INNERVATION

Question 1

what is the innervation to the plantar aspect of the foot?

Answer 1

medial and lateral plantar nerves

Question 2

what are the medial and lateral plantar nerves branches of? where do they arise?

Answer 2

these are the branches of the tibial nerve

arise deep to the laciniate ligament

Question 3

where do the medial and lateral plantar nerves enter the foot and through what two structures? what arises out of here and it pierces _____?

Answer 3

deep to the abductor hallucis muscle belly

through the tarsal tunnel and the porta pedis.

medial calcaneal nerve; laciniate ligament/flexor retinaculum

Question 4

the medial calcaneal nerve supplies what?

Answer 4

cutaneous innervation

to the medial ½ of the calcaneal region.

Question 5

why is the medial ½ of the calcaneal region important?

Answer 5

a site of entrapment for the medial calcaneal nerve as it passes through the laciniate ligament

Question 6

where does the lateral calcaneal nerve arise from, like what nerve, fasciae?

Answer 6

the sural nerve, in the superficial fascia,

approximately 1” proximal to the lateral malleolus

Question 7

what does the lateral calcaneal nerve supply?

Answer 7

pass inferiorly to supply

the lateral ½ of the calcaneal region

Question 8

lateral plantar nerve components?

Answer 8

• ventral divisions ventral rami S-1 & S-2

Question 9

medial plantar nerve components?

Answer 9

• ventral divisions ventral rami L-4, L-5