13. Posterior Leg (No OIAN) Flashcards

1
Q

What are the terminal branches of the posterior tibial artery?

A

Medial and Lateral plantar arteries

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2
Q

What bone is the origin of the flexor hallucis longus?

A

The fibula!

(despite attaching on the tibial side at the great toe, it originates on the fibula)

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3
Q

What separates the anterior and lateral compartments of the leg?

A

The anterior septum

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4
Q

What is the action of the popliteus muscle?

A

Laterally rotates the femur on a planted tibia to unlock the knee

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5
Q

What bone serves as the origin for the flexor digitorum longus?

A

Tibia

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6
Q

What is the probable function of the plantaris muscle?

A

Proprioception

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7
Q

Where are Tom Dick AN Harry located?

What structures are they?

A

Just behind the medial malleolus

Tibialis posterior

flexor Digitorum longus

posterior tibial Artery

tibial Nerve

flexor Hallucis longus

(anterior to posterior)

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8
Q

What rare small bone can fracture during total knee replacement, and where does it reside?

A

The fabella

In the lateral head of the gastrocnemius

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9
Q

What four muscles of the posterior leg act as dynamic support to the arch of the foot?

A

Tibialis anterior

Tibialis posterior

Fibularis longus

Flexor hallucis longus

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10
Q

In the posterior compartment, what muscle should you look under in order to find the fibular artery?

A

The flexor hallucis longus

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11
Q

Why might you want to palpate the tibial pulse?

A

To check for occlusive peripheral arterial disease

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12
Q

What tendon occupies the groove on the bottom of the sustentaculum tali of the calcaneus?

A

Tendon of the Flexor Hallucis Longus

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13
Q

What is the best method to palpate the tibial pulse?

A

Place your fingers on the posterior surface of the medial malleolus and instruct the patient to invert their foot.

(Inverting the foot relaxes the flexor retinaculum)

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14
Q

What two muscles of the posterior leg did Dr. Wright say are “especially useful” for maintaining the arches of the foot?

A

Tibialis posterior

Flexor hallucis longus

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15
Q

What muscles are involved in inversion of the foot?

A

Tibialis anterior and posterior

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16
Q

What separates the lateral and posterior compartments of the leg?

A

The posterior septum

17
Q

In the posterior compartment of the leg, what muscle should you look deep to in order to find the tibial nerve?

A

The soleus

18
Q

What two bones does the spring ligament run between?

A

Calcaneus

Navicular

(The other name is the Plantar Calcaneonavicular Ligament)

19
Q

How does the fibular artery terminate?

A

Runs through the interosseous membrane and anastomoses with the anterior lateral malleolar artery

20
Q

What separates the superficial and posterior deep compartments of the leg?

A

The transverse septum

21
Q

What two arteries are located in the posterior compartment of the leg?

Which one primarily provides blood supply to the posterior compartment of the leg?

A

Posterior tibial artery and fibular artery

Posterior tibial artery

22
Q

What small muscle has a long tendon which can be used in reconstructive surgery of the hand?

A

Plantaris