Lateral And Posterior Compartments Of The Leg
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How much do you know your body? This quiz provides a platform for you to actually know your leg and its compartments in a deeper way and not just the basics. Find out more below.
Questions and Answers
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1--Which ONE muscle out of the foIlowing has a tendon that is intracapsular? a) Plantaris. b) Popliteus. c) · Rectus femoris d) Psoas ma;or. e) Peroneus longus.
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B. BExplanation
The correct answer is b) Popliteus. The popliteus muscle has a tendon that is intracapsular, meaning it is located within the joint capsule of the knee. This muscle plays a role in unlocking the knee joint during the initial stages of knee flexion.Rate this question:
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- 2.
2-. the following muscles produce. plantar flexion of the foot (at the ankle joint) Except: a) Gastrocnemius. b) Plantaris. c) Tibialis posterior. d) Tibialis anterior.
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D. DExplanation
The correct answer is d) Tibialis anterior. The muscles listed in options a, b, and c (Gastrocnemius, Plantaris, and Tibialis posterior) are all involved in plantar flexion of the foot at the ankle joint. However, the Tibialis anterior muscle is responsible for dorsiflexion of the foot, not plantar flexion.Rate this question:
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- 3.
3-The muscle which unlocks the knee joint is: a) Rectus femoris. b) Poplitus. c) Pectineus. d) Adductor longus.
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B. BExplanation
The correct answer is b) Poplitus. The popliteus muscle is responsible for unlocking the knee joint by laterally rotating the femur on the tibia. It is a small muscle located at the back of the knee joint. When it contracts, it rotates the femur, allowing for flexion and extension of the knee joint.Rate this question:
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- 4.
4-The superficial peroneal nerve supplies: a) Peroneus longus. b) Peroneus brevis. c) Peroneus tertius.. d) A & B. e) B & C.
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D. DExplanation
The superficial peroneal nerve supplies the muscles Peroneus longus and Peroneus brevis. This is indicated by the correct answer choice "d" which states that the nerve supplies both muscles.Rate this question:
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- 5.
5-After a car accident a lady has "foot drop". Her foot hangs loosely in plantar flexion when she raises it off the ground. She can still invert her foot, but cannot evert it. She can flex but not extend her toes. Which nerve is most likely to have been crushed in her accident? a) common fibular b) tibial c) superficial fibular d) medial plantar e) sciatic
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B. BExplanation
After a car accident, the lady experiences "foot drop" which indicates a loss of dorsiflexion and an inability to extend the toes. This suggests damage to the nerve responsible for innervating the muscles involved in dorsiflexion and toe extension. The nerve most likely to have been crushed in her accident is the tibial nerve, as it supplies the muscles responsible for these actions.Rate this question:
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- 6.
6- In an accident,. a major artery is injured in the posterior leg of a man, .The sole of his foot is cold and pale. The dorsum of the foot is warm and normally colored. The artery that seems to be injured is the: a) Peroneal artery b) posterior tibial artery c) femoral artery d) popliteal artery e) medial plantar artery
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B. BExplanation
The correct answer is b) posterior tibial artery. In this scenario, the fact that the sole of the foot is cold and pale suggests that there is a lack of blood flow to that area. The posterior tibial artery is responsible for supplying blood to the posterior leg and the sole of the foot. Therefore, if this artery is injured, it would result in a decrease in blood flow to the foot, leading to the observed symptoms.Rate this question:
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- 7.
7-A patient complains of localized pain in a swollen lower calf and cannot strongly plantar flex his foot. What tendon may have ruptured? a) calcaneal b) peroneal tertius c) extensor digitorum longus d) extensor hallucis longus e) tibialis anterior
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A. AExplanation
The patient's symptoms of localized pain in a swollen lower calf and inability to strongly plantar flex the foot suggest a possible rupture of the calcaneal tendon. The calcaneal tendon, also known as the Achilles tendon, is responsible for plantar flexion of the foot. A rupture of this tendon can cause pain, swelling, and difficulty in performing movements such as plantar flexion. Therefore, option a) calcaneal tendon is the most likely tendon that may have ruptured in this case.Rate this question:
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- 8.
8-A tennis player feels a "pop" in her calf as she is playing. Her calf becomes tender and there is some slight amount of swelling. Upon examination, her physician informs her that she has ruptured the slender tendon of a small muscle that attaches to the calcaneus. She has apparently ruptured the: a) gastrocnemius b) plantaris c) popliteus d) soleus e) tibialis posterior
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B. BExplanation
The correct answer is b) plantaris. The description of the injury mentions a "pop" in the calf, which is a common symptom of a plantaris tendon rupture. The plantaris muscle is a small muscle that attaches to the calcaneus (heel bone) and its rupture can cause tenderness, swelling, and pain in the calf. The other options (gastrocnemius, popliteus, soleus, tibialis posterior) are not specifically mentioned in the description and do not fit the symptoms described.Rate this question:
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- 9.
9-A football player tears his calcaneal tendon. You would expect to find weakness in: a) dorsifiexion of the foot b) eversion of the foot c) extension of the knee d) inversion of the foot e) plantarflexion of the foot
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E. EExplanation
A tear in the calcaneal tendon, also known as the Achilles tendon, would result in weakness in plantarflexion of the foot. The calcaneal tendon is responsible for connecting the calf muscles to the heel bone and is essential for plantarflexion, which is the movement of pointing the foot downwards. Therefore, a tear in this tendon would weaken the ability to perform plantarflexion.Rate this question:
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- 10.
10-While on vacation in Florida following her final exams, a scuba diving medical student is accidentally speared by her diving partner. The end of the spear passes medial to lateral, posterior to the medial malleolus. It severs an artery there, which is the: a) anterior tibial b) dorsalis pedis c) fibular d) medial plantar e) posterior tibial
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E. EExplanation
The spear passes from the inside to the outside of the leg, behind the medial malleolus. This indicates that the artery that is severed is located on the inside of the leg, which is the posterior tibial artery. Therefore, the correct answer is e) posterior tibial.Rate this question:
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11-The nerve of the lateral leg compartment: a) Deep peroneal (fibular) b) Saphenous c) Superficial peroneal (fibular) d) Sural e) Tibial
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C. CExplanation
The correct answer is c) Superficial peroneal (fibular). The nerve of the lateral leg compartment refers to the nerves that innervate the muscles and skin of the lateral leg. The superficial peroneal nerve is responsible for innervating the muscles in this compartment, as well as providing sensory innervation to the skin on the lateral side of the leg and the dorsum of the foot.Rate this question:
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- 12.
12-A worker falls from a height and lands on his feet. Radiographs showed a fracture of the sustentaculum tali. The muscle passing immediately beneath itt would be affected is the: a) fibularis longus b) flexor digitorum longus c) flexor hallucis longus d) tibialis anterior e) tibialis posterior
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C. CExplanation
The sustentaculum tali is a bony prominence on the calcaneus bone that helps support the talus bone in the foot. The muscle passing immediately beneath it is the flexor hallucis longus. This muscle is responsible for flexing the big toe and helps to stabilize the arch of the foot. If the sustentaculum tali is fractured, it can affect the function of the flexor hallucis longus muscle and potentially lead to difficulties with toe flexion and foot stability.Rate this question:
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- 13.
13-A deep laceration, 2 cm in length, immediately posterior to the medial malleolus, may injure any of the following EXCEPT: a) peroneal artery b) tibial nerve c) tendon of tibialis posterior m. d) tendon of flexor digitorum longus m. e) tendon of flexor hallucis longus m.
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A. AExplanation
A deep laceration immediately posterior to the medial malleolus may injure the tibial nerve, tendon of tibialis posterior muscle, tendon of flexor digitorum longus muscle, and tendon of flexor hallucis longus muscle. However, it is unlikely to injure the peroneal artery, which is located on the lateral side of the leg.Rate this question:
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- 14.
14-The lateral plantar nerve is a branch of which nerve? a) Deep fibular b) Femoral c) Saphenous d) Sural e) Tibial
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E. EExplanation
The correct answer is e) Tibial. The lateral plantar nerve is a branch of the tibial nerve.Rate this question:
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- 15.
15-The fibula gives attachment to the following muscles , Except: a) Soleus. b) Biceps femoris.. c) Flexor hallucis longus. d) Flexor digitorum longus. e) Peroneus tertius.
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D. DExplanation
The fibula gives attachment to the muscles Soleus, Biceps femoris, Flexor hallucis longus, and Peroneus tertius. Therefore, the correct answer is d) Flexor digitorum longus, as it is the only muscle listed that does not attach to the fibula.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
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Jan 08, 2014Quiz Created by
Prof_Shefaa