Intrinsic Foot Muscles: 1st Layer Quiz

Questions and Answers

Which intrinsic foot muscle is responsible for the abduction of the MTP joint of the first toe?

Abductor hallucis (correct)

Flexor digitorum brevis

Quadratus plantae

Abductor digiti minimi

What is the primary action of the flexor digitorum brevis?

Abduction of the MTP joint 5

Extension of the MTP joint 1

Flexion of the MTP and DIP joints 2-5 (correct)

Medial rotation of the fifth toe

Which nerve innervates the abductor digiti minimi?

Deep peroneal nerve

Lateral plantar nerve (correct)

Sural nerve

Medial plantar nerve

Which muscle assists in the flexion of the MTP joint of the fifth toe?

Abductor digiti minimi Signup and view all the answers

What actions are performed by the abductor digiti minimi?

Abduction of the MTP joint 5 and flexion of the MTP joint 5 Signup and view all the answers

Which intrinsic foot muscle has its primary action as the flexion of the metatarsophalangeal joints of toes 2-5?

Flexor digitorum brevis Signup and view all the answers

What is the nerve supply for the abductor hallucis muscle?

Medial plantar nerve Signup and view all the answers

Which action is performed by the abductor digiti minimi?

Abduction of the 5th toe Signup and view all the answers

Which of the following intrinsic foot muscles is primarily responsible for the abduction of the first metatarsophalangeal joint?

Abductor hallucis Signup and view all the answers

Which nerve innervates the flexor digitorum brevis?

Medial plantar nerve Signup and view all the answers

Study Notes

Intrinsic Foot Muscles: 1st Layer

Abductor Hallucis
- Innervated by the medial plantar nerve (S1, S2)
- Responsible for abduction of the metatarsophalangeal (MTP) joint of the first toe
Flexor Digitorum Brevis
- Also innervated by the medial plantar nerve (S1, S2)
- Facilitates flexion at both the MTP and distal interphalangeal (DIP) joints for toes 2-5
Abductor Digiti Minimi
- Innervated by the lateral plantar nerve (S2, S3)
- Functions include abduction of the MTP joint of the fifth toe
- Assists in flexion at the MTP joint of the fifth toe

Intrinsic Foot Muscles: 1st Layer

Abductor Hallucis
- Innervated by the medial plantar nerve (S1, S2)
- Responsible for abduction of the metatarsophalangeal (MTP) joint of the first toe
Flexor Digitorum Brevis
- Also innervated by the medial plantar nerve (S1, S2)
- Facilitates flexion at both the MTP and distal interphalangeal (DIP) joints for toes 2-5
Abductor Digiti Minimi
- Innervated by the lateral plantar nerve (S2, S3)
- Functions include abduction of the MTP joint of the fifth toe
- Assists in flexion at the MTP joint of the fifth toe

Description

Test your knowledge on the intrinsic foot muscles, specifically the first layer. This quiz covers key muscles like the Abductor Hallucis, Flexor Digitorum Brevis, and Abductor Digiti Minimi, including their innervation and functions. Challenge yourself to recall their roles in foot movement and anatomy.