Muscles Worksheet showing a detailed human anatomy diagram with blank labels for educational purposes.
Diagram of human muscles with labeled lines pointing to various muscle groups on a full-body illustration.
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Step-by-step solution for: Free Printable Muscular System Worksheet Collection
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Show Answer Key & Explanations
Step-by-step solution for: Free Printable Muscular System Worksheet Collection
This is a Muscles Worksheet designed to help students learn and identify major muscles in the human body. The diagram shows the anterior (front) view of the human muscular system, with labeled lines pointing to various muscle groups. The task is to fill in the blank boxes with the correct names of the muscles.
Let’s go step by step and identify each muscle based on its location:
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1. Top center (forehead) – *Frontalis*
→ Controls forehead movements and raises eyebrows.
2. Right side of head (temple area) – *Temporalis*
→ Helps close the jaw.
3. Below the eye, cheek area – *Zygomaticus major*
→ Pulls the corner of the mouth upward (smiling).
4. Under the chin – *Platysma*
→ Flattens the neck and pulls down the corners of the mouth.
5. Lower jaw/neck – *Masseter*
→ Powerful chewing muscle.
6. Neck (side) – *Sternocleidomastoid*
→ Turns and flexes the head.
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7. Shoulder (top of shoulder) – *Deltoid*
→ Abducts the arm at the shoulder.
8. Chest (large pectoral muscle) – *Pectoralis major*
→ Adducts and flexes the arm.
9. Side of chest (under arm) – *External oblique*
→ Part of the abdominal wall; rotates and bends the trunk.
10. Center of abdomen (rectangular shape) – *Rectus abdominis*
→ "Six-pack" muscle; flexes the spine.
11. Back of upper arm – *Triceps brachii*
→ Extends the forearm.
12. Front of upper arm – *Biceps brachii*
→ Flexes the forearm.
13. Inner arm (flexor region) – *Brachialis* or *Flexor carpi radialis*
→ But more likely *Brachialis* since it's under biceps.
14. Outer forearm (extensor) – *Extensor digitorum* or *Extensor carpi radialis*
→ Likely *Extensor carpi radialis longus*.
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15. Thigh (front) – *Quadriceps femoris*
→ Group of four muscles that extend the knee.
16. Thigh (back) – *Hamstring group* (e.g., *Biceps femoris*, *Semitendinosus*, *Semimembranosus*)
→ Flex the knee and extend the hip.
17. Outer thigh – *Adductor magnus*
→ Adducts the thigh.
18. Calf (rear leg) – *Gastrocnemius*
→ Plantar flexes the foot (main calf muscle).
19. Below gastrocnemius (deep calf) – *Soleus*
→ Also helps plantar flex the foot.
20. Shin (front of lower leg) – *Tibialis anterior*
→ Dorsiflexes the foot.
21. Outer lower leg – *Fibularis longus* or *Peroneus longus*
→ Everts the foot.
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From top to bottom, left to right:
1. Frontalis
2. Temporalis
3. Zygomaticus major
4. Platysma
5. Masseter
6. Sternocleidomastoid
7. Deltoid
8. Pectoralis major
9. External oblique
10. Rectus abdominis
11. Triceps brachii
12. Biceps brachii
13. Brachialis
14. Extensor carpi radialis longus
15. Quadriceps femoris
16. Hamstrings
17. Adductor magnus
18. Gastrocnemius
19. Soleus
20. Tibialis anterior
21. Fibularis longus
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This worksheet teaches anatomy of major skeletal muscles. Students must label key muscles involved in movement, posture, and facial expressions. It’s essential for understanding human physiology and fitness training.
If you're using this for study, remember:
- Use flashcards.
- Practice drawing the muscles.
- Know their functions (origin, insertion, action).
Let me know if you'd like a printable version or quiz!
Let’s go step by step and identify each muscle based on its location:
---
Head & Neck:
1. Top center (forehead) – *Frontalis*
→ Controls forehead movements and raises eyebrows.
2. Right side of head (temple area) – *Temporalis*
→ Helps close the jaw.
3. Below the eye, cheek area – *Zygomaticus major*
→ Pulls the corner of the mouth upward (smiling).
4. Under the chin – *Platysma*
→ Flattens the neck and pulls down the corners of the mouth.
5. Lower jaw/neck – *Masseter*
→ Powerful chewing muscle.
6. Neck (side) – *Sternocleidomastoid*
→ Turns and flexes the head.
---
Upper Body:
7. Shoulder (top of shoulder) – *Deltoid*
→ Abducts the arm at the shoulder.
8. Chest (large pectoral muscle) – *Pectoralis major*
→ Adducts and flexes the arm.
9. Side of chest (under arm) – *External oblique*
→ Part of the abdominal wall; rotates and bends the trunk.
10. Center of abdomen (rectangular shape) – *Rectus abdominis*
→ "Six-pack" muscle; flexes the spine.
11. Back of upper arm – *Triceps brachii*
→ Extends the forearm.
12. Front of upper arm – *Biceps brachii*
→ Flexes the forearm.
13. Inner arm (flexor region) – *Brachialis* or *Flexor carpi radialis*
→ But more likely *Brachialis* since it's under biceps.
14. Outer forearm (extensor) – *Extensor digitorum* or *Extensor carpi radialis*
→ Likely *Extensor carpi radialis longus*.
---
Lower Body:
15. Thigh (front) – *Quadriceps femoris*
→ Group of four muscles that extend the knee.
16. Thigh (back) – *Hamstring group* (e.g., *Biceps femoris*, *Semitendinosus*, *Semimembranosus*)
→ Flex the knee and extend the hip.
17. Outer thigh – *Adductor magnus*
→ Adducts the thigh.
18. Calf (rear leg) – *Gastrocnemius*
→ Plantar flexes the foot (main calf muscle).
19. Below gastrocnemius (deep calf) – *Soleus*
→ Also helps plantar flex the foot.
20. Shin (front of lower leg) – *Tibialis anterior*
→ Dorsiflexes the foot.
21. Outer lower leg – *Fibularis longus* or *Peroneus longus*
→ Everts the foot.
---
Final Answer (Fill-in-the-blanks):
From top to bottom, left to right:
1. Frontalis
2. Temporalis
3. Zygomaticus major
4. Platysma
5. Masseter
6. Sternocleidomastoid
7. Deltoid
8. Pectoralis major
9. External oblique
10. Rectus abdominis
11. Triceps brachii
12. Biceps brachii
13. Brachialis
14. Extensor carpi radialis longus
15. Quadriceps femoris
16. Hamstrings
17. Adductor magnus
18. Gastrocnemius
19. Soleus
20. Tibialis anterior
21. Fibularis longus
---
✔ Summary:
This worksheet teaches anatomy of major skeletal muscles. Students must label key muscles involved in movement, posture, and facial expressions. It’s essential for understanding human physiology and fitness training.
If you're using this for study, remember:
- Use flashcards.
- Practice drawing the muscles.
- Know their functions (origin, insertion, action).
Let me know if you'd like a printable version or quiz!
Parent Tip: Review the logic above to help your child master the concept of how the body works the muscles worksheet answers.
![Human muscular system - Stock Illustration [75976192] - PIXTA](/images2/how-the-body-works-the-muscles-worksheet-answers/how-the-body-works-the-muscles-worksheet-answers-7.jpg)