REASONING OUT QUESTIONS
- Superficial peroneal nerve is called 'Nervus Hesitant'.
- Deep peroneal nerve is also called 'Musculocutaneous nerve of leg'.
- Innervation of Medial margin of dorsum of foot is by Saphenous Lateral margin is by Sural nerve and most of the Dorsum of the foot is by superficial peroneal nerve except first interdigital cleft (cleft between first and second digit) which is by Deep peroneal nerve.
- Popliteal artery is more prone for aneurysms and is most difficult peripheral arterial pulse to be felt.
- Dorsalis pedis artery is the direct continuation of anterior tibial artery and end by anastomosing with Medial Plantar artery and its pulsations are absent in case of Thrombangitis obliterans (TAO).
- Dislocation of patella is more common laterally than medially.
- Soleus muscle is called Peripheral heart because it helps in pumping venous flow from superficial veins to deep veins and increases venous return from lower limb.
- Saphenous opening is 2.5cm below and medial to pubic tubercle and is closed by cribriform fascia.
- Profunda femoris artery is the chief artery of all three compartments of thigh.
- Gracilis is used as a graft for cosmetic surgeries and muscle flaps because of its high vascular supply.
REASONING OUT ANSWERS
1) False.
Deep Peroneal Nerve hesitates to cross the anterior tibial artery from lateral to medical and lies lateral to the artery in the lower part of the leg, hence called Nervus Hesitant.
1) False.
Deep Peroneal Nerve hesitates to cross the anterior tibial artery from lateral to medical and lies lateral to the artery in the lower part of the leg, hence called Nervus Hesitant.
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2) False.
Superficial peroneal nerve supplies muscles of lateral compartment (Peroneus longus and peroneus brevis) of leg, become cutaneous and innervate most of dorsum of foot and medial margin of great toe, hence called Musculocutaneous nerve of Leg.
Superficial peroneal nerve supplies muscles of lateral compartment (Peroneus longus and peroneus brevis) of leg, become cutaneous and innervate most of dorsum of foot and medial margin of great toe, hence called Musculocutaneous nerve of Leg.
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3) True.
Sensory innervation of Dorsum of foot is by below 4 set of nerves.
Sensory innervation of Dorsum of foot is by below 4 set of nerves.
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4) True.
To feel popliteal artery pulsation, patient should flex the knee to relax popliteal fascia and examiner thumb should rest on patella and pulse is felt with the tip of fingers.
To feel popliteal artery pulsation, patient should flex the knee to relax popliteal fascia and examiner thumb should rest on patella and pulse is felt with the tip of fingers.
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- LOWER LIMB (R & Q) Picture 4.1.png (181.52 KiB) Viewed 260 times
5) False.
Dorsalis pedis artery is the direct continuation of anterior tibial artery and end by anastomosing with Lateral Plantar artery and its pulsations are absent in case of Thrombangitis obliterans (TAO) / Buerger Disease.
Dorsalis pedis artery is the direct continuation of anterior tibial artery and end by anastomosing with Lateral Plantar artery and its pulsations are absent in case of Thrombangitis obliterans (TAO) / Buerger Disease.
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- LOWER LIMB (R & Q) Picture 5.1.png (202.25 KiB) Viewed 259 times
6) True.
Patella dislocates laterally because of the upward and lateral pull by quadriceps tendon.
However it is countered by:
Patella dislocates laterally because of the upward and lateral pull by quadriceps tendon.
However it is countered by:
- More forward projection of lateral femoral condyles
- Prolonged insertion of vastus medialis than vastus lateralis.
- Medial pull exerted by medial patellar retinaculum.
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- LOWER LIMB (R & Q) Picture 6.1.png (81.35 KiB) Viewed 258 times
7)True.
Soleus contains large venous sinuses called soleal sinuses which communicates superficial veins by perforating veins with the deep veins, thus contraction helps in sucking the blood from superficial veins and propelling it into deep veins.
Soleus contains large venous sinuses called soleal sinuses which communicates superficial veins by perforating veins with the deep veins, thus contraction helps in sucking the blood from superficial veins and propelling it into deep veins.
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8) False.
Saphenous opening is 2.5cm below and lateral to pubic tubercle and is closed by cribriform fascia.
Saphenous opening is 2.5cm below and lateral to pubic tubercle and is closed by cribriform fascia.
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9)True.
Profunda femoris artery (Deep femoral artery) is the major arterial supply to muscles of all three compartments of thigh.
Profunda femoris artery (Deep femoral artery) is the major arterial supply to muscles of all three compartments of thigh.
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10) Gracilis is used as a graft for cosmetic surgeries and muscle flaps because of its high vascular supply.
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- LOWER LIMB (R & Q) Picture 10.2.png (282.41 KiB) Viewed 255 times