Hamstrings (Posterior thigh muscles)

Question 1

What are the muscles of the hamstrings? (3)

Answer 1

• Biceps Femoris
• Semimembranosus
• Semitendinosus

Question 2

Biceps Femoris

Answer 2

O: Ischial tuberosity (long head) and linea aspera (short head)

I: Head of fibula

I: Tibial part of sciatic nerve (long head) and common peroneal/common fibular of sciatic nerve (short head)

A: Extend the thigh at hip, knee flexion and lateral rotation (both hip and knee)

Question 3

Semimembranosus

Answer 3

O: Ischial tuberosity

I: Medial tibial condyle

I: Tibial part of the sciatic nerve

A: Extend the thigh at hip, knee flexion and medial rotation (both hip and knee)

Question 4

Semitendinosus

Answer 4

O: Ischial tuberosity

I: Pes anserinus (tibia)

I: Tibial part of sciatic nerve

A: Extend the thigh at hip, knee flexion and medial rotation (both hip and knee)