a way to bypass femoral artery in thigh

A

cruciate anastomosis of thigh

112
Q

what arteries make up the cruciate anastomosis of the thigh [4]

A

medial circumflex femoral
lateral circumflex femoral
first perforating artery
inferior gluteal artery

113
Q

what vessel of the cruciate anastomosis is key to getting blood all the way down the leg?

A

descending branch of lateral circumflex (goes all the way to genacular anastomosis)

114
Q

what muscles insert on the greater trochanter of the femur? [3]

A

gluteus medius
gluteus minimus
piriformis

115
Q

origin of gluteus minimus and gluteus medius?

A

iliac blade

116
Q

what muscles keep the pelvis level and maintain a smooth gait?

A

gluteus medius and minimus

117
Q

contraction of […] and […] on stance side keeps the greater trochanter in proximity to the iliac blade

A

gluteus medius and minimus

118
Q

if there is gluteus medius/minimus dysfunction, the pelvis will tilt toward the […] side

A

swing (contralateral)

119
Q

[…] nerve supples gluteus medius and minimus

A

superior gluteal

**lesion here can cause pelvic tilt toward swing side

120
Q

gluteal gait/Duchenne’s limp and positive trendelenburg sign indicates an injury to what nerve?

A

superior gluteal nerve

121
Q

lean toward effected side during stance phase of gait

A

positive trendelenburg

**indicates superior gluteal nerve injury

122
Q

attaches into illiotibial band [2]

A

tensor facia lata
gluteus maximus

123
Q

abducts, medially rotates, and flexes thigh
slight extension of knee

A

tensor fascia lata

124
Q

runs from iliac tubercle to lateral tibial condyle

A

IT band

125
Q

what structure can compensate for quadriceps paralysis?

A

IT band

126
Q

pulls the patella laterally
acts as an antagonist to vastus medialis

A

IT band

127
Q

what structure should be stretched to treat chondromalacia patella?

A

IT band

128
Q

if the center of rotation of the femur is within the boundaries of the IT band, the band acts as an […] when gluteus maximus contracts

A

extensor

129
Q

if the center of rotation of the femur is anterior to the boundaries of the IT band, the band acts as an […] when gluteus maximus contracts

A

flexor

130
Q

lateral rotators of the hip [3]

A

triceps coxae
piriformis
quadratus femoris

131
Q

medial rotators of hip [3]

A

gluteus medius
gluteus minimus
tensor fasciae latae

132
Q

[…] rotation at hip of planted limb advances opposite side of pelvis and free limb

A

medial rotation

133
Q

[…] rotation at hip of advancing limb keeps foot parallel to line of advancement

A

lateral

134
Q

bursa that lies under the IT band and up against the greater trochanter

A

trochanteric bursa

135
Q

what nerve innervates the anterior compartment of the thigh?

A

femoral

136
Q

muscles in the anterior compartment of the thigh are generally leg […]

A

extensors

137
Q

what nerve innervates the medial compartment of the thigh?

A

obturator

138
Q

what nerve innervates the posterior compartment of the thigh?

A

sciatic

139
Q

muscles in the medial compartment of the thigh are generally […]

A

adductors of thigh

140
Q

muscles in the posterior compartment of the thigh are generally […]

A

flexors at knee

141
Q

meralgia parethetica compresses the […] nerve

A

lateral femoral cutaneous

142
Q

patients with meralgia paresthetica will have pain along the […]

A

lateral thigh

143
Q

where is the nerve compressed in meralgia paresthetica?

A

compression of lateral femoral cutaneous as it passes under inguinal ligament

144
Q

what types of occupations are more commonly associated with meralgia paresthetica?

A

police, construction workers, military

**tool belt compresses

145
Q

nerve roots to know:

femoral:
obturator:
sciatic:
tibial :
common fibular:

A

femoral: L2-L4
obturator: L2-L4
sciatic: L4-S3
tibial : L4-S3
common fibular: L4-S2

146
Q

what nerves lie inferior to piriformis [3]

A

sciatic
posterior cutaneous
inferior gluteal

147
Q

what artery supplies the posterior thigh?

A

deep femoral

148
Q

what artery supplies the medial thigh?

A

obturator

149
Q

absence of patellar reflex is […] sign

A

Westphal’s

150
Q

testing the patellar reflex tests the function what nerve/nerve roots?

A

femoral, L2-L4

151
Q

the calcaneal tendon reflex tests what nerve roots?

A

S1-S2

152
Q

contents of femoral triangle

A

femoral N
femoral A
femoral V
femoral canal (Empty space)
Lymph node

NAVEL

153
Q

does the femoral sheath contain the nerve?

A

no

154
Q

contents of femoral sheath

A

femoral a
femoral v
femoral canal w/ lymph

155
Q

weak area in anterior abdominal wall where a loop of intestine can protrude into femoral canal

A

femoral ring

156
Q

muscles innervated by femoral nerve [4]

A

iliacus
sartorius
quadriceps femoris
pectineus

157
Q

cutaneous branches of the femoral nerve [3]

A

anterior cutaneous
lateral cutaneous
saphenous

158
Q

terminal branch of the femoral nerve

A

saphenous

159
Q

supplies sensory to anterior and medial knee/leg and medial foot

A

saphenous nerve

160
Q

what nerves exit the medial side of the adductor canal?[2]

A

saphenous
saphenous branch of descending genicular

161
Q

what muscles attach at the pes anserinus?

A

gracilis
semitendinosus
sartorius

**allows gracilis to be used for ACL graft

162
Q

what nerve innervates gracilis?

A

obturator

163
Q

what nerve innervates semitendinosus?

A

tibial division of sciatic

164
Q

what nerve innervates sartorius?

A

femoral

165
Q

artery that perforates through the thigh muscles to supply the posterior compartment

A

deep femoral

166
Q

what vessel supplies the head of the femur?

A

deep femoral a. via the medial and lateral circumflex

167
Q

what vessels are at risk in hip fx? [3]

A

deep femoral
medial and lateral circumflex

168
Q

used for graft in CABG procedure

A

great saphenous vein

**can injure the saphenous nerve causing paresthesia

169
Q

what can you do to slow a bleed from the femoral artery?

A

press down on the head of femur

170
Q

cannulation of the […] is used for radiographic visualization of the left heart and coronary vessels

A

femoral a.

171
Q

what nerves lie inferior to piriformis [3]

A

sciatic
posterior cutaneous
inferior gluteal

172
Q

the adductor muscle group receives blood supply from the […] iliac artery

A

internal

**via obturator

173
Q

the […] iliac gives rise to the femoral a.

A

external

174
Q

failure of the valves in the perforating veins of the legs causes

A

varicose veins

175
Q

main extender of the hip used in running, jumping, climbing and standing from a sitting position

A

gluteus maximus

176
Q

a positive trendelenburg sign is caused by

A

loss of contralateral gluteus medius/minimus activity

177
Q

what muscle inserts on the lesser trochanter of the femur

A

illiopsoas

178
Q

primary muscle used to flex the thigh at the hip

A

illiopsoas

179
Q

advances the trailing limb by producing flexion at the hip

A

illiopsoas

180
Q

what muscle initiates the swing phase of gait?

A

illiopsoas

181
Q

what 3 muscles insert on the pes aserinus, just distal to the medial tibial plateau?

A

sartorius
gracilis
semitendinosus

182
Q

the IT band inserts on the […] aspect of the tibia

A

lateral