Practical 05 - Posterior Thigh, Popliteal Fossa, Osteology of Tibia and Fibula Flashcards

1
Q

biceps femoris , semimembranous and semitendinosus

A

hamstrings

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2
Q

which joints do hamstrings cross

A

hip and knee joint
act at both joints
contract to assist gluteus maximum ogf lower limb with hip extension

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3
Q

hamstrings assist which movements

A

extension of lower limb at hip joint
flexion at knee joint

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4
Q

biceps femoris has 2 heads long and short the biceps femoris is the most ……… of the hamstrings

a.lateral
b.medial

A

a.lateral

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5
Q

semitendinosus is the most ………. of the hamstrings with a very long tendon

a.lateral
b.medial

A

b.medial

semi membranosis is immediately deep to this

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6
Q

where does the long head of biceps femoris originate

A

ischial tuberosity

so do the semi muscles

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7
Q

where does the short head of biceps femoris arise

A

linea aspera
on back of femur

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8
Q

where does the common tendon of biceps femoris insert

A

head of fibula

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9
Q

where does semitendinosus muscle insert

A

upper anterior aspect of proximal tibia

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10
Q

where does semi membranosus insert

A

higher than semimem on proxima; tibia

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11
Q

which spinal nerves form sciatic nerve

A

l4,l5,s1,s2,s3

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12
Q

a torn cruciate ligament is replaced by a portion of which muscle

A

semitendinosus

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13
Q

the hamstrings function

A

extend lower limb at hip joint

flex lower limb at knee joint

biceps femoris allows for small amount of lateral rotation at knee in extension

others allow for small amount of medial rotatio

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14
Q

upper lateral boundary of popliteal fossa is formed by …

A

biceps femoris

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15
Q

upper medial boundary of popliteal fossa is formed by …..

A

semi ten and semi mem muscles

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16
Q

gastrocnemius has 2 heads

A

lateral head- lower lateral border of popliteal fossa

medial head- medial lower border of popliteal fossa

17
Q

what nerves travel through popliteal fossa

A

tibial nerve - medial
common fibular nerve - lateral

along with popliteal aa and vv

18
Q

what makes up the roof of the popliteal fossa

A

skin and fascia
floor - popliteus muscle