Anatomy study note · Lower limb

Semitendinosus

A medial hamstring with a long tendon running to the upper medial tibia.

Key points

• Ischial tuberosity → upper medial tibia (with sartorius and gracilis).
• Tibial part of the sciatic nerve.
• Knee flexion + medial rotation; hip extension.
• Limb muscles: in situ from limb-bud mesenchyme.
• Upper limb bud C4–T2; lower limb bud L2–S2.
• Skeletal muscle: multinucleated, peripheral nuclei, striated.
• Epimysium → perimysium → endomysium.

The full note in the atlas also covers

Origin · Insertion · Action · Nerve supply · Histology · Development

Sign in free to see it on the 3D model, read the full note and practise questions on it.

Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 11, PDF pp. 1328, 1330
• Inderbir Singh’s Human Embryology, ch. 7, PDF p. 109; ch. 10, PDF pp. 142–145
• BRS Cell Biology & Histology, 7th ed., ch. 8, PDF pp. 135–144

More from the lower limb

• Short lateral rotators of the hip
• Small saphenous vein
• Sole muscles: first layer
• Sole muscles: second layer
• Sole muscles: third layer
• Soleus
• Superficial fibular nerve
• Sural nerve
• Tarsal bones
• Tarsal joints and arches of the foot
• Tendo calcaneus
• Tensor fasciae latae

Privacy policy · Designed by DATXOC LLC.