Superficial muscles, anterior view - a detailed anatomical illustration showing the major muscles of the human body from the front, labeled for educational purposes.
Diagram of superficial muscles of the human body, anterior view, with numbered labels pointing to various muscle groups for identification.
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Show Answer Key & Explanations
Step-by-step solution for: Label Muscles Worksheet | Human muscle anatomy, Human body ...
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Show Answer Key & Explanations
Step-by-step solution for: Label Muscles Worksheet | Human muscle anatomy, Human body ...
The image provided is a diagram of the superficial muscles of the human body (anterior view). The task is to identify and label each muscle based on the numbered points in the diagram. Below is the solution with explanations for each labeled muscle:
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1. Frontalis Muscle
- Location: Forehead region.
- Function: Elevates the eyebrows and wrinkles the forehead.
2. Orbicularis Oculi Muscle
- Location: Surrounds the eyes.
- Function: Closes the eyelids and helps in blinking.
3. Nasalis Muscle
- Location: Near the nose.
- Function: Compresses the nostrils and flares the nose.
4. Zygomaticus Major Muscle
- Location: Cheek area, extending from the zygomatic bone to the corner of the mouth.
- Function: Pulls the corner of the mouth upward, aiding in smiling.
5. Masseter Muscle
- Location: Jawline, near the cheekbone.
- Function: Closes the jaw and assists in chewing.
6. Mandibularis Muscle
- Location: Along the lower jaw.
- Function: Assists in closing the jaw and chewing.
7. Sternocleidomastoid Muscle
- Location: Neck, running from the sternum and clavicle to the skull.
- Function: Rotates and flexes the head.
8. Pectoralis Major Muscle
- Location: Chest, covering much of the anterior thoracic wall.
- Function: Adducts and flexes the arm; assists in breathing.
9. Deltoid Muscle
- Location: Shoulder, forming the rounded contour of the shoulder.
- Function: Abducts the arm and assists in flexion and extension.
10. Biceps Brachii Muscle
- Location: Front of the upper arm.
- Function: Flexes the elbow and supinates the forearm.
11. Brachialis Muscle
- Location: Underneath the biceps brachii, at the front of the upper arm.
- Function: Primarily flexes the elbow.
12. Rectus Abdominis Muscle
- Location: Anterior abdominal wall, running vertically.
- Function: Flexes the trunk and compresses the abdomen.
13. External Oblique Muscle
- Location: Flanks of the abdomen, superficial to the internal oblique.
- Function: Assists in rotation and lateral flexion of the trunk.
14. Triceps Brachii Muscle
- Location: Back of the upper arm.
- Function: Extends the elbow and stabilizes the shoulder joint.
15. Latissimus Dorsi Muscle
- Location: Broad, flat muscle of the back, extending from the lumbar spine to the humerus.
- Function: Extends, adducts, and medially rotates the arm.
16. Teres Major Muscle
- Location: Posterior shoulder, inferior to the deltoid.
- Function: Medially rotates and adducts the arm.
17. Coracobrachialis Muscle
- Location: Upper arm, originating from the coracoid process.
- Function: Assists in flexing and adducting the arm.
18. Brachioradialis Muscle
- Location: Forearm, originating from the humerus and inserting into the radius.
- Function: Flexes the forearm at the elbow.
19. Flexor Carpi Radialis Muscle
- Location: Forearm, flexes the wrist toward the radial side.
- Function: Flexes and abducts the wrist.
20. Quadriceps Femoris Muscle
- Location: Front of the thigh.
- Function: Extends the knee and stabilizes the patella.
21. Sartorius Muscle
- Location: Long, thin muscle running diagonally across the thigh.
- Function: Flexes and laterally rotates the hip; flexes the knee.
22. Gracilis Muscle
- Location: Inner thigh, one of the adductor muscles.
- Function: Adducts and medially rotates the thigh.
23. Adductor Longus Muscle
- Location: Inner thigh, part of the adductor group.
- Function: Adducts and medially rotates the thigh.
24. Gastrocnemius Muscle
- Location: Posterior calf, forming the bulk of the calf muscle.
- Function: Plantarflexes the ankle and flexes the knee.
25. Soleus Muscle
- Location: Posterior calf, deep to the gastrocnemius.
- Function: Plantarflexes the ankle.
26. Tibialis Anterior Muscle
- Location: Anterior shin.
- Function: Dorsiflexes the ankle and inverts the foot.
27. Extensor Digitorum Longus Muscle
- Location: Anterior shin, extending down to the toes.
- Function: Extends the toes and dorsiflexes the ankle.
---
\[
\boxed{
\begin{array}{ll}
1. & \text{Frontalis Muscle} \\
2. & \text{Orbicularis Oculi Muscle} \\
3. & \text{Nasalis Muscle} \\
4. & \text{Zygomaticus Major Muscle} \\
5. & \text{Masseter Muscle} \\
6. & \text{Mandibularis Muscle} \\
7. & \text{Sternocleidomastoid Muscle} \\
8. & \text{Pectoralis Major Muscle} \\
9. & \text{Deltoid Muscle} \\
10. & \text{Biceps Brachii Muscle} \\
11. & \text{Brachialis Muscle} \\
12. & \text{Rectus Abdominis Muscle} \\
13. & \text{External Oblique Muscle} \\
14. & \text{Triceps Brachii Muscle} \\
15. & \text{Latissimus Dorsi Muscle} \\
16. & \text{Teres Major Muscle} \\
17. & \text{Coracobrachialis Muscle} \\
18. & \text{Brachioradialis Muscle} \\
19. & \text{Flexor Carpi Radialis Muscle} \\
20. & \text{Quadriceps Femoris Muscle} \\
21. & \text{Sartorius Muscle} \\
22. & \text{Gracilis Muscle} \\
23. & \text{Adductor Longus Muscle} \\
24. & \text{Gastrocnemius Muscle} \\
25. & \text{Soleus Muscle} \\
26. & \text{Tibialis Anterior Muscle} \\
27. & \text{Extensor Digitorum Longus Muscle} \\
\end{array}
}
\]
This completes the labeling of the superficial muscles in the anterior view of the human body. Each muscle has been identified based on its anatomical location and function.
---
Solution:
1. Frontalis Muscle
- Location: Forehead region.
- Function: Elevates the eyebrows and wrinkles the forehead.
2. Orbicularis Oculi Muscle
- Location: Surrounds the eyes.
- Function: Closes the eyelids and helps in blinking.
3. Nasalis Muscle
- Location: Near the nose.
- Function: Compresses the nostrils and flares the nose.
4. Zygomaticus Major Muscle
- Location: Cheek area, extending from the zygomatic bone to the corner of the mouth.
- Function: Pulls the corner of the mouth upward, aiding in smiling.
5. Masseter Muscle
- Location: Jawline, near the cheekbone.
- Function: Closes the jaw and assists in chewing.
6. Mandibularis Muscle
- Location: Along the lower jaw.
- Function: Assists in closing the jaw and chewing.
7. Sternocleidomastoid Muscle
- Location: Neck, running from the sternum and clavicle to the skull.
- Function: Rotates and flexes the head.
8. Pectoralis Major Muscle
- Location: Chest, covering much of the anterior thoracic wall.
- Function: Adducts and flexes the arm; assists in breathing.
9. Deltoid Muscle
- Location: Shoulder, forming the rounded contour of the shoulder.
- Function: Abducts the arm and assists in flexion and extension.
10. Biceps Brachii Muscle
- Location: Front of the upper arm.
- Function: Flexes the elbow and supinates the forearm.
11. Brachialis Muscle
- Location: Underneath the biceps brachii, at the front of the upper arm.
- Function: Primarily flexes the elbow.
12. Rectus Abdominis Muscle
- Location: Anterior abdominal wall, running vertically.
- Function: Flexes the trunk and compresses the abdomen.
13. External Oblique Muscle
- Location: Flanks of the abdomen, superficial to the internal oblique.
- Function: Assists in rotation and lateral flexion of the trunk.
14. Triceps Brachii Muscle
- Location: Back of the upper arm.
- Function: Extends the elbow and stabilizes the shoulder joint.
15. Latissimus Dorsi Muscle
- Location: Broad, flat muscle of the back, extending from the lumbar spine to the humerus.
- Function: Extends, adducts, and medially rotates the arm.
16. Teres Major Muscle
- Location: Posterior shoulder, inferior to the deltoid.
- Function: Medially rotates and adducts the arm.
17. Coracobrachialis Muscle
- Location: Upper arm, originating from the coracoid process.
- Function: Assists in flexing and adducting the arm.
18. Brachioradialis Muscle
- Location: Forearm, originating from the humerus and inserting into the radius.
- Function: Flexes the forearm at the elbow.
19. Flexor Carpi Radialis Muscle
- Location: Forearm, flexes the wrist toward the radial side.
- Function: Flexes and abducts the wrist.
20. Quadriceps Femoris Muscle
- Location: Front of the thigh.
- Function: Extends the knee and stabilizes the patella.
21. Sartorius Muscle
- Location: Long, thin muscle running diagonally across the thigh.
- Function: Flexes and laterally rotates the hip; flexes the knee.
22. Gracilis Muscle
- Location: Inner thigh, one of the adductor muscles.
- Function: Adducts and medially rotates the thigh.
23. Adductor Longus Muscle
- Location: Inner thigh, part of the adductor group.
- Function: Adducts and medially rotates the thigh.
24. Gastrocnemius Muscle
- Location: Posterior calf, forming the bulk of the calf muscle.
- Function: Plantarflexes the ankle and flexes the knee.
25. Soleus Muscle
- Location: Posterior calf, deep to the gastrocnemius.
- Function: Plantarflexes the ankle.
26. Tibialis Anterior Muscle
- Location: Anterior shin.
- Function: Dorsiflexes the ankle and inverts the foot.
27. Extensor Digitorum Longus Muscle
- Location: Anterior shin, extending down to the toes.
- Function: Extends the toes and dorsiflexes the ankle.
---
Final Answer:
\[
\boxed{
\begin{array}{ll}
1. & \text{Frontalis Muscle} \\
2. & \text{Orbicularis Oculi Muscle} \\
3. & \text{Nasalis Muscle} \\
4. & \text{Zygomaticus Major Muscle} \\
5. & \text{Masseter Muscle} \\
6. & \text{Mandibularis Muscle} \\
7. & \text{Sternocleidomastoid Muscle} \\
8. & \text{Pectoralis Major Muscle} \\
9. & \text{Deltoid Muscle} \\
10. & \text{Biceps Brachii Muscle} \\
11. & \text{Brachialis Muscle} \\
12. & \text{Rectus Abdominis Muscle} \\
13. & \text{External Oblique Muscle} \\
14. & \text{Triceps Brachii Muscle} \\
15. & \text{Latissimus Dorsi Muscle} \\
16. & \text{Teres Major Muscle} \\
17. & \text{Coracobrachialis Muscle} \\
18. & \text{Brachioradialis Muscle} \\
19. & \text{Flexor Carpi Radialis Muscle} \\
20. & \text{Quadriceps Femoris Muscle} \\
21. & \text{Sartorius Muscle} \\
22. & \text{Gracilis Muscle} \\
23. & \text{Adductor Longus Muscle} \\
24. & \text{Gastrocnemius Muscle} \\
25. & \text{Soleus Muscle} \\
26. & \text{Tibialis Anterior Muscle} \\
27. & \text{Extensor Digitorum Longus Muscle} \\
\end{array}
}
\]
This completes the labeling of the superficial muscles in the anterior view of the human body. Each muscle has been identified based on its anatomical location and function.
Parent Tip: Review the logic above to help your child master the concept of major muscles worksheet.
