Anatomy Quiz Lower Leg Muscles And Groups
The lower leg is the part of the lower limb that lies between the knee and the ankle. The leg from the knee to the ankle is called the crus. Do you know the muscles that exist in this part of the body? Test yourself by taking up this quiz.
- 1.
What are the medial head and lateral head origin of Gastrocnemius
- A.
Above medial & lateral condyle of femur
- B.
Below medial & lateral condyle of femur
- C.
Tibia & fibula
- D.
Femur
Correct Answer
A. Above medial & lateral condyle of femurExplanation
The correct answer is "above medial & lateral condyle of femur." The medial head and lateral head of the Gastrocnemius muscle originate from the area above the medial and lateral condyles of the femur bone. This means that the muscle attaches to the femur bone at this specific location.Rate this question:
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- 2.
What is the insertion of Gastrocnemius and soleus
- A.
Through calcaneal tendon to calcaneous
- B.
Calcaneus via calcaneal tendon
- C.
Posterior & medial tibial surfce
- D.
Navicular tuberosity
Correct Answer
B. Calcaneus via calcaneal tendonExplanation
The insertion of the Gastrocnemius and soleus muscles is through the calcaneal tendon to the calcaneus. The calcaneal tendon, also known as the Achilles tendon, is a strong fibrous band that connects the calf muscles to the heel bone (calcaneus). This insertion allows the muscles to exert force on the calcaneus, enabling movements such as plantar flexion of the foot.Rate this question:
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- 3.
What are the actions of gastrocnemius
- A.
Plantarflex foot
- B.
Plantarflex ankle knee flexion (when not weight bearing)
- C.
Dorsiflex foot
- D.
Flexes big toe
Correct Answer
B. Plantarflex ankle knee flexion (when not weight bearing)Explanation
The gastrocnemius muscle is responsible for plantarflexing the foot, which means it helps to point the foot downward. Additionally, it also assists in plantarflexing the ankle and flexing the knee when the leg is not bearing weight. It does not have any role in dorsiflexing the foot or flexing the big toe.Rate this question:
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- 4.
What is the origin of soleus
- A.
Posterior surface of upper fibula & tibia
- B.
Anterior surface of lower fibula & tibia
- C.
Lateral supracondylar ridge of femur
- D.
Interosseous membrane
Correct Answer
A. Posterior surface of upper fibula & tibiaExplanation
The soleus muscle originates from the posterior surface of the upper fibula and tibia. This means that it is attached to the back part of the upper bones of the leg.Rate this question:
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- 5.
What is the action of soleus
- A.
Plantarflex ankle
- B.
Flexes foot
- C.
Extends foot
- D.
Plantarflex foot
Correct Answer
D. Plantarflex footExplanation
The action of the soleus muscle is to plantarflex the foot. Plantarflexion refers to the movement of pointing the toes downward, as if pressing the gas pedal in a car. The soleus, along with the gastrocnemius muscle, is responsible for this action. When the soleus contracts, it helps to push the foot downward, allowing for movements such as walking, running, and jumping.Rate this question:
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- 6.
What is insertion of plantaris
- A.
Through calcaneal tendon to calcaneous
- B.
Lateral supracondylar ridge of femur
- C.
Plantar surface
- D.
Calcaneus via calcaneal tendon
Correct Answer
A. Through calcaneal tendon to calcaneousExplanation
The insertion of plantaris is through the calcaneal tendon to the calcaneus. This means that the plantaris muscle attaches to the heel bone (calcaneus) by inserting into the calcaneal tendon.Rate this question:
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- 7.
Origin of plantaris
- A.
Posterior surface of upper fibula & tibia
- B.
Lateral supracondylar ridge of femur
- C.
Lateral femoral condyle
- D.
Medial tibial surface
Correct Answer
B. Lateral supracondylar ridge of femurExplanation
The plantaris muscle originates from the lateral supracondylar ridge of the femur. This means that it starts from a bony ridge on the outer side of the lower end of the femur bone. This origin point is important for understanding the muscle's function and its role in movements of the leg and foot.Rate this question:
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- 8.
What is the plantaris compared to?
- A.
Like a strong gastrocnemius
- B.
Like a strong soleus
- C.
Like a weak gastrocnemius
- D.
Like a weak soleus
Correct Answer
C. Like a weak gastrocnemiusExplanation
The plantaris muscle is compared to a weak gastrocnemius because both muscles are located in the calf and play a role in plantar flexion of the foot. However, the gastrocnemius is a larger and stronger muscle compared to the plantaris.Rate this question:
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- 9.
What are NOT the actions of the popliteus?
- A.
Laterally rotates femur on tibia and unlocks knee
- B.
Medially rotates tibia on femur and unlocks knee
- C.
Assists in knee flexion
- D.
Helps unlock knee
- E.
Extends knee
Correct Answer
E. Extends kneeExplanation
The popliteus muscle is responsible for medially rotating the tibia on the femur and unlocking the knee, assisting in knee flexion, and helping to unlock the knee. It does not extend the knee.Rate this question:
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- 10.
What is the origin of popliteus
- A.
Lateral femoral condyle
- B.
Lateral supracondylar ridge of femur
- C.
Calcaneal
- D.
Interosseous membrane
Correct Answer
A. Lateral femoral condyleExplanation
The origin of the popliteus muscle is the lateral femoral condyle. This means that the muscle originates from the outer part of the rounded end of the femur bone. It does not originate from the supracondylar ridge, calcaneal, or interosseous membrane.Rate this question:
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- 11.
What is the insertion of popliteus
- A.
Posterior & medial tibial surface
- B.
Posterior surface of upper fibula & tibia
- C.
Interosseous membrane
- D.
Femur
Correct Answer
A. Posterior & medial tibial surfaceExplanation
The insertion of the popliteus muscle is on the posterior and medial tibial surface. This means that the muscle attaches to the back and inner side of the tibia bone. The popliteus muscle plays an important role in unlocking the knee joint by internally rotating the tibia. By inserting on the posterior and medial tibial surface, the popliteus muscle is able to effectively perform this function and aid in knee movement and stability.Rate this question:
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- 12.
What are the actions of tibialis posterior
- A.
Inversion plantarflexion of ankle
- B.
Eversion plantarflexion of ankle
- C.
Inversion dorsiflexion of foot
- D.
Eversion dorsiflexion of foot
Correct Answer
A. Inversion plantarflexion of ankleExplanation
The actions of tibialis posterior include inversion and plantarflexion of the ankle. Inversion refers to the movement of the foot towards the midline of the body, while plantarflexion refers to pointing the foot downward. Therefore, the correct answer is inversion plantarflexion of the ankle.Rate this question:
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- 13.
What is the insertion and origin of tibialilis posterior
- A.
Posterior tibia interosseous membrane fibula navicular tuberosity
- B.
Anterior tibia tibia interosseous membrane fibula
- C.
Posterior tibia distal phalanges 2-5 toes
- D.
Plantar surface tallus
Correct Answer
A. Posterior tibia interosseous membrane fibula navicular tuberosityExplanation
The correct answer is the insertion of the tibialis posterior muscle. The tibialis posterior muscle originates from the posterior tibia, interosseous membrane, and fibula. It inserts onto the navicular tuberosity.Rate this question:
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- 14.
What does the flexor digitorum longus do
- A.
Plantar flexion inversion flexes big toe
- B.
Flexes 2-5 toes dorsiflexion eversion
- C.
Flexes 2-5 toes inversion plantarflexion
Correct Answer
C. Flexes 2-5 toes inversion plantarflexionExplanation
The flexor digitorum longus is a muscle located in the lower leg. Its main function is to flex the second to fifth toes and to invert the foot. In other words, it helps to curl the toes downwards and turn the foot inward. This muscle is important for controlling movements of the toes and maintaining stability and balance while walking or running.Rate this question:
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- 15.
Where is flexor digitorum longus located
- A.
Posterior surface of tibia plantar surface bases 2-5 distal phalanges
- B.
Anterior surface of fibula plantar surface base hallux
- C.
Plantar surface bases 2-5 distal phalanges posterior fibula
- D.
Fibula plantar surface of distal phalanx of great toe
Correct Answer
A. Posterior surface of tibia plantar surface bases 2-5 distal phalangesExplanation
The flexor digitorum longus is located on the posterior surface of the tibia and it inserts onto the plantar surface of the bases of the 2nd to 5th distal phalanges. This means that the muscle starts on the back of the shin bone (tibia) and its tendon extends to the bottom surface of the toes (phalanges) in the middle and ring fingers.Rate this question:
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- 16.
What's the origin of flexor hallucis longus
- A.
Tibia
- B.
Femur
- C.
Tallus
- D.
Fibula
Correct Answer
D. FibulaExplanation
The flexor hallucis longus originates from the fibula.Rate this question:
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- 17.
Insertion of flexor hallucis longus
- A.
Plantar surface of base of 2-5 distal phalanges
- B.
Plantar surface of distal phalanx of great toe
- C.
Tibia
- D.
Calcaneous tendon
Correct Answer
B. Plantar surface of distal phalanx of great toeExplanation
The correct answer is the plantar surface of the distal phalanx of the great toe. This is because the flexor hallucis longus muscle is responsible for flexing the great toe. It originates from the posterior surface of the fibula and inserts onto the plantar surface of the distal phalanx of the great toe. This allows for the movement of flexion in the great toe.Rate this question:
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- 18.
What are NOT the actions of flexor hallucis longus
- A.
Flexes big toe (hallux)
- B.
Plantarflexion of foot
- C.
Inverts foot
- D.
Dorsiflex
Correct Answer
D. DorsiflexExplanation
The actions of the flexor hallucis longus include flexing the big toe (hallux), plantarflexion of the foot, and inverting the foot. However, dorsiflexion is not one of the actions of the flexor hallucis longus. Dorsiflexion refers to the movement of lifting the foot upwards towards the shin, and this is not a function of the flexor hallucis longus.Rate this question:
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