Muscles of the Leg Worksheet
Explore the anatomy and function of the major muscles of the human leg with this Grade 9 science worksheet.
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Muscles of the Leg
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following muscles is primarily responsible for extending the leg at the knee joint?
Hamstrings
Quadriceps femoris
Gastrocnemius
Tibialis anterior
2. The calf muscle group, responsible for plantarflexion of the foot, is primarily composed of which two muscles?
Rectus femoris and vastus lateralis
Biceps femoris and semitendinosus
Gastrocnemius and soleus
Sartorius and gracilis
3. The muscle is located on the anterior (front) aspect of the thigh and is a powerful knee extensor.
4. The group of three muscles on the posterior (back) of the thigh, responsible for knee flexion and hip extension, are collectively known as the .
5. The Achilles tendon connects the muscles to the calcaneus (heel bone).
6. Describe the primary function of the tibialis anterior muscle and indicate its location.
7. The gluteus maximus is a muscle of the leg.
True
False
8. The sartorius is the longest muscle in the human body and crosses both the hip and knee joints.
True
False
Use the words below to complete the sentences.
9. Moving the leg away from the midline of the body is called .
10. Bending the knee joint is an example of .
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