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ANATOMY > Lecture 4: Organization of Pelvic Limb > Flashcards

Lecture 4: Organization of Pelvic Limb Flashcards

1
Q

developmentally, dorsal components of pelvic limb are _____ in vivo and ventral components are ______

A

dorsal - cranial
ventral - caudal

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2
Q

the femur is connected to the acetabulum via…

A

ligament of the femoral head (which is a continuation of the transverse acetabular ligament)

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3
Q

main function of the superficial gluteal muscle (lateral muscles of pelvis)

A

primarily extend and abduct the hip

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4
Q

what is the primary innervation of the superficial gluteal muscle (lateral muscles of pelvis)

A

Cranial gluteal nerve

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5
Q

what is the origin and insertion for most superficial gluteal muscles

A

origin: ilium
insertion: greater trochanter

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6
Q

what are the superficial gluteal muscles (lateral muscles of pelvis)

Many people support terrible fads

A
  • gluteus medius
  • gluteus profundus
  • tensor fasciae latae
  • gluteus superficialis
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7
Q

what is the insertion point of the tensor fascia latae

A

fascia lata (and tibia)

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8
Q

what is the function of the tensor fasciae latae

A

flex hip, extend stiffle

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9
Q

what is the innervation of the gluteus superficialis

A

caudal gluteal nerve

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10
Q

what is the insertion of the gluteus superficialis

A

third trochanter

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11
Q

what muscle group is the primary ABductors of the hip

A

superficial gluteal muscles

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12
Q

what muscle group is the primary (lateral) rotators of the hip

A

deep gluteal muscles

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13
Q

what are the deep gluteal muscles

A
  • gemelli
  • obturator internus
  • quadratus femoris
  • obturator externus

only obvious queens get assasinated

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14
Q

what is the innervation of the deep gluteal muscles

A

sciatic n.

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15
Q

what is the origin of the deep gluteal muscles

A

ischium

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16
Q

what is the innervation of the obturator externus (a deep gluteal muscle)

A

obturator nerve, laterally rotates thigh

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17
Q

what is the articularis coxae

A

protects the hip joint capsule

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18
Q

what muscle group is the primary extensors of the hip

A

caudal thigh muscles

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19
Q

what are the caudal thigh muscles

A
  • biceps femoris
  • semimembranosus
  • semitendinosus
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20
Q

what are the caudal thigh muscles innervated by

A

sciatic nerve

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21
Q

where do the caudal thigh muscles originate

A

partly originate from the ischial tuberosity

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22
Q

what is the cranial head of biceps femoris innervated by

A

caudal gluteal nerve

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23
Q

what is a muscle found only in felines that helps control and move the tail

A

caudofemoralis

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24
Q

what is a muscle found only in carnivores that helps abduct the leg, it is called the tenuissimus in cats

A

caudal crural abductor

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25
Q

what muscle group is the primary adductors of the hip

A

medial thigh muscles

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26
Q

what are the medial thigh muscles

A
  • sartorius
  • pectineus
  • adductor
  • gracillis
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27
Q

where do the medial thigh muscles originate

A

from the pelvis

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28
Q

what are the medial thigh muscles primarily innervated by

(pectinues, adductor, gracilis)

A

obturator nerve

in yellow

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29
Q

what is the origin of the sartorius

A

ilium

30
Q

what is the innervation of the sartorius ( a medial thigh muscle)

shown in green

A

femoral nerve

31
Q

what movements do the medial thigh muscle help with

A

adduct and extend the hip

32
Q

what muscle group is the primary flexors of the hip

A

sublumbar muscles

33
Q

what is the combined insertion tendon of the pelvic head (iliacus) and vertebral muscles(psoas major)

the two muscles that together form the hip flexor

A

iliopsoas

34
Q

where does the iliopsoas insert

A

on the lesser trochanter of the femur

35
Q

what is the innervation of iliopsoas

A

direct branches from the lumbosacral plexus and femoral nerve

36
Q

name for the extensor muscles of the stiffle

A

quadriceps femoris

37
Q

what is the origin of the cranial gluteal nerve

A

directly branches off the lumbosacral trunk

38
Q

what muscles does the cranial gluteal nerve innervate

shown in red

A
  • tensor fasciae latae
  • gluteus medius
  • gluteus profundus
39
Q

what is the origin of the caudal gluteal nerve

A

directly branches off the lumbosacral trunk

40
Q

what muscles does the caudal gluteal nerve innervate

A
  • gluteal superficialis
  • vertebral heads of origin of hamstring muscles
41
Q

what muscles does the sciatic nerve innervate

A

deep gluteal muscles
caudal thigh muscles

42
Q

what is the origin of the sciatic nerve

A

continuation off of the lumbosacral trunk

43
Q

what is the origin of the obturator nerve

A

L4-L6 spinal nerves

44
Q

what is the origin of the femoral nerve

A

same as obturator, L4-L6 spinal nerves

45
Q

what muscles are innervated by the obturator nerve

A
  • medial thigh (except for sartorius)
  • obturator externus
46
Q

what muscles are innervated by the femoral nerve

A
  • psoas major
  • sartorius
  • quadriceps femoris
47
Q

what nerve is shown in yellow

A

obturator

48
Q

what nerve is pointed to by green arrow

A

femoral

49
Q

what nerve is shown in red

A

cranial gluteal

50
Q

what nerve is shown in blue

A

caudal gluteal

51
Q

what nerve is pointed to in yellow

A

sciatic

52
Q

what muscle is in purple

A

gracilis

53
Q

what muscle is green

A

Sartorius (cranial+caudal)

54
Q

what muscle is pink

A

Adductor

55
Q

what muscle is light blue

A

pectineus

56
Q

what muscle is shown in purple

A

biceps femoris

57
Q

what muscle is shown in green

A

semitendinosus

58
Q

what muscle is shown in pink

A

semimembranosus

59
Q

what muscle is shown in pink

A

obturator internus

60
Q

what muscle is shown in light blue

A

gemelli

61
Q

what muscle is shown in purple

A

obturator externus

62
Q

what muscle is shown in green

A

quadratus femoris

63
Q

what does arrow point to

A

articularis coxae
- protects hip joint capsule

64
Q

what is shown in purple

A

gluteus profundus

65
Q

what muscle is shown in pink

A

gluteus medius

66
Q

what muscle is shown in yellow

A

gluteus superficialis

67
Q

what muscle is shown in blue

A

tensor fasciae latae

68
Q

what joint is shown in yellow

A

Hip join (coxo-femoral)

69
Q

what joint is pink

A

stifle (femoro-tibial)

70
Q

what joint is green

A

Hock (talo-crural)

71
Q

what joints are in the brown circle

A

inter-phalangeal joints

72
Q

what joints are shown in brown (most distal circle)

A

interphalangeal joints

ANATOMY (58 decks)

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