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Anatomy Final
Leg
21
Anatomy
Professional
12/06/2008

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Cards

Term
Which muscle is obvious when foot is inverted and dorsiflexed? Which muscle when foot is everted and dorsiflexed?
Definition
1.) tibialis anterior
2.) fibularis tertius
Term
Which nerve is palpable posterior to the fibular head?
Definition
common fibular nerve
Term
The tibial tuberosity serves as a landmark for what two things?
Definition
bifurcation of the popliteal artery and also the head of the fibula
Term
Which bone contiues more distally, the fibula or the tibia? And which part of that bone is more commonly fractured?
Definition
1.) fibula
2.) distal end of the bone (it is subcutaneous distally)
Term
Is the deep fibular nerve in the anterior compartment of the leb? Is the fibular nerve in the posterior compartment of the leg?
Definition
Yes and Yes
Term
What type of joints are the proximal and distal tibiofibular joints respectively? Which arteries supply each? What nerves supply each?
Definition
1. synovial and syndesmosis (bone united with fibrous sheath)
2. inferior lateral genicular and anterior tibial recurrent supply proximal tibiofular joint. Distal joint is supplied by perforating branch of fibular artery and medial malleolar branch of anterior and posterior tibial arteries.
3.) Proximal tibiofibular joint is innervated by common fibular and popliteus nerves. Distal tibiofibular joint is innervated by deep fibular, tibial, and saphenous nerves.
Term
Impact from a fender bender or axial loading (fall) or a laterally directed brunt force all may result in what?
Definition
tibial plateau fracture
Term
What are the muscles of the anterior compartment of the leg and what are their main actions? Which muscle, when injured is most associated with foot drop? What is the main artery and nerve of this compartment?
Definition
1.) Fibularis tertius dorsiflexes and everts the foot, Extensor hallucis longus extends big toe, Extensor digitorum longus (extends toes 2-5), and Tibialis anterior flexes foot to bring it off the ground.
Tibialis anterior is most associated with foot drop.
3.) anterior tibial artery and deep fibular nerve
Term
What is associated with edema and pain in distal 2/3 of tibia after not warming up?
Definition
anterior tibialis strain
Term
What nerve is liable to be entrapped after snow skiing, causing pain in dorsum of foot, radiating to webbed spaced between digits 1-2?
Definition
deep fibular nerve entrapment
Term
What are the muscles of the lateral compartment of the leg & how do they act? What is the primary arterial and nervous supply of these muscles?
Definition
1.) Fibularis longus helps to stablize a person standing on one foot and Fibularis brevis, along with the former, helps to evert the foot.
2.) Lateral compartment does not have its own arterial supply, but gets supplied superiorly by perforating branches of the anterior tibial artery and inferiorly by perforating branches of the fibular artery. The main nerve is the superficial fibular nerve.
Term
What may have occurred after chronic ankle sprains and a feeling of paresthesia on lateral aspect of leg and dorsum of foot?
Definition
superficial nerve entrapment
Term
What nerve may be injured with foot drop, high stepping gait, a dislocated hip, or a fibular neck fracture?
Definition
Common fibular nerve injury
Term
What muscle, besides the sartorius, crosses two joints?
Definition
Gastrocnemius (knee and ankle joints)
Term
What are the muscles of the superficial posterior compartment of the leg & what do they do?
Definition
1.) gastrocnemius helps you long jump; soleus helps you stroll; and plantaris really doesn't do all that much other than donate a tendon for transplants.
2.) the main nerve is the tibial nerve and the main artieries are the circumflex fibular artery and the posterior tibial artery.
Term
what muscles make up the triceps surae?
Definition
gastrocnemius medial head, gastrocnemius lateral head, and soleus
Term
What has likely happened if ball appears in calf and there is no nerve reflex for S1 or S2
Definition
A complete rupture of the calcaneal tendon forms a bells and will not respond to an ankle reflex test (S1 and S2). It will also be difficult to plantar flex and ankle will suddenly dorsiflex
Term
What casues tennis leg, what are the symptoms, and where is it found?
Definition
Caused by full extension of the knee and dorsiflexion of the ankle joint. Symptoms inlcude stabbing pain followed by edema and spasm of calf. Found in medial head of gastrocnemius.
Term
Which pathology can emulate a calcaneal problem, and is associated with pain and edema during prolonged exercise?
Definition
Accessory soleus
Term
What are the deep muscles of the posterior compartment and how do they act? What is the main nerve and artery of this compartment?
Definition
1.) popliteus contracts to assist the PCL; flexor digitorum longus flexes lateral four digits; flexor hallucis longus helps to push-off for walking, running or jumping; and tibialis posterior helps to flex ankle.
2.) main artery to foot is posterior tibial artery and main artery of posterior compartment of the leg is the fibular artery. The posterior tibial artery anastamoses with the circumflex fibular artery. The main nerve is the tibial nerve (S4-L3)
Term
A patient that presents with parasthesia, cramping and burning that is worse at night near the flexor retinaculum might have what?
Definition
tarsal tunnel syndrome
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