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Low Extremity Muscles Flashcards

1
Q

anterior compartment muscles do what?

A

Flex the hip and extend the knee

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2
Q

what are the anterior compartment muscles?

A

Illiopsoas
Quadriceps
Pectineus ( also to medial compartment)
Sartorius

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3
Q

Quadriceps muscles:

A 
Vastus Medialis
lateralis
intermedius
rectus femoris
articularis genu
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4
Q

muscles that insert into quad tendon into patella

A

vastus medialis
lateralis
intermedius
rectus femoris

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5
Q

Pectinus innervation

A

femoral and obturator

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6
Q

Pectinus action

A

flexes and adducts thigh

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7
Q

Psoas Major innervation

A

ventral rami L2-L4 prior to becoming Femoral N.

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8
Q

blood supply to the anterior compartment

A

Profunda Femoral a.

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9
Q

actions of Sartorius

A

Flexes Hip
Externally rotates Hip
Flexes Knee
Internally rotates Leg

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10
Q

Primary Hip Extensor

A

Gluteus Maximus

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11
Q

actions of Glut Max

A

hip extensor
lateral rotator of hip
stabilizes the hip and knee joint

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12
Q

insert into Greater Trochanter

A

Glut min

Glut Med

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13
Q

Primary Hip Adductors during locomotion

A

Glut Min

Glut Med

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14
Q

Actions of TFL

A

ABducts
Flexes
Internally rotates thigh
Stabilize the knee in extension through attachment of IT band

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15
Q

Deep Hip Muscles

5 short External Rotators

A 
Piriformis
Superior gemellus
Obturator INternus
Inferior gemellus
Quadratus Femoris
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16
Q

all but Quadratus Femoris insert onto:

A

greater trochanter

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17
Q

Quad Fem. inserts into:

A

quadrate tubercle on the intertrochanteric crest of femur

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18
Q

All 5 Deep muscles do what?

A

externally rotate hip when Hip is extended

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19
Q

6 Medial thigh muscles

A 
Pectineus
Adductor long
Ad brevis
Ad Mag
Gracilis
Obturator externus
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20
Q

All innervated by:

Except:

A

Obturator N

Pectineus and Hamstring portion of Ad Mag

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21
Q

action of Pectineus

A

adducts and flexes the Thigh

assist with medial rotation

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22
Q

action of Ad Long and Ad brev

A

Adducts the thigh

assist is medial rotation and weak flexion

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23
Q

actions of Gracilis

A

adducts thigh
flexes leg
medially rotates leg when knee is flexed

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24
Q

actions of Ad Mag

A

adducts thigh

medially rotates thigh

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25
Posterior Thigh general actions:
Extend the thigh, Flex and Rotate Leg
26
Hamstring Muscles:
Semitendonosus Semimembranosus Bicep femoris hamstrings portion of AD Mag
27
All Hamstring originiate from: | EXCEPT:
Ischial Tube | Short Head of Bicep Femoris
28
All Hamstrings innervated by: | EXCEPT:
Tibial Portion of Sciatic | Short head of Bicep Femoris
29
2 Joint Muscles
Semitendonosus Semimembranous Long Head of Biceps Femoris
30
most medial hamstring
semitendinosus
31
actions of Semiten and Semimem
Extends Hip Flexes Knee Internally Rotates Leg
32
Semimembranosus insertions:
posteriomedial condyle of Tibia and | Oblique Popliteal Ligament
33
Oblique Pop Lig inserts into:
lateral femoral condyle
34
Oblique Pop Lig reinforces
posteriomedial and posteriolateral knee
35
Semimembranosus secondarily attaches to
medial meniscus
36
Short head of Bicep Femoris inserts into:
distal linea aspera and lateral supracondylar ridge of femur
37
the two tendons of bicep femurs attach to:
lateral side of fibular head
38
action of Bicep Femoris
Extends thigh at hip Flexes Knee Laterally rotates leg when knee is flexed
39
insertion of bicep femurs may be split by
Fibular Collateral Ligament at Knee
40
Superficial Muscles of Posterior Leg
Triceps Surae | Plantaris
41
Triceps Surae is
medial and lateral gastrocnemus heads | soleus
42
Deep Muscles of Posterior Leg
Popliteus Tibialis Posterior Flexor Hallucis Longus Flexor Digitorium Longus
43
Primary Plantar Flexor is
Soleus
44
Plantaris originates from
lateral supracondylar ridge of femur and oblique pop lig
45
actions of Plantaris
plantar flexion of ankle and flexion of knee
46
Popliteus from and to
proximal tibia and lateral femoral condyle
47
Popliteus secondary attachement
lateral meniscus via joint capsule
48
Popliteus orientation is designed for
Horizontal Plane Rotation
49
Popliteus can assist in
lateral rotation of the femur on a fixed tibia during knee bend weight bearing medial rotation of tibia of fixed femur
50
much of the lateral rotation of femur for knee flexion during weight bearing is driven by:
hip
51
Tibialis Posterior insertion
navicular tubercle | medial cuneiform
52
actions of TP
plantar flexes ankle inverts the foot supports medial long. arch of foot
53
origin & insertion of Flexor Hallucis Longus
inferior 2/3 fibula to to distal phalanx of big toe
54
action of FHL
plantar flexes ankle and flexes big toe
55
origin & insertion of Flexor Digitorium Longus
medial posterior tibia to distal phalanx of lateral 4 toes
56
Anterior Compartment muscles
Tibialis Anterior Extensor Hallucis Longus Extensor Digitorium Longus Fibularis Tertius
57
Lateral Compartment muscles
Fibularis Longus | Fibularis Brevis
58
Primary Dorsiflexor
Tibialis anterior
59
Tibialis anterior secondary action
Inverts the foot
60
Lateral Compartment's main action
Evert the foot
61
Fibularis long insertion
plantar surface of medial cuneiform and base of 1st metatarsal
62
Fibularis brevis insertion
tuberosity on base of 5th metatarsal
63
Layer 1 of foot
Flexor Digitorium Brevis ABductor Hallucis ABductor Digiti Minimi
64
Layer 2 of foot
Lumbercals and Quadrate Plantae
65
Layer 3 of foot
ADductor Hallucis Flexor Hallucis Flexor Digiti minimi brevis
66
Layer 4 of foot
Interossei
67
___ plantar interossei | action
3 | Adduction
68
_____ dorsal interossei | action
4 | Abduction
69
intrinsic muscles dorsum of foot
Extensor Digitiorum brevis | extensor hallucis brevis

Lower Extremity (7 decks)

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