Semimembranosus

Looks like

The deepest inner hamstring, with a flat tendon at its top, from the sitting bone to the back of the inner shinbone.

What it does

Bends the knee and straightens the hip; turns the leg inward.

Keeping it well

Its tendon can cause inner knee pain; a Baker's cyst forms nearby.

Related conditions

• Botulism
• Chronic venous insufficiency
• Fibromyalgia
• Frailty & falls in older age
• Growing pains
• Heat exhaustion & heatstroke
• Lymphatic filariasis (elephantiasis)
• Lymphoedema
• Malnutrition & refeeding syndrome
• Muscle strain (pulled muscle)
• Muscular dystrophy
• Polymyalgia rheumatica
• Restless legs syndrome
• Rhabdomyolysis
• Sarcoma
• Sarcopenia
• Tetanus
• Varicose veins