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Anatomy II > Exam 2: Lower Limb lecture iv > Flashcards

Exam 2: Lower Limb lecture iv Flashcards

1
Q

compartments of the thigh (3)

A
  1. anterior (flexion, femoral nerve innervation)
  2. posterior (extension, sciatic nerve innervation)
  3. medial (adductor, obturator nerve innervation)
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2
Q

the compartments of the thigh are separated by _ that pass btwn muscle groups from the _ to the _

A

intermuscular septa, from the inner surface of the fascia lata to the linea aspera of the femur

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3
Q

adduction

A

adduction is a movement towards the midline. adduction of the hip squeezes the legs together

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4
Q

abduction

A

abduction is a movement away from the midline – just as abducting someone is to take them away. for example, abduction of the shoulder raises the arms out to the sides of the body

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5
Q

flexion

A

flexion refers to a movement that decreases the angle between two body parts; when the knee flexes, the ankle moves closer to the buttock, and the angle between the femur and tibia gets smaller

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6
Q

extension

A

extension refers to a movement that increases the angle between two body parts; extension of the knee straightens the lower limb

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7
Q

anterior thigh muscles: (5)

A
  1. pectineus (transitional muscle)
  2. iliopsoas -psoas major
  3. iliopsoas -iliacus
  4. sartorius
  5. quadriceps femoris
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8
Q

pectineus origin

A

superior pubic ramus

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9
Q

pectineus insertion

A

to femur, just below lesser trochanter

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10
Q

pectineus innervation

A

femoral nerve

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11
Q

pectineus action (3)

A

adduct, flex, and assist w/ medial rotation of thigh

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12
Q

iliopsoas -psoas major origin

A

lumbar vertebrae

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13
Q

iliopsoas -psoas major insertion

A

to lesser trochanter

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14
Q

iliopsoas -psoas major innervation

A

lumbar spinal nerves

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15
Q

iliopsoas -psoas major action

A

flex thigh and stabilize hip joint

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16
Q

iliopsoas -iliacus origin

A

iliac crest, iliac fossa, and sacrum

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17
Q

iliopsoas -iliacus insertion

A

to psoas major tendon and lesser trochanter

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18
Q

iliopsoas -iliacus innervation

A

femoral nerve

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19
Q

iliopsoas -iliacus action

A

flex thigh and stabilize hip joint

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20
Q

sartorius origin

A

anterior superior iliac spine (ASIS)

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21
Q

sartorius insertion

A

to superior part of medial tibial surface

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22
Q

sartorius innervation

A

femoral nerve

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23
Q

sartorius action

A

flex and laterally rotate thigh (at hip); flex leg (at knee)

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24
Q

what are the 2 joint muscles

A

sartorius and gracilis

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25
Q

quadriceps femoris has _ different heads with different origins (attachments)

A

4

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26
Q

quadriceps femoris runs to the _ both via a common tendon called _ and also independently, and then, via _ ligament on to the _ (insertion)

A

runs to the patella
common tendon aka quadriceps tendon
patellar ligament
insertion is tibial tuberosity

27
Q

quadriceps femoris innervation

A

femoral nerve

28
Q

quadriceps femoris action

A

extends leg (rectus femoris also stabilizes hip and helps flex thigh); it is the great extensor of the leg

29
Q

quadriceps femoris is made up of (4)

A
  1. rectus femoris
  2. vastus lateralis
  3. vastus medialis
  4. vastus intermedius
30
Q

rectus femoris origin

A

anterior inferior iliac spine (AIIS) and ilium superior to acetabulum

31
Q

vastus lateralis origin

A

greater trochanter and lateral lip of linea aspera

32
Q

vastus medialis origin

A

intertrochanteric line and medial lip of linea aspera

33
Q

vastus intermedius origin

A

anterior and lateral femoral shaft; it is deep to rectus femoris

34
Q

medial thigh muscles (5)

A
  1. adductor longus
  2. adductor brevis
  3. adductor magnus
  4. gracilis
  5. obturator externus
35
Q

adductor longus origin

A

body of pubis

36
Q

adductor longus insertion

A

to middle part of linea aspera

37
Q

adductor longus innervation

A

obturator nerve

38
Q

adductor longus action

A

adducts thigh

39
Q

adductor brevis origin

A

body and inferior ramus of pubis

40
Q

adductor brevis insertion

A

to proximal part of linea aspera

41
Q

adductor brevis is posterior to (covered by)

A

pectineus and adductor longus

42
Q

the 2 divisions of the obturator nerve run _ and _ to adductor brevis

A

anterior and posterior

43
Q

adductor brevis innervation

A

obturator nerve

44
Q

adductor brevis action

A

adducts thigh

45
Q

adductor magnus: adductor part origin

A

inferior ramus of pubis and ramus of ischium

46
Q

adductor magnus: adductor part insertion

A

to linea aspera and medial supracondylar line

47
Q

adductor magnus: hamstring part origin

A

ischial tuberosity

48
Q

adductor magnus: hamstring part insertion

A

to adductor tubercle of femur

49
Q

adductor magnus: its middle is posterior to

A

adductor longus

50
Q

adductor magnus innervation for adductor part

A

obturator nerve

51
Q

adductor magnus innervation for hamstring part

A

tibial part of sciatic nerve

52
Q

adductor magnus action of adductor part

A

adducts and flexes thigh

53
Q

adductor magnus action of hamstring part

A

adducts and extends thigh

54
Q

gracilis crosses both _ and _ joints

A

hip and knee joints

55
Q

gracilis origin

A

runs from pubic body and inferior ramus

56
Q

gracilis insertion

A

to superior part of medial tibia

57
Q

gracilis: at superior part of medial tibia, it shares a common tendon of insertion, the _, with sartorius and semitendinosus

A

pes anserinus

58
Q

gracilis innervation

A

obturator nerve

59
Q

gracilis action

A

adducts thigh; flexes and medially rotates leg

60
Q

obturator externus origin

A

deep; from obturator membrane and surrounding bone

61
Q

obturator externus insertion

A

to near greater trochanter

62
Q

obturator externus innervation

A

obturator nerve

63
Q

obturator externus action

A

laterally rotates thigh

Anatomy II (28 decks)

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