List of flexors of the human body

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In anatomy, a flexion is a movement that decreases the angle between two bones at a joint. For example, your elbow joint flexes when you bring your hand closer to the shoulder. Flexion is typically instigated by muscle contraction. A muscle that flexes a joint is called a flexor. In anatomy, flexion (from the Latin verb flectere, to bend)[1] is a joint movement that decreases the angle between the bones that converge at the joint.


Upper limb[edit]

Lower limb[edit]


The iliacus and nearby muscles

The hip flexors are (in descending order of importance to the action of flexing the hip joint):[2]

Without the iliopsoas muscles, flexion in sitting position is not possible across the horizontal plane.[2]



See also[edit]

This article uses anatomical terminology; for an overview, see anatomical terminology.


  1. ^ Anderson, Kenneth N. et al., eds. (1994). Mosby's Medical, Nursing, & Allied Health Dictionary (4th ed.). St. Louis: Mosby-Year Book. p. 624. ISBN 9780801672255. OCLC 312496360. 
  2. ^ a b Platzer (2004), p 246
  3. ^ Knee Articulations
  4. ^ Foot Articulations