Plantar aspect of the foot Flashcards
What bones make up the medial longitudinal arch?
Calcaneus Navicular Talus 3 cuneiforms medial 3 metatarsals and medial 3 digits
What bones make up the lateral longitudinal arch?
Calcaneus
Cuboid
Lat 2 metatarsals
Lat 2 digits
What is higher? Medial or lateral longitudinal arch
Medial
What bones make up the transverse arch?
Cuboid
all 3 cuneiforms
What is the role of the transverse arch?
Shape helps provide support
What provides passive support to the foot?
Plantar aponeurosis
What provides dynamic support to the foot?
Tib ant
Tib post
flex hall long -tendons
flex dig long - tendons
How many layers are there of the plantar aspect of the foot?
6 layers
4 muscular and 2 neurovascular
What does the post tib artery divide into?
Med and lat plantar arteries
What does the tibial nerve divide into?
Med and lat plantar nerve
Role of the plantar aponeurosis
Protective function
What muscles are in muscle layer 1
Flex dig brev
abd hall
abd dig min
What nerve innervates flex dig brev
Med plant
What nerve inn abd hall
Med plant
What msucles are in muscle layer 2
Quadratus plantae
Lumbricals
TENDONS of flex hall long and flex dig long
what nerve inn 1st lumbrical
Med plant
What are the muscles in muscle layer 3
add hall
flex hall brev
flex dig min brev
What is the role of the lumbircals
FLex digits 2-5 at MPJ and ext at IPJ
How many head on add hall and what are they called
2
Oblique and transverse
What are the muscles in muscle layer 4
Plantar interosseous muscles
Role of plantar interosseous muscles
- add of the lat 3 dig
