Dissection 7 Flashcards
What joint joins the talus and calcaneus?
subtalar joint
What are the 2 midtarsal joints?
calcaneocuboid and talocalcaneonavicular
What type of joint are the midtarsal joints?
synovial
what are the movements at the midtarsal joints?
inversion adn eversion
What muscles produce inversion of the foot?
tibialis anterior and tibialis posterior
What muscles produce eversion of the foot?
fibularis muscles
What is the tarsometatarsal joint made up of?
between the cuneiforms/ cuboid proximally and the metarsals
What type of joint are the metatarsophalangeal joints?
synovial
What movements do the MTP joints allow?
flexion; extension; abduction; adduction and circumduction of the digits
What type of joitn are the interphalangeal joints?
synovial hinge joints
What movements occur at the interphalangeal joints?
flexion and extension of the toes
What are the functions of the arches of the foot?
provide shock absorption; push off spring and increased weight bearing capacity by weight redistribution
What supports the arches of the foot?
plantar aponeurosis and the plantar ligaments
What is the plantar aponeurosis?
a thickened central area of plantar fascia- the feep fasica of the sole of the foot
What forms the medial longitudinal arch?
the bones of hte medial aspect of hte foot
What bones make up the medial aspect of the foot?
calcaneus; talus; navicular; 3 cuneiforms and metatarsals 1-3
What is the medial longitudinal arch supported by?
the flexor hallucis longus and the attachments of tibilais anterior and fibularis longus
What is the attachment of tibilais anterior?
junction between the medial cuneiform and base of 1st metatarsal
What is the attachment of fibularis longus?
tendon passses acorss the plantar aspect of hte bones of the foot from lateral to medial to also attach to the medial cuneiform and base of the 1st metatarsal
What is the lateral longitudinal arch formed by?
calcaneus; cuboid and metatarsals 4 and 5
Waht does the transverse arch consist of?
the cuboid; cuneiforms and the bases of all 5 metatarsals
What muscles is the transverse arch supported by?
fibularis longus and tibialis posterior
What defines an intrinsic muscle of the foot?
attach proximally and distally within the foot
Where are the intrinsic muslces of the foot mainly located?
compartments within the sole where they are arranged in 3 layers
What movements do the sole/interosseous muscles produce?
flexion (sole )and abduction/adduction of the toes (interossei)
What do the 2 dorsal muscles do?
short extensors of the toes
What artery is the dorsalis pedis artery a branch of?
anterior tibial artery
What does the dorsalis pedis artery give branches to on the dorsum of the foot?
arcuate artery
What are the medial and lateral plantar arteries branches of?
posterior tibial artery
What do the medial and lateral plantar arteries conrtibute to?
deep plantar arch
From what do the metatarsal arteries arise?
deep plantar arch and the arcuate artery
What do the the metatarsal arteries branch into?
digital arteries
How many digital arteries are there per toe?
4
What is the superficial vein of the foot?
dorsal venous arch
What does the dorsal venous arch give rise to?
great(medially) and small (laterally) saphenous veins
What do the deep veins of th efoot accompany?
the arteries of the foot
What do the deep veins of hte foot drain into?
anterior and posterior tibial veins and the fibular veins
What do the anterior and posterior tibial veins and the fibular veins join to for,?
the popliteal vein
What is the motor supply to the muscles of the sole?
tibial nerve
what is the motor supply to the muscles of the dorsum?
deep fibular nerve
What is the sensory nerve supply to the dorsum mainly?
superficial fibular nerve
Waht does the deep fibular nerve supply?
the first interdigital cleft
What does the sural nerve supply?
the proximal lateral border
Waht does the saphnous nerve supply?
the proximal medial border
What is the main nervous supply to the plantar surface of the foot?
tibial nerve- hell and amjority of sole
What supplies the proximal lateral border of the plantar surface of the foot?
sural nerve
What supplies the proximal medial border of hte plantar surface of hte foot?
saphenous nerve
What do the lymphatic vessels in the foot accompany up the leg?
the great and small saphenous veins
