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clinical kinesiology > chapter 18 knee muscles > Flashcards

chapter 18 knee muscles Flashcards

1
Q

the origin, insertion, action of vastus lateralis

A

O: Linea aspera
I: Tibial tuberosity via patellar tendon
A: Knee extension

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2
Q

the origin, insertion, action of vastus medalis

A

O: Linea aspera
I: Tibial tuberosity via patellar tendon
A: Knee extension

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3
Q

the origin, insertion, action of vastus intermedialis

A

O: Anterior femur
I: Tibial tuberosity via patellar tendon
A: Knee extension

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4
Q

the origin, insertion, action of biceps femoris

A

O: Long head: Ischial tuberosity;
Short head: lateral lip of linea aspera
I: Fibular head
A: Long head: Extend hip, flex knee;
Short head: Flex knee

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5
Q

the origin, insertion, action of semitendinosus

A

O: Ischial tuberosity
I: Anteromedial surface of proximal tibia
A: Extend hip, flex knee

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6
Q

the origin, insertion, action of semimembranosus

A

O: Ischial tuberosity
I: Posterior surface of
medial condyle of tibia
A: Extend hip, flex knee

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7
Q

the origin, insertion, action of gastrocnemius

A

O: Medial and lateral condyles of femur
I: Posterior calcaneus
A: Knee flexion, ankle plantar flexor

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7
Q

the origin, insertion, action of popliteus

A

O: Lateral condyle of femur
I: Posteriorly on medial condyle of tibia
A: Initiates knee flexion

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8
Q

which muscles has Tibial nerves

A

gastrocnemius s1,s2

popliteaus l4,l5,s1

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9
Q

which muscles has femoral nerve

A

Rectus Femoris,

Vastus Lateralis,

Vastus Medialis l2,l3,l4

Vastus Intermedialis

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10
Q

which muscles has sciatic nerve

A

Semitendinosus

Biceps Femoris- short=Sciatic nerve , long= Common peroneal nerve

Semimembranosus

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11
Q

Contributes to lateral stability

A

tenso fascia latae

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12
Q

Contribute to medial stability

A

Gracilis and sartorius

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13
Q

Medial and lateral stability

A

Gastrocnemius and hamstrings

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14
Q

Anterior stabilizer

A

quadriceps

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15
Q

Gracilis, sartorius, and tensor fascia latae what are they main function

A

span knee posteriorly

Provide stability to the knee

Do not have a prime-mover function
Size Angle of pull

16
Q

With nonfunctioning quadriceps, stance is possible by

A

gluteus maximus and gastrocnemius action

In weight-bearing position, the two muscle contract, pulling the knee into extension

17
Q

what are the five muscles that help with knee extension of the gastrocnemius

A

Q - Quadriceps

T -Tensor fascia latae

GL- Gluteus maximus

G- Gastrocnemius

S- Soleus

18
Q

define the ACL function

A

prevents displacement of anterior tibia on femur, posterior displacement of femur on tibia

19
Q

what muscles anterior is single joint

A

the vastus muscles lateralis, medialis, intermedialis

20
Q

what muscle anterior is multi joint

A

rectus femoris

21
Q

which muscles posterior is single joint

A

biceps femoris short head, popliteus

22
Q

which posterior muscles are multi joint

A

hamstrings, gracilis, sartorius, gastrocnemius, planteris, biceps femoris long head,

23
Q

the origin, insertion, action of tensor fascia latae

A

o; asis, I; iliotibial band to lateral condyle of tibia, a; abduction, hip flexion

24
Q

what are the muscles for knee extension

A

quadriceps,

Rectus Femoris
Vastus Medialis
Vastus Intermedialis
Vastus Lateralis

25
Q

what are the muscles for knee flexion

A

hamstrings,

Semimembranosus
Semitendinosus
Biceps Femoris
Popliteus
Gastrocnemius

26
Q

what are the muscles for lateral rotation open chain

A

biceps femoris long and short

26
Q

what are the muscles for medial rotation open chain

A

Semimembranosus
Semitendinosus,
popliteus

27
Q

what is the range of knee flexion

A

135

28
Q

what is the range of knee extension

A

10

29
Q

what is the range of knee medial and lateral rotation

A

15

30
Q

open chain (tibia on femur) flexion

A

distal - posterior and superior

roll - posterior

glide - posterior

31
Q

open chain (tibia on femur) extension

A

distal - anterior and inferior

roll - anterior

glide - anterior

32
Q

open chain (tibia on femur) medial rotation

A

distal - medial

spin - medial

glide - medial tibial plateau posterior

33
Q

open chain (tibia on femur) lateral rotation

A

distal - lateral

spin - lateral ( screw home )

glide - lateral tibial plateau posterior ( screw home)

34
Q

closed chain ( femur on tibia ) flexion

A

distal - posterior and inferior

roll - posterior

glide - anterior

35
Q

closed chain ( femur on tibia ) extension

A

distal - anterior and superior

roll - anterior

glide - posterior

36
Q

closed chain ( femur on tibia ) medial rotation

A

distal - medial

spin - medial ( screw home )

glide - medial condyle femoral posterior ( screw home)

37
Q

closed chain ( femur on tibia ) lateral rotation

A

distal - lateral

spin - lateral

glide - lateral condyle femoral posterior

clinical kinesiology (29 decks)

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