Posterior Thigh Muscles

  • Created by: ftpptf
  • Created on: 02-05-18 15:18
What is the proximal attachment of semitendinosus?
Ischial tuberosity.
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What is the distal attachment of semitendinosus?
Medial surface of superior part of tibia.
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What is the innervation of semitendinosus?
Tibial division of sciatic nerve (L5, S1, S2).
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What are the main actions of semitendinosus?
Extend hip joint and flex knee joint. Medially rotate leg when knee is flexed. Extend trunk when hip and knee flexed.
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What is the proximal attachment of semimembranosus?
Ischial tuberosity.
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What is the distal attachment of semimembranosus?
Posterior part of medial condyle of tibia. Reflected attachment forms oblique popliteal ligament (to lateral femoral condyle).
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What is the innervation of semimembranosus?
Tibial division of sciatic nerve (L5, S1, S2).
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What are the main actions of semimembranosus?
Extend hip joint and flex knee joint. Medially rotate leg when knee is flexed. Extend trunk when hip and knee flexed.
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What are the proximal attachments of biceps femoris?
Long head = ischial tuberosity. Short head = linea aspera and lateral supracondylar line of femur.
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What are the distal attachments of biceps femoris?
Lateral side of head of fibula, tendon is split at this site by fibular collateral ligament of knee.
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What are the innervations of biceps femoris?
Long head = tibial division of sciatic nerve (L5, S1, S2). Short head = common fibular division of sciatic nerve (L5, S1, S2).
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What are the main actions of biceps femoris?
Flexes knee joint and rotates it laterally when knee is flexed. Extends hip joint (e.g. when starting to walk).
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Other cards in this set

Card 2

Front

What is the distal attachment of semitendinosus?

Back

Medial surface of superior part of tibia.

Card 3

Front

What is the innervation of semitendinosus?

Back

Preview of the front of card 3

Card 4

Front

What are the main actions of semitendinosus?

Back

Preview of the front of card 4

Card 5

Front

What is the proximal attachment of semimembranosus?

Back

Preview of the front of card 5
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