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.
Flexors
Upper limb
- of forearm at elbow
- Brachialis
- Brachioradialis
- Biceps brachii
Lower limb
Hip
The iliacus and nearby muscles
The hip flexors are (in descending order of importance to the action of flexing the hip joint):[2]
- Collectively known as the iliopsoas or inner hip muscles:
- Anterior compartment of thigh
- Rectus femoris (part of the quadriceps muscle group)
- Sartorius
- One of the gluteal muscles:
- Tensor fasciae latae
Without the iliopsoas muscles, flexion in sitting position is not possible across the horizontal plane.[2]
Leg
- of leg at knee (L5-S2)[3]
- Posterior compartment of thigh/Hamstrings
- Gracilis
- Sartorius
- Tensor fasciae latae
- Gastrocnemius
- Popliteus
- Plantaris (negligible)
- of toes
- Posterior compartment of leg
- Flexor hallucis longus
- Flexor digitorum longus
- Flexor digitorum brevis
- Quadratus plantae
- Flexor hallucis brevis
- Flexor digiti minimi brevis
- Posterior compartment of leg
- of proximal phalanges at metatarsophalangeal joint[4]
- Lumbrical muscle (foot)
- Plantar interossei
- Dorsal interossei
Other
See also
- This article uses anatomical terminology; for an overview, see anatomical terminology.
References
External links
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