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Muscular System > Lower Limb Muscles > Flashcards

Lower Limb Muscles Flashcards

1
Q

Origin and insertion and location of extensor digitorum longus

A

O: lateral tibial condyle and proximal 3/4 of fibula
I: phalanges of toes 2-5
Lateral to tibial is anterior

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2
Q

Extends hip when forceful extension is needed like climbing and jumping

A

Gluteus Maximus

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3
Q

Origin, insertion, location of tibial is anterior

A

O: upper tibia and parallels anterior crest
I: tarsal bones
Superficial of anterior leg

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4
Q

Acts to keep the upper body from falling backward when standing erect

A

Iliopsoas

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5
Q

Steadies the pelvis when walking

A

Gluteus medius

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6
Q

Helps flex hip because it crosses both hip and knee

A

Rectus femoris

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7
Q

What two fused bones makes up the iliopsoas

A

Iliacus and psoas major

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8
Q

Location origin and insertion of adductor muscles

A

Forms muscle mass at medial side of each thigh origin is the pelvis and insertion is the proximal femur

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9
Q

What does the gluteus Maximus form

A

Most of the buttocks

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10
Q

Why do adductor muscles become flabby easily

A

Gravity does most work the muscles so special exercises are need to keep them toned

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11
Q

Location and origin and insertion of hamstring group

A

Posterior thigh
origin is the ischial tuberosity
Insertion is both sides of proximal tibia

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12
Q

Prime mover of thigh extension and knee flexion

A

Hamstring group

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13
Q

What are the three muscles of the hamstring group

A

Biceps femoris
semimembranosus
semitendinosus

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14
Q

Location in origin and insertion of sartorius

A

Most superficial of thigh
origin is the anterior iliac
insertion is medial side of tibia

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16
Q

What is the Sartorius like

A

Thin and strap like

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17
Q

Prime mover of plantar flexion

A

Gastrocnemius

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18
Q

Another name for sartorius

A

Tailor’s muscle because it acts synergyst just to be able to sit

19
Q

Adducts or presses thighs together

A

Adductor muscles

20
Q

Origin and insertion of rectus femoris

A

Origin is the pelvis

Insertion is the tibial tuberosity via platellar ligament

22
Q

Extends knee powerfully

A

Rectus femoris

Vastus muscles

23
Q

Three fibularis muscles

A

Longus brevis and tertius

24
Q

Prime mover of hip flexion

A

Iliopsoas

25
Q

Brings thigh in straight line

A

Gluteus Maximus

25
Q

Origin and insertion of iliopsoas

A

Origin is the iliac bone in lower vertebrae deep inside pelvis insertion is the lesser trochanter of femur

25
Q

What is the Rectus femoris and Bastia muscles used for

A

Sometimes used as intramuscular injection site for infants with poorly developed gluteus muscles

28
Q

What happens if Achilles’ tendon is cut

A

Walking is difficult and foot drags cause heel can’t be lifted

29
Q

Prime mover of toe extension

A

Extensor digitorum longus

30
Q

Location and origin and insertion of fibularis muscles

A

Lateral part of leg
Origin is fibula
Insertion is metatarsal bones

31
Q

Dorsiflex and inverts foot

A

Tibialis anterior

32
Q

Origin and insertion of gluteus medius

A

O:Ilium
I: femur
Beneath gluteus Maximus

32
Q

Runs obliquely across thigh and is a weak thigh flexor

A

Sartorius

33
Q

Plantar flexion and eversion

A

Fibularis muscles

33
Q

Origin and insertion if gastrocnemius

A

Origin is the two heads on each side of distal femur

Insertion is the calcaneus bone via calc sneak (Achilles) tendon

34
Q

Flexes knee

A

Gastrocnemius

35
Q

How many bellies in gastrocnemius

A

Two bellies

36
Q

Origin and insertion of soleus and location

A

Origin is proximal tibia and fibula
Insertion is calcaneus bone via Achilles’ tendon
Deep to gastrocnemius

37
Q

Calcaneus tendon

A

Achilles’ tendon

38
Q

Plantar flexion

A

Soleus

39
Q

Origin and insertion of gluteus Maximus

A

O: sacrum and iliac bones
I: gluteal tuberosity of femur and large tendinuous iliotibial tract
Superficial muscle of hip

40
Q

Another name of gastrocnemius

A

Toe dancers muscles

41
Q

Hip abductor

A

Gluteus medius

Muscular System (7 decks)

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