Posted by Amanda1 on August 12, 2013 at 08:21:22:
In Reply to: Re: Lower Limb T/F posted by Mona on August 11, 2013 at 18:58:09:
: Updated answers:
: Here is all of our guesses. Any feedback would be greatly appreciated.
: 13. Intragluteal injections can be safely given in the superior lateral quadrant of the gluteal region.
: True. If its superior medial quadrant, it can damage the superior gluteal nerve - Trendelenberg’s gait. GOOD
: 14. The adductor hiatus is a defect in the adductor magnus muscle.
: True. GOOD
: 15. The sural nerves arise in the popliteal fossa from the tibial and common fibular nerves.
: True. GOOD
: 16. The biceps femoris muscle forms the superior medial boundary of the popliteal fossa.
: False. It formes superior lateral boundary. The semitendinosus and membranous form the medial. GOOD
: 17. The soleus muscle contributes to flexion at the knee.
: False. Only flexion of the foot. AGREED. The gastrocnemius contributes to flexion at the knee.
: 18. The vascular supply to the anterior compartment of the leg is the deep fibular artery.
: False. Its anterior tibial artery. AGREED. The fibular artery supplies blood to lateral compartment.
: 19. The superficial fibular nerve provides cutaneous innervation to the skin between the great toe and second digit of the foot.
: True. False - The deep fibular nerve provides cutaneous inn to skin b/tw great toe and 2nd toe. The superficial fibular nerve does much of the remaining cutaneous inn to dorsum of the foot.
: 20. The transverse intermuscular septum separates the deep and superficial posterior compartments of the leg.
: True.
: 21. The flexor retinaculum of the foot holds the tendons of the anterior compartment of the leg in place at the ankle.
: False. The flexor retinaculum holds the posterior compartment together; while the extensor holds the anterior compartment together.
: 22. Fibularis longus tendon inserts on the 5th metatarsal bone.
: False. It inserts onto the 1st and 2nd metatarsal bone.
: 23. The deep plantar artery serves as an anastomotic connection between the dorsum and plantar surfaces of the foot.
: True! GOOD!!! and you want to try to see this artery in lab...
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: 24.Compression or injury to the tibial nerve may result in a condition known as “foot drop”.
: False. “Foot drop” is a gait abnormality in which the dropping of the forefoot happens due to weakness, damage to the peroneal nerve or paralysis of the muscles in the anterior portion of the lower leg. RIGHT! Foot drop is associated with loss of extension.
: 25.The weight-bearing points of the foot at the calcaneus and the heads of the 5 metatarsal bones.
: True? Yes - this is true. (To quote Dr. Evey - "Know what you know when you know it")
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: 26.The plantar arch passes superficial to the oblique head of the adductor hallucis muscle.
: False. From a planter view (sole view), the plantar arch is deep to the oblique. VERY GOOD.
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: 27.Sustentaculum tali is a bony projection of the calcaneus providing attachment for the spring ligament.
: True According to wiki but we don’t really understand it.
The key to the sustentaculum tali is that creates a pulley mechanism with the flexor hallucis longus tendon. As you flex and extend your foot, the FHL tendon slides along this projection. The fact that it is a projection of the calcaneus increases the surface area allowing more things to attach - namely the spring ligament.
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: 28.Flexion of the foot is a finer movement than extension of the foot.
: What does this mean?
Consider the number of muscles and tendons involved in each movement. Also, look at the insertions of the tendons.