Anatomy 3: Ankle

What makes up Tom, Dick, and Very Nervous, Harry? Where can it be found?

tibialis anterior, FDL, post Tib Ant. Tib Artery, Tibial nerve, post tibial vein, and FHL

What ligaments make up the deltoid ligament? What does this resist?

tibionavicular, tibiocalcaneal, & ant/post tibiotalar...resist excessive eversion

Where are the cuneiforms located? What direction do they point?

1st cuneiform medial side, 2nd middle wedge-shaped points downward, and 3rd lateral most upward

True/False: the lateral malleolus restricts excessive inversion

False (eversion)

What is so signficant about the sustenaculum tali?

TOM, DICK, AND NERVOUS HARRY run under here

What ankle bone is responsible for bearing the weight of the body?

Talus

Sciatic nerve in the posterior compartment turns into the_______ & also turns into the____________ which breaks down into the _________ (lateral compart) & ________(anterior compart)

Tibial....common fibular....superficial fibular....deep fibular

True/False: the ankle joint is relatively unstable during plantarflexion.

True

True/False: there are 3 calcaneal tuberosity.

True

What actions are involved supination?

adduction, plantarflexion, & inversion

What structures make up the tibio-fibular syndesmosis?

anterior & posterior interosseous membranes & posterior tibiofibular ligaments at distal extremities

What ligaments are damaged in a high ankle sprain?

anterior & posterior tibiofibular

Why does the posterior talofibular resist excessive stress?

b/c this ligament wraps from lateral mallei around to talus

The spring ligament is AKA ____________ & runs from ________ to ________ & is responsible for...

calcaneaonavicular ligament running from sustenaculum cali to navicular bone....helps to form one of the foot arches

What is the heel bone?

calcaneus

What is a thrombosis?

clot formation

What ligament is damaged during an eversion ankle sprain?

deltoid ligament

What is another name for a moving clot?

embolism

Where is the fibular notch?

flat surface on lateral distal portion of tibia

The talocrural joint is a _______ joint & responsible for most what actions?

hinge joint & dorsi & plantarflexion

What is the function of the retinaculum?

keeps all tendons in place so pulley systems work correctly

What structures are damaged inversion ankle sprain?

lateral structures/ligaments are torn or over-stretched anterior tibio-fibular ligament

Where is the soleal line of the tibia?

posterior border of tibia

What is the function of the peroneal (fibular) tubercle?

pully system for fibular tendons

Where does the calcaneal fibular ligament run?

run lateral malleoi to calcaneal

Where is the anterior talofibular ligament?

runs lateral malleoli distal to talus

What is another name for the ankle joint? What does it connect?

talocrural joint...tibia & fibula

The ________ is the smooth top surface of the talus & the head communicates with?

trochlear surface & communicates directly with the navicular

Where is the subtalar joint located? What action is done at this joint?

undersurface of talus & articulates calcaneus.... inversion & eversion

What occurs during varicose veins?

veins have valves are longer working properly causing backflow of blood also causing twisted & convoluted