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Lower Extremity > Low Extremity Muscles > Flashcards

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
Q

Posterior Thigh general actions:

A

Extend the thigh, Flex and Rotate Leg

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26
Q

Hamstring Muscles:

A

Semitendonosus
Semimembranosus
Bicep femoris
hamstrings portion of AD Mag

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27
Q

All Hamstring originiate from:

EXCEPT:

A

Ischial Tube

Short Head of Bicep Femoris

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28
Q

All Hamstrings innervated by:

EXCEPT:

A

Tibial Portion of Sciatic

Short head of Bicep Femoris

29
Q

2 Joint Muscles

A

Semitendonosus
Semimembranous
Long Head of Biceps Femoris

30
Q

most medial hamstring

A

semitendinosus

31
Q

actions of Semiten and Semimem

A

Extends Hip
Flexes Knee
Internally Rotates Leg

32
Q

Semimembranosus insertions:

A

posteriomedial condyle of Tibia and

Oblique Popliteal Ligament

33
Q

Oblique Pop Lig inserts into:

A

lateral femoral condyle

34
Q

Oblique Pop Lig reinforces

A

posteriomedial and posteriolateral knee

35
Q

Semimembranosus secondarily attaches to

A

medial meniscus

36
Q

Short head of Bicep Femoris inserts into:

A

distal linea aspera and lateral supracondylar ridge of femur

37
Q

the two tendons of bicep femurs attach to:

A

lateral side of fibular head

38
Q

action of Bicep Femoris

A

Extends thigh at hip
Flexes Knee
Laterally rotates leg when knee is flexed

39
Q

insertion of bicep femurs may be split by

A

Fibular Collateral Ligament at Knee

40
Q

Superficial Muscles of Posterior Leg

A

Triceps Surae

Plantaris

41
Q

Triceps Surae is

A

medial and lateral gastrocnemus heads

soleus

42
Q

Deep Muscles of Posterior Leg

A

Popliteus
Tibialis Posterior
Flexor Hallucis Longus
Flexor Digitorium Longus

43
Q

Primary Plantar Flexor is

44
Q

Plantaris originates from

A

lateral supracondylar ridge of femur and oblique pop lig

45
Q

actions of Plantaris

A

plantar flexion of ankle and flexion of knee

46
Q

Popliteus from and to

A

proximal tibia and lateral femoral condyle

47
Q

Popliteus secondary attachement

A

lateral meniscus via joint capsule

48
Q

Popliteus orientation is designed for

A

Horizontal Plane Rotation

49
Q

Popliteus can assist in

A

lateral rotation of the femur on a fixed tibia during knee bend weight bearing
medial rotation of tibia of fixed femur

50
Q

much of the lateral rotation of femur for knee flexion during weight bearing is driven by:

51
Q

Tibialis Posterior insertion

A

navicular tubercle

medial cuneiform

52
Q

actions of TP

A

plantar flexes ankle
inverts the foot
supports medial long. arch of foot

53
Q

origin & insertion of Flexor Hallucis Longus

A

inferior 2/3 fibula to to distal phalanx of big toe

54
Q

action of FHL

A

plantar flexes ankle and flexes big toe

55
Q

origin & insertion of Flexor Digitorium Longus

A

medial posterior tibia to distal phalanx of lateral 4 toes

56
Q

Anterior Compartment muscles

A

Tibialis Anterior
Extensor Hallucis Longus
Extensor Digitorium Longus
Fibularis Tertius

57
Q

Lateral Compartment muscles

A

Fibularis Longus

Fibularis Brevis

58
Q

Primary Dorsiflexor

A

Tibialis anterior

59
Q

Tibialis anterior secondary action

A

Inverts the foot

60
Q

Lateral Compartment’s main action

A

Evert the foot

61
Q

Fibularis long insertion

A

plantar surface of medial cuneiform and base of 1st metatarsal

62
Q

Fibularis brevis insertion

A

tuberosity on base of 5th metatarsal

63
Q

Layer 1 of foot

A

Flexor Digitorium Brevis
ABductor Hallucis
ABductor Digiti Minimi

64
Q

Layer 2 of foot

A

Lumbercals and Quadrate Plantae

65
Q

Layer 3 of foot

A

ADductor Hallucis
Flexor Hallucis
Flexor Digiti minimi brevis

66
Q

Layer 4 of foot

A

Interossei

67
Q

___ plantar interossei

action

A

3

Adduction

68
Q

_____ dorsal interossei

action

A

4

Abduction

69
Q

intrinsic muscles dorsum of foot

A

Extensor Digitiorum brevis

extensor hallucis brevis

Lower Extremity (7 decks)

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