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CHA 101 > Lab XVI > Flashcards

Lab XVI Flashcards

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1
Q

acetabulum

A
  • union of the ilium, ischium, and pubis
  • acetabular socket- holds head of femur
  • acetabular labrum- a fibrocartilage lip that deepens the socket
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2
Q

pubofemoral ligament

A
  • restricts abduction

- pubis to femur

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3
Q

iliofemoral ligament

A
  • prevents hyperextension
  • “y” shaped
  • two heads
  • ilium to the greater and lesser trochanter
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4
Q

ischiofemoral ligament

A
  • prevents hyperextension

- ischium and femur

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5
Q

gluteal region summary

A

-act on the hip joint
muscles superficial: gluteus maximus, gluteus medius, gluteus minimus, tensor fascia lata
deep layer: priformis, gemellus superior, obturator internus, gemellus inferior, obturator externus, quadratus femoris
innervation superficial layer: superior gluteal except gluteus maximus (inferior gluteal)
blood to superficial: superior and inferior gluteal arteries

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6
Q

posterior thigh summary

A

-act on hip joint and knee joint
muscles: biceps femoris, semitendinosus, semimembranosus
innervation: tibial nerve (hamstrings) and common fibular nerve (short head of biceps femoris)
blood supply: deep femoral artery

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7
Q

anterior thigh summary

A

-act on hip and knee joint
muscles: sartorius, quadricepts femoris & rectus femoris, vastus lateralis, vastus medialis, vastus intermedius, iliopsoas (not strictly)
innervation: femoral nerve
blood supply: femoral artery

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8
Q

medial thigh summary

A

adductors of the thigh
muscles: pectineus, adductor brevis, adductor longus, adductor magnus (adductor portion and hamstring portion), gracilis
innervation: obturator nerve
blood supply: obturator artery & perforating branches of the deep femoral artery

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9
Q

gluteus maximus

A

-superficial layer of the gluteal region
O: iliac crest, sacrum, sacrotuberus ligament
I: iliotibial tract, gluteal tuberosity, femoral shaft
A: extension, lateral rotation
N: inferior gluteal

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10
Q

gluteus medius

A

-superficial layer of the gluteal region
O: ilium external surface
I: greater trochanter
A: abduction, medial rotation, prevents pelvic tilt with gait

superficial to the gluteus minimus

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11
Q

gluteus minimus

A

-superficial layer of the gluteal region
O:ilium external surface
I: greater trochanter
A: abduction, medial rotation, prevents pelvic tilt with gait
N: superior gluteal nerve

deep to gluteus medius

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12
Q

tensor fascia lata

A

-superficial layer of the gluteal region
-lateral side with the small muscle belly
O: iliac crest
I: ilitibial tract
A: stabilizes knee joint in extension
N: superior gluteal nerve

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13
Q

piriformis

A

deep layer of the gluteal region

o: sacrum, sacrotuberus ligament
i: greater trochanter
a: lateral rotation of the thigh, stabilize head in acetabulum

-most superior, sciatic nerve inferior

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14
Q

piriformis syndrome

A

piriformis muscle irritates sciatic n. causes sciatica

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15
Q

gemellus superior

A

deep layer of the gluteal region

o: ischial spine
i: greater trochanter
a: lateral rotation of the thigh, stabilize head in the acetabulum

-deep layer of glutes; inferior to piriformis and sciatic n

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16
Q

obturator internus

A

deep layer of the gluteal region

o: inner surface of obturator foramen
i: greater trochanter
a: lateral rotation of the thigh, stabilize head in the acetabulum

-inferior to gemellus superior

17
Q

gemellus inferior

A

deep layer of the gluteal region

o: ischial tuberosity
i: greater trochanter
a: lateral rotation of the thigh, stabilize head in the acetabulum
- inferior to obturator internus

18
Q

obturator externus

A

deep layer of the gluteal region

o: outer margins of obturator foramen
i: greater trochanter
a: lateral rotation of the thigh, stabilize head in the acetabulum

-very deep to piriformis, best seen on anterior surface

19
Q

quadratus femoris

A

deep layer of the gluteal region

o: ischial tuberosity
i: intertrochanteric crest of femur
a: lateral rotation of the thigh, stabilize head in the acetabulum

-big square, wide broad muscles, inferior to obturator externus/gemellus inferior

20
Q

biceps femoris long head

A 
posterior thigh 
O: ischial tuberosity 
I: fibular head 
A: extend thigh, flexes leg 
N: tibial n. 
B: deep femoral artery

-more medial bicep, hamstring m.

21
Q

biceps femoris short head

A 
posterior thigh 
O: linea aspera 
I: fibular head 
A: flexes leg 
N: common fibular n 
B: deep femoral artery

-lateral and deep to long head

22
Q

semitendinosus

A 
posterior thigh 
O: ischial tuberosity 
I: proximal medial shaft of tibia 
A: extend thigh, flexes leg 
N: tibial n. 
B: deep femoral artery

more superficial, medial to biceps femoris long head; hamstring m, kinda looks like a tendon

23
Q

semimembranous

A 
posterior thigh 
O: ischial tuberosity 
I: tibia medial condyle 
A: extend thigh, flexes leg 
N: tibial n. 
B: deep femoral artery

kinda looks like a membrane (wide), slightly deeper than semitendinosus; flat tendon; hamstring m.

24
Q

hamstring muscles

A

biceps femoris long head, semitendinosus, semimembranosus, hamstring portion of the adductor magnus

25
Q

sartorius

A

anterior thigh
O: ASIS
I: proximal medial shaft of tibia (past the knee)
A: flexes thigh, laterally rotates thigh, flexes leg (like all the actions of chair pose)
N: femoral nerve
B: femoral artery

means shoemaker, crosses thigh like seatbelt

26
Q

[quadriceps femoris]

rectus femoris

A 
anterior thigh 
O: AIIS
I: patellar ligament to tibial tuberosity 
A: flexes thigh, extends leg 
N: femoral nerve 
B: femoral artery

big muscle in center

27
Q

[quadriceps femoris]

vastus lateralis

A 
anterior thigh 
O: greater trochanter 
I: patellar ligament to tibial tuberosity 
A: extends leg 
N: femoral nerve 
B: femoral artery

lateral to rectus femoris

28
Q

[quadriceps femoris]

vastus medialis

A 
anterior thigh 
O: intertrochanteric line 
I: patellar ligament to tibial tuberosity 
A: extends leg 
N: femoral nerve 
B: femoral artery

teardrop shape, medial to rectus femoris

29
Q

[quadriceps femoris]

vastus intermedius

A 
anterior thigh 
O: anterior femoral shaft 
I: patellar ligament to tibial tuberosity 
A: extends leg 
N: femoral nerve 
B: femoral artery

deep to rectus femoris, middle center

30
Q

iliopsoas

A

technically anterior thigh partially
O: lumbar vert, iliac crest and fossa
I: lesser trochanter of femur
A: high flexor (powerfully)

31
Q

pectineus

A 
medial thigh 
O: superior pubic ramus 
I: pectineal line of femur (post) 
A: adduction of thigh, some flexion 
N: obturator n. 
B: obturator a and perforating branches of the deep femoral a

medial to sartorius, triangle

32
Q

adductor brevis

A 
medial thigh 
O: ischiopubic ramus 
I: linea aspera (top 1/3) 
A: adduction of thigh, some flexion 
N: obturator n. 
B: obturator a and perforating branches of the deep femoral a

deep to longus, “brevis in the crevice”

33
Q

adductor longus

A 
medial thigh 
O: crest of pubic symphysis 
I: linea aspera (middle 1/3) 
A: adduction of thigh, some flexion 
N: obturator n. 
B: obturator a and perforating branches of the deep femoral a

medial and inferior to pectineus

34
Q

adductor magnus adductor portion

A 
medial thigh 
O: ischiopubic ramus 
I: linea aspera (lower 1/3) 
A: adduction of thigh
N: obturator n. 
B: obturator a and perforating branches of the deep femoral a

-deep to vastus medialis and adductor longus

35
Q

adductor magnus hamstring portion

A 
medial thigh 
O: ischial tuberosity 
I: adductor tubercle of femur 
A: extends thigh
N: tibial nerve 
B: obturator a and perforating branches of the deep femoral a

HAMSTRING, medial aspect of adductor magnus

36
Q

gracilis

A

medial thigh
O: symphysis pubis
I: proximal medial shaft of tibia
A: adduction of thigh, slight leg flexion
N: obturator n.
B: obturator a and perforating branches of the deep femoral a

most medial, small like sartorius but does not cross leg (stays medial)

CHA 101 (14 decks)

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