Anatom3DFlexor accessorius
Musculus quadratus plantae · Čtyřhranný sval chodidla
Muscles
Looks like
A flat, square muscle in the sole (quadratus plantae), from the heel bone to the long toe flexor tendon.
What it does
Straightens the pull of the long toe flexor so the toes curl straight, and helps when the calf is relaxed.
Keeping it well
Rarely a problem on its own; it can be involved in heel pain and nerve entrapment in the sole.
Related conditions
- Botulism
- Buerger's disease (thromboangiitis obliterans)
- Chronic venous insufficiency
- Clubfoot (talipes equinovarus)
- Fibromyalgia
- Flat feet (pes planus)
- Frailty & falls in older age
- Ganglion cyst
- Gout
- Hammer toe and claw toe
- Heat exhaustion & heatstroke
- Lymphatic filariasis (elephantiasis)
- Lymphoedema
- Malnutrition & refeeding syndrome
- Morton's neuroma
- Muscular dystrophy
- Polymyalgia rheumatica
- Restless legs syndrome
- Rhabdomyolysis
- Sarcoma
- Sarcopenia
- Tetanus
- Varicose veins
- Venomous snakebite