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Gross Anatomy > Gross Test 4 > Flashcards

Gross Test 4 Flashcards

0
Q

gluteus medius

A

O: exterior surface of ilium between anterior and posterior gluteal line
I: lateral surface of greater trochanter
Inn: superior gluteal nerve L4,L5,S1
Act: abduuct, medially rotate hip joint, keep pelvis level when opposite side is elevated

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1
Q

gluteus maximus

A

O: dorsal surface of sacrum and coccyx, ilium posterior to the posterior gluteal line, sacrotuberous lig
I: IT band and gluteal tuberosity of femur
Inn: inferior gluteal nerve L5,S1,S2
Act: extend hip between flexed and standing position, assist in lateral rotation, steadies thigh and assists in rising from sitting position

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2
Q

gluteus minimus

A

O: external surface of ilium between anterior and inferior gluteal lines
I: ant surface of greater trochanter
Inn: superior gluteal nerve L4,L5,S1
Act: abduct, medially rotate hip joint, keep pelvis level when opposite limb is elevated

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3
Q

tensor fasciae latae

A

O: ASIS, ant part of iliac crest
I: IT band (lat condyle of tibia)
Inn: superior gluteal nerve L4,L5,S1
Act: flex hip joint, act with glut.max. to stabilize extended knee joint

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4
Q

piriformis

A

O:sacrotuberous lig, ant surface of 2-4 sacral segments, sup margin of greater sciatic notch
I: sup border of greater trochanter
Inn: branches of ant rami S1,S2
Act: laterally rotate extended hip joint, abduct flexed hip joint, stabilize hip joint

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5
Q

obturator internus

A

O: pelvic surface of ilium and ischium, obturator membrane
I: medial surface of greater trochanter
Inn: nerve to obturator internus L5,S1
Act: laterally rotate extended hip joint, abduct flexed hip joint, stabilize hip joint

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6
Q

gemelli (superior and inferior)

A

O: sup- ischial spine, inf- ischial tuberosity
I: medial surface of greater trochanter
Inn: obturator internus L5,S1 & quad femoris L5,S1
Act laterally rotate extended hip joint, abduct flexed hip joint, stabilize hip joint

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7
Q

quadratus femoris

A

O: lateral border of ischial tuberosity
I: quadrate tubercle on intertrochanteric crest of femur and area inferior to it
Inn: nerve to quad femoris L5,S1
Act: laterally rotate hip joint, stabilize hip joint/pelvis

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8
Q

semitendinosis

A

O: ischial tuberosity
I: medial surface of sup part of tibia
Inn: tibial division of sciatic nerve L5,S1,S2
Act: extend hip joint, flex knee joint and rotate leg medially when knee is flexed, when hip and knee are flexed, can extend trunk

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9
Q

semimembranosus

A

O: ischial tuberosity
I: posterior part of medial condyle of tibia, reflected attachment forms oblique popliteal lig
Inn: tibial division of sciatic nerve L5,S1,S2
Act: flex knee joint and rotate leg medially, when knee/hip are flexed, can extend trunk

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10
Q

bicep femoris (long and short head)

A

O: long- ischial tuberosity, short- linea aspera and lateral supracondylar line of femur
I: lateral side of fibula, tendon is split @ this site by fibular collateral lig
Inn: long- tibial division of sciatic L5,S1,S2, short- common fibular of sciatic nerve L5,S1,S2
Act: flex knee joint and rotate laterally, extend hip joint

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11
Q

adductor longus

A

O: body of pubis inf to pubic crest
I: middle third of linea aspera of femur
Inn: obturator nerve L2-L4
Act: adduct hip joint

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12
Q

adductor brevis

A

O: body and inf ramus of pubis
I: pectineal line, proximal part of linea aspera of femur
Inn: obturator nerve L2-L4
Act: adducts hip (some flexion)

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13
Q

adductor magnus

A

O: add- inf ramus of pubis, ramus of ischium
I: add- gluteal tuberosity, linea aspera, medial supracondylar line, ham- adductor of tubercle of femur
Inn: add- obtrator nerve L2-L4, ham- tibial part of sciatic nerve L2-L4
Act: adduct hip joint, add part flexes hip joint and hamstring part extends it

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14
Q

gracilis

A

O:body and inf ramus of pubis
I: sup part of med surface of tibia
Inn: obturator nerve L2,L3
Act: adducts hip joint, flexes knee joint and helps rotate it medially

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15
Q

obturator externus

A

O: obturator foramen and membrane
I: trochanteric fossa of femur
Inn: obturator nerve L3,L4
Act: laterally rotate hip joint, pulls head of femur into acetabulum holding pelvis steady

16
Q

Quadricep muscles

A

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

17
Q

hamstring muscle group

A

semitendinosis, semimembranosus, long head of bicep femoris

18
Q

pectineus

A

O: sup ramus of pubis
I: pectineal line of femur, just inf to lesser trochanter
Inn: femoral nerve L2,L3
Act: adducts and flexes hip joint, assists with medial rotation of hip joint

19
Q

sartorius

A

O: ASIS, sup part of notch inf to it
I: sup part of medial surface of tibia
Inn: femoral nerve L2,L3
Act: flexes, abducts and laterally rotates hip joint

20
Q

psoas major

A

O: sides of T12-L5 vert and discs between, trans processes of all lumbar vert
I: lesser trochanter of femur
Inn: ant rami of lumbar nerves L1-L3
Act: flex hip, postural

21
Q

Iliacus

A

O: iliac crest, iliac fossa, ala of sacrum, ant sacroiliac lig
I: tendon of psoas major, lesser trochanter, femur distal to it
Inn: femoral nerve L2,L3
Act: flex hip joint

22
Q

rectus femoris

A

O: AIIS, ilium sup to acetabulum
I: base of patella, tibial tuberosity
Inn: femoral nerve L2-L4
Act: extend knee joint, stabilize hip joint and help ilipsoas flex hip joint

23
Q

vastus lateralis

A

O:greater trochanter and lat lip of linea aspera
I: base of patella, tibial tuberosity, tibia and patella via aponeurosis (lat and med patellar retinacula)
Inn: femoral nerve L2-L4
Act: extends knee joint

24
Q

vastus medialis

A

O: intertrochanteric line and medial lip of linea aspera
I: base of patella, tibial tuberosity, tibia and fibula via aponeurosis
Inn: femoral nerve L2-L4
Act: extends knee joint

25
Q

vastus intermedius

A

O: ant/lat surface of shaft and femur
I: base of patella, tibial tuberosity
Inn: femoral nerve L2-L4
Act: extends knee joint

26
Q

tibialis anterior

A

O:lat condyle, sup 2/3 of lat surface of tibia, interosseus membrane
I: med/inf surfaces of medial cuneiform, base of first metatarsal
Inn: deep fibular nerve L4,L5
Act: dorsiflex ankle, invert foot, support medial longitudinal arch of foot

27
Q

extensor hallucis longus (EHL)

A

O: middle part of ant surface of fibula and interossues membrane
I: dorsal aspect of base of distal phalanx
Inn: deep fibular nerve L5,S1
Act: extends great toe, dorsiflex ankle

28
Q

extensor digitorum longus (EDL)

A

O: lat condyle of tibia, sup 2/3 of ant surface of fibula, interosseus membrane
I: middle and distal phalanges of lat 4 digits
Inn: deep fibular nerve L5,S1
Act: extends lateral 4 digits, dorsiflex ankle

29
Q

fibularis tertius

A

O: interosseus membrane, inf third of ant surface of fibula
I: dorsum of base of 5th metatarsal
Inn: deep fibular nerve L5,S1
Act: dorsiflexes ankle, aids in eversion of foot

30
Q

fibularis longus (FL)

A

O: head and sup 2/3 of lat surface of fibula
I: base of 1st metatarsal and medial cuneiform
Inn: superficial fibular nerve L5,S1,S2
Act: evert foot, weakly plantar flex ankle, supports transverse arch of foot

31
Q

fibularis brevis (FB)

A

O: middle part of lat surface of fibula
I: dorsal surface of tuberosity of base of 5th metatarsal
Inn: superficial fibular nerve L5,S1,S2
Act: evert foot, weakly plantarflex ankle

32
Q

gastrocnemius

A

O: lat- lat aspect of condyle of femur, med- popliteal surface of femur, sup to medial condyle
I: post surface of calcaneus via calcaneal tendon
Inn: tibial nerve S1,S2
Act: plantarflex ankle when knee is extended, raises heel during walking, flexes knee joint

33
Q

soleus

A

O: post aspect of head of fibula, sup quarter of post surface of fibula, soleal line, medial border of tibia
I: post surface of calcaneus via calcaneal tendon
Inn: tibial nerve S1,S2
Act: plantarflexes ankle, steadies leg on foot

34
Q

plantaris

A

O: inf end of lat supracondylar line of femur, oblique popliteal lig
I: post surface of calcaneus via calcaneal tendon
Inn: tibial nerve S1,S2
Act: weakly assist gastrocnemius in plantarflexing ankle, fxn is prob mainly proprioceptive

35
Q

popliteus

A

O: lat surface of lat condyle of femur, lat meniscus
I: post surface of tibia sup to soleal line
Inn: tibial nerve L4,L5,S1
Act: weakly flexes knee and unlocks it by laterally rotating femur of fixed tibia, may also medially rotate tibia of unplanted limb

36
Q

flexor hallucis longus

A

O: inf 2/3 of post surface of fibula, inf part of interosseus membrane
I: base of distal phalanx of great toe
Inn: tibial nerve S2,S3
Act: flexes great toe, weakly plantarflexes ankle, suuports longitudinal arches of foot

37
Q

flexor digitorum longus

A

O: med part o post surface of tibia inf to soleal line and by broad tendon of fibula
I: bases of distal phalanges of lat 4 digits
Inn: tibial nerve S2,S3
Act: flexes lat 4 digits, plantarflex ankle, support longitudinal arch of foot

38
Q

tibialis posterior

A

O: interosseus membrane, post surface of tibia inf to soleus line, post surface of fibula
I: primarily to tuberosity of navicular, also to cuneiforms, cuboid and bases of 2nd, 4th metatarsals
Inn: tibial nerve L4,L5
Act: plantarflex ankle, invert foot, supports medial longitudinal arch

Gross Anatomy (4 decks)

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