Lower Leg Flashcards
(18 cards)
What is the origin of the Tibialis anterior muscle?
Lateral condyle of tibia
The Tibialis anterior is located in the anterior compartment of the leg.
What is the insertion point for the Tibialis anterior muscle?
Medial cuneiform and 1st metatarsal
This muscle is responsible for dorsiflexion and inversion of the foot.
What is the primary action of the Tibialis anterior muscle?
Dorsiflexes foot at ankle and inverts foot
Dorsiflexion refers to raising the foot upwards.
What is the origin of the Extensor hallucis longus muscle?
Anterior fibula and interosseous membrane
This muscle helps in extending the big toe.
What is the insertion point for the Extensor hallucis longus muscle?
Distal phalanx of hallux
The hallux is the big toe.
What action does the Extensor hallucis longus muscle perform?
Extends 1st interphalangeal joint
It also assists in dorsiflexion of the foot.
What is the origin of the Extensor digitorum longus muscle?
Lateral condyle of tibia and proximal fibula
This muscle is part of the anterior compartment as well.
What is the insertion point for the Extensor digitorum longus muscle?
Middle and distal phalanges of 2nd-5th digits
It extends the toes and dorsiflexes the foot.
What are the actions of the Extensor digitorum longus muscle?
Dorsiflexes foot at ankle, extends 1st interphalangeal joint, and extends 2nd-5th distal interphalangeal joints
This muscle extends the four lesser toes.
What is the origin of the Fibularis (peroneus) tertius muscle?
Anterior fibula and interosseous membrane
It is associated with the lateral compartment of the leg.
What is the insertion point for the Fibularis (peroneus) tertius muscle?
5th metatarsal
This muscle assists in movements of the foot.
What actions does the Fibularis (peroneus) tertius muscle perform?
Dorsiflexes foot at ankle and everts foot
Eversion refers to turning the sole of the foot outward.
What is the origin of the Fibularis (peroneus) longus muscle?
Head of fibula
This muscle is crucial for plantar flexion and eversion.
What is the insertion point for the Fibularis (peroneus) longus muscle?
Medial cuneiform and 1st metatarsal
It plays an important role in stabilizing the foot.
What actions does the Fibularis (peroneus) longus muscle perform?
Plantar flexes foot at ankle and everts foot
Plantar flexion refers to pointing the toes downwards.
What is the origin of the Fibularis (peroneus) brevis muscle?
Distal fibula
This muscle is also involved in foot eversion.
What is the insertion point for the Fibularis (peroneus) brevis muscle?
5th metatarsal
It assists in movements similar to the Fibularis longus.
What actions does the Fibularis (peroneus) brevis muscle perform?
Plantar flexes foot at ankle and everts foot
This muscle helps stabilize the lateral aspect of the foot.
