Left biceps femoris short head

Identify biceps femoris short head

The short head is the femoral component of biceps femoris in the posterior thigh.

Its femoral origin and different nerve supply distinguish it from the ischial-origin hamstrings. It is included here as part of the posterior thigh group.

Sources: Posterior thigh anatomy tables · Posterior thigh teaching notes

Principal attachments

A principal origin is the lateral lip of the femur's linea aspera. Distally it joins the biceps femoris attachment toward the fibular head.

Use Show context on this structure page to reveal the same-side bones. Attachment areas named in the text are not separately clickable landmarks.

Sources: Posterior thigh anatomy tables

Function and joint crossing

It bends the knee. Unlike the long head, it does not cross or directly extend the hip.

This is a static surface study. Camera controls do not simulate muscle shortening, joint rotation or a measured range of motion.

Sources: Posterior thigh teaching notes

Innervation

Motor supply: common fibular division of the sciatic nerve.

Nerves and blood vessels are absent from the current model. This text is not a patient-specific nerve map.

Sources: Posterior thigh teaching notes

Read the model

Explore left biceps femoris short head in 3D

1. Look from behind. Choose Back in isolation and inspect the upper end. Then show context and compare its femoral location with the longer head.
2. Restore the same leg. Show context restores 31 bones and 21 muscle parts on this side. Use Focus selection to return attention to the chosen structure.
3. Compare the posterior group. The regional thigh close-up omits the tibia and fibula; use this full-leg structure page when inspecting distal attachment context. Left posterior thigh guides →

Sources and editorial status

This guide uses independently written explanations with links to the evidence behind them. Source checking and specialist anatomical review are separate steps; the latter is still pending.

1. Texas Tech University Health Sciences Center El Paso — Hip, posterior thigh and leg anatomy tables

   Principal attachments and medial/lateral relationships. These short descriptions are not an exhaustive list of tendon expansions.

2. Texas Tech University Health Sciences Center El Paso — Hip and posterior thigh dissector answers

   Posterior thigh group, the short-head exception and tibial versus common fibular divisions. No source text or dissection photographs are reproduced.

3D geometry and its separate license are credited beneath the viewer. References do not imply endorsement of this site.