Posterior Thigh Flashcards

1
Q

Name the 4 posterior thigh muscles

A

Semitendinosus
Semimembranosus
Biceps femoris - long and short head

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2
Q

Which of the 4 posterior thigh muscles are hamstrings?

A

Semitendinosus
Semimembranosus
Long head of biceps femoris

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3
Q

What is the origin and insertion of the semitendinosus?

A

Origin: Ischial tuberosity
Insertion: Medial tibia

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4
Q

What is the origin and insertion of the semimembranosus?

A

Origin: Ischial tuberosity
Insertion: Posterior tibia

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5
Q

What is the origin and insertion of the long head of the biceps femoris?

A

Origin: Ischial tuberosity
Insertion: Fibular head

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6
Q

What is the origin and insertion of the short head of the biceps femoris?

A

Origin: Linea aspera
Insertion: Fibular head

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7
Q

What is the innervation of all the posterior thigh muscles And what is the exception?

A

All innervated by the tibular division of the sciatic nerve (L5, S1, S2)
Except the short head of the biceps femoris - common fibular nerve

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8
Q

What are the actions of the posterior thigh muscles?

A

Hip extension

Knee flexon

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