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Questions and Answers
What is the root nerve supply of the flexor hallucis brevis muscle?
What is the root nerve supply of the flexor hallucis brevis muscle?
- L3, L4
- L1, L2
- S1, S2 (correct)
- S2, S3
Which of the following actions is performed by the adductor hallucis muscle?
Which of the following actions is performed by the adductor hallucis muscle?
- Dorsiflexion of the foot
- Adduction of MTP joint 1 (correct)
- Flexion of MTP joint 5
- Extension of MTP joint 1
Which nerve innervates the flexor digiti minimi muscle?
Which nerve innervates the flexor digiti minimi muscle?
- Medial plantar nerve
- Superficial peroneal nerve
- Deep peroneal nerve
- Lateral plantar nerve (correct)
What is the main action of the flexor hallucis brevis muscle?
What is the main action of the flexor hallucis brevis muscle?
Which muscle is responsible for flexion of the MTP joint 5?
Which muscle is responsible for flexion of the MTP joint 5?
Which muscle is supplied by the medial plantar nerve?
Which muscle is supplied by the medial plantar nerve?
What action is performed by the adductor hallucis muscle?
What action is performed by the adductor hallucis muscle?
Which of the following muscles is innervated by the lateral plantar nerve?
Which of the following muscles is innervated by the lateral plantar nerve?
What is the root nerve supply for the flexor digiti minimi muscle?
What is the root nerve supply for the flexor digiti minimi muscle?
Which action is associated with the flexor hallucis brevis?
Which action is associated with the flexor hallucis brevis?
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Study Notes
Intrinsic Foot Muscles - 3rd Layer
-
Flexor Hallucis Brevis
- Innervated by the medial plantar nerve.
- Originates from the S1, S2 nerve roots.
- Function: Flexes the metatarsophalangeal (MTP) joint of the big toe.
-
Adductor Hallucis
- Innervated by the lateral plantar nerve.
- Originates from the S2, S3 nerve roots.
- Function: Adducts the MTP joint of the big toe.
-
Flexor Digiti Minimi
- Innervated by the lateral plantar nerve.
- Originates from the S2, S3 nerve roots.
- Function: Flexes the MTP joint of the little toe.
Intrinsic Foot Muscles - 3rd Layer
-
Flexor Hallucis Brevis
- Innervated by the medial plantar nerve.
- Originates from the S1, S2 nerve roots.
- Function: Flexes the metatarsophalangeal (MTP) joint of the big toe.
-
Adductor Hallucis
- Innervated by the lateral plantar nerve.
- Originates from the S2, S3 nerve roots.
- Function: Adducts the MTP joint of the big toe.
-
Flexor Digiti Minimi
- Innervated by the lateral plantar nerve.
- Originates from the S2, S3 nerve roots.
- Function: Flexes the MTP joint of the little toe.
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