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Flexor Hallucis Longus Muscle – Attachments, Actions & Innervation

image descriptionFlexor Hallucis Longus Muscle

Flexor Hallucis Longus Muscle attached to the lower limb with other muscles
Flexor Hallucis Longus Muscle attached to the lower limb with other muscles
Flexor Hallucis Longus Muscle attached to the lower limb alone
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image descriptionAttachments of Flexor Hallucis Longus Muscle: Origin & Insertion

Origin: (proximal attachments):
a. Distal 2/3 of posterior surface of fibula.
b. Adjacent interosseous membrane.

Insertion: (distal attachments):
Base of distal 1st phalanx (along plantar surface).

Flexor Hallucis Longus Muscle attached to the lower limb with other muscles
Flexor Hallucis Longus Muscle attached to the lower limb alone
Flexor Hallucis Longus Muscle - Origin and Insertion
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Actions of Flexor Hallucis Longus Muscle on the foot:

a. image descriptionFlexes phalanx.

Phalangeal Flexion (2)
Phalangeal Flexion (2)
Phalangeal Flexion (3)
Phalangeal Flexion (4)
Phalangeal Flexion (5)

b. image descriptionPlantar flexes foot.

Plantar Flexion (1)
Plantar Flexion (2)
Plantar Flexion (3)
Plantar Flexion (4)
Plantar Flexion (5)

Nerve to Muscle and its Spinal Segment:

Tibial nerve (L5, S1, S2).

Overview:

Flexor Hallucis Longus Muscle - Test yourself
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Test yourself while observing the Flexor Hallucis Longus Muscle
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