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Anatomical Terms Of Motion
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Wiki: List Of Flexors Of The Human Body
In anatomy, flexor is a muscle that contracts to perform flexion (from the Latin verb flectere, to bend), a movement that decreases the angle between the converging at a joint. For example, one's elbow joint flexes when one brings their hand closer to the shoulder, thus decreasing the angle between the upper arm and the forearm.
Flexors
Upper limb
- of the humerus (the bone in the upper arm) at the shoulder
- of the forearm at the elbow
- of Carpal bones at the wrist
- flexor carpi radialis
- flexor carpi ulnaris
- palmaris longus
- of the hand
- flexor pollicis longus muscle
- flexor pollicis brevis muscle
- flexor digitorum profundus muscle
- flexor digitorum superficialis muscle
Lower limb
Hip
- Collectively known as the iliopsoas or inner hip muscles:
- Psoas major
- Iliacus muscle
- Anterior compartment of thigh
- Rectus femoris (part of the quadriceps muscle group)
- Sartorius muscle
- One of the gluteal muscles:
- Tensor fasciae latae
- Medial compartment of thigh
- Pectineus muscle
- Adductor longus
- Adductor brevis
- Gracilis muscle
Without the iliopsoas muscles, flexion in sitting position is not possible across the horizontal plane.
Thigh
- of thigh at knee (L5-S2) Knee Articulations
- Biceps femoris
- Semitendinosus
- Semimembranosus
- Gracilis muscle
- Sartorius muscle
- Gastrocnemius
- Popliteus muscle
- Plantaris muscle (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
- of proximal phalanges at metatarsophalangeal joint Foot Articulations
- Lumbrical muscle (foot)
- Plantar interossei
- Dorsal interossei
Other
- torso/lumbar vertebrae
- Rectus abdominis muscle
- neck at atlanto-occipital joint
- Longus capitis muscle
- Longus colli muscle
See also
- List of extensors of the human body
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