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Flashcards in Week 6 Lecture Material Deck (86):
1

what are the boundaries of the gluteal region

superior: crest of ilium
median: sacrum and coccyx
inferior: sacrotuberous ligament and ischial tuberosity.
laterally: greater trochanter

2

the top of the iliac crest is at about which vertebral level

L3-L4.

3

what are some things that attach to the ASIS

the sartorius, internal oblique, transverse abdonimus and ilioinguinal ligament

4

what comes out of the greater sciatic foramen

the superior and inferior gluteal arteries

5

cutaneous innervation?

superior cluneals from dorsal rami L1-3
middle cluneals from dorsal rami S1-3
inferior cluneals from posterior femoral cutaneous nerve
braches subcostal (T12), iliohypogastric and lateral femoral cutaneous nerve.

6

T12-L1 are the ____
Cluneals are the ___

hips, butt

7

muscles of the butt region are primarily involved with

abduction and lateral rotation of the thigh.

8

what innervates the butt muscles

inferior and superior gluteal nerves

9

what are the inferior and superior gluteal nerves branches off of

the lumbosacral plexus

10

what are some rotators

quadratus femoris and obturator internus.

11

sacrotuberous ligament

from the PIIS, sacrum, coccyx to the ischial tuberosity

12

sacrospinous ligament

from sacrum and coccyx to ischial spine.

13

which ligament is more anterior? the sacrospinous of tuberous

sacrospinous

14

the sacrospinous ligament and the sacrotuberous ligament transform the what into foramina

the greater and lesser sciatic notches.

15

Gluteus maximus

O: ilium posterior to gluteal line, sacrum, sacrotuberous ligament and coccyx
I: gluteal tuberosity and ITB
N: inferior gluteal nerve
A: extends hip run/climb and sit to stand, and laterally rotates.

16

Piriformis

O: pelvic surface of sacrum
I: grater trochanter
N: nerve to piriformis
A: lat rotation and extension.

17

from superficial to deep, how do the butt muscles go

maximus, medius, minimus.

18

where does the inferior gluteal nerve go

through the greater sciatic notch under the piriformis.

19

Gluteus medius

O: ilium (between iliac crest and sup. gluteal line)
I: greater trochanter
N: superior gluteal nerve
A: abducts and medially rotates hip

20

Obturator internus

O: obturator membrane
I: greater trochanter
N: nerve to obturator internus
A: laterally rotates and extends thigh.

21

obturator internus is sandwiched underneath what

the gemellus muscles

22

Superior Gemellus

O: ischial spine
I: greater trochanter
N: nerve to obturator internus
A: lat rotate and extend thigh

23

Inferior Gemellus

O: ischial tuberosity
I: greater trochanter
N: nerve to quadratus femoris
A: laterally rotate and extend thigh

24

Quadratus femoris

O: ischial tuberosity
I: intertrochanteric crest
N: nerve to quadratus femoris
A: laterally rotate and extend thigh.

25

Gluteus minimus

O: ilium between superior and inferior gluteal lines
I: greater trochanter
N: superior gluteal nerve
A: abduct and medially rotate

26

Obturator Externus

O: obturator membrane
I: trochenteric fossa
N: obturator nerve
A: adduct and laterally rotate thigh

27

Tensor Fascia Lata

O: iliac crest
I: ITB
N: superior gluteal nerve
A: abducts and flexes thigh

28

How does the ITB and fascia lata interact

the FL in sandwiched between the layers of the ITB

29

what bone does the ITB attach

the tibia

30

Superior gluteal nerve and vessels pass through the ____ just ___ to the piriformis

greater sciatic foramen superior to the piriformis

31

what do the superior gluteal vessels provide to

the superficial gluteal Maximus. also pass between the glut med and min to reach the TFL

32

inferior gluteal nerve and vessels exit the ___ just __ to the piriformis. innervate what

grater sciatic foramen just inferiorly. innervate the deep surface of the gluteal Maximus

33

Where does the sciatic nerve pass though. inferior or superior to piriformis?

the greater sciatic foramen and inferior to piriformis

34

what muscles does the sciatic nerve run posterior to

the obturator interns, gemelli and quadrates femoris

35

posterior femoral cutaneous nerve. how does it run, where does it supply cutaneous info to and what does it give off

runs medial to sciatic nerve
supplies cutaneous of posterior thigh
gives off inferior cluneals which is the bottom of the butt.

36

in what percent of people does the sciatic nerve pass under the piriformis

87.3%

37

which of the two nerves in the sciatic nerve may pass either in or above the piriformis? by what percents?

the common peroneal (12.2 through, and 0.5% above).

38

what nerve runs in through the greater sciatic foramen and out of the lesser sciatic foramen

pudendal nerve

39

what muscles does the obturator internus nerve supply

the obturator internus and the superior gemelli.

40

the nerve to the quadratus femoris also supplies what

the inferior gemelli.

41

cluneals means....

BUTT

42

the superior gluteal artery and vein give rise to what? where are they?

the superficial branch of the superior gluteal branch and the deep gluteal branch. Superficial goes to gluteal max (superficial). the deep goes between the medius and minimus

43

the medial femoral circumflex anastomoses with the ___

inferior gluteal artery and vein

44

the circumflex arteries wrap around...

the head and neck of femur

45

what are the superficial gluteal muscles

the glut max, med and min.

46

deep gluteal muscles

piriformis, gemelli, obturator internus and externes.quadratus femoris.

47

TFL is superficial or deep?

superficial

48

what does the TFL do

Abducts

49

what nerves innervate the skin of the posterior thigh and popliteal fossa

the posterior femoral cutaneous (S1-3) ventral primary rami.

50

Biceps femoris Long Head and Short head

O: ischial tuberosity (long) linea aspera (short)
I: head of fibula and tibia
N: tibial portion sciatic (long) and common peroneal of sciatic for short head
A: extend thigh and flex knee.

51

the bicep femoris is supplied by what nerve

the sciatic. Long head = tibial short head = common peroneal

52

the semitendinosis is more like a tendon ___ and the semimembranosis if more like a tendon ___

distally
proximally.

53

which head of the biceps femoris is more superficial

the long head

54

Semitendinosis

O: ischial tuberosity
I: medical surface of tibia (inf. to condyle)
N: tibial portion sciatic
A: extend thigh, flex leg and medially rotate knee

55

Semimembranosis

O: ischial tuberosity
I: medial condyle of the tibia
N: Tibial portion sciatic
A: extend thigh, flex knee, medially rotate knee.

56

When looking at a cross sectional area of the leg, the sciatic nerve has two branches. The bigger one is the __ portion

tibial portion. the other one is the common peroneal.

57

the femur is rounded anteriorly and pointed posteriorly. why?

linea aspera

58

the profound femoris is kinda smashed between the

adductor longus, brevis and the vastus medialis.

59

popliteal fossa boundaries

superior lateral: biceps femoris
superior medial: semitendinosis and membranosis
inferior lateral: lateral head gastroc
inferior medial: medial head gastroc

60

the medial head of the gastroc goes __- than the lateral

higher

61

the common peroneal nerve is on the medial of lateral side of the tibia portion of the sciatic

lateral

62

whats the roof of the popliteal fossa

fascia lata, branches of the posterior femoral cutaneous nerve and the lesser saphenous.

63

what is the floor of the popliteal fossa

politeal surface of femur. capsule of the knee joint, and oblique popliteal ligament

64

what is housed in the popliteal fossa

-the tibial nerve (dead center),
-common peroneal nerve (lateral side),
-political vessels and
-origins of the sural nerve (cutaneous nerve to the posterior leg and lateral aspect of the dorsal side of foot)

65

popliteal artery

continuation of the femoral artery after is passes the adductor hiatus in the adductor Magnus.

66

what does the popliteal artery divide into

the anterior tibial artery and the posterior tibial artery

67

what does the anterior tibial artery supply

the anterior compartment of leg (DF and toe extensors)

68

what does the posterior tibial artery supply

posterior compartment of the leg, gives rise to the peroneal artery (post and lateral parts of leg)

69

the posterior tibial artery divides into the

tibial (medial) and peroneal (lateral) arteries

70

profunda femoris is on what muscle

the adductor magnus

71

genicular refers to the...

knee

72

under the adductor hiatus, the adductor magnus is called the ___ portion

hamstring.

73

Genicular anastomoses are the branches of what artery

the popliteal

74

what do genicular arteries supply

the knee capsule, patella and surrounding bone

75

what nerves go through the popliteal fossa

the sciatic nerve

76

at the beginning of the popliteal fossa what happens to the sciatic nerve

branches into the tibial and common peroneal (lateral) nerves

77

what muscles do the tibial nerve supply

the semimembranosis, semitendinosis and biceps femoris long head

78

what muscle does the common peroneal nerve supply

short head biceps femoris

79

what is the most superficial component of the popliteal fossa

the tibial nerve

80

tibial nerve branches to form __ nerves that supply the knee

genicular.

81

the tibial nerve gives off the ___ nerve to help form the ___ nerve

medial sural cutaneous nerve to form the sural nerve.

82

the peroneal (___) nerve leaves the popliteal fossa superficially to the ___ head of the ___

fibular. lateral head of the gastroc.

83

as the peroneal nerve passes over the head of the fibula, what does it branch into

the superficial peroneal nerves and the deep peroneal nerved

84

what do the superficial peroneal nerves supply

the lateral compartment of the leg (EVERTERS)

85

what does the inferior peroneal nerves supply

the anterior compartment (DF and toe extension)

86

what nerves provide genicular branches to the knee

common peroneal nerve