Muscles-Backview Worksheet for 9th - 11th Grade | Lesson Planet - Free Printable

Since I can't view or access images directly, I can't see the specific diagram you're referring to. However, based on your description — "Label the Muscles of the Body" with a figure showing a human figure from the back, arms raised, and various muscle groups labeled with lines pointing to them — I can help you identify and label the major muscles typically shown in such diagrams.

Here’s a breakdown of the common muscles that would be labeled in a posterior (back) view of the human body, especially when arms are raised:

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1. Trapezius

- Location: Large, triangular muscle covering the upper back and neck.
- Function: Moves the shoulder blade, supports the head and neck.
- Labeling Tip: It spans from the base of the skull down to the mid-back and out to the shoulders.

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2. Deltoid (Posterior Fiber)

- Location: Shoulder region; the posterior part is visible when arms are raised.
- Function: Abducts and extends the arm.
- Note: The deltoid is often split into anterior, middle, and posterior fibers. The posterior portion is seen here.

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3. Latissimus Dorsi

- Location: Broad, flat muscle on the lower back, extending from the lower spine to the upper arm.
- Function: Adducts, extends, and rotates the arm.
- Labeling Tip: Often referred to as the “lats,” it's one of the largest muscles in the body.

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4. Erector Spinae

- Location: Along the spine, running vertically from the sacrum to the skull.
- Function: Extends and stabilizes the spine.
- Subdivisions: Includes iliocostalis, longissimus, and spinalis.

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5. Gluteus Maximus

- Location: Largest muscle in the buttocks.
- Function: Extends the hip and maintains upright posture.
- Labeling Tip: Prominent in the buttock area.

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6. Hamstrings (Biceps Femoris, Semitendinosus, Semimembranosus)

- Location: Back of the thigh.
- Function: Flex the knee and extend the hip.
- Labeling Tip: Often grouped together as the "hamstrings."

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7. Gastrocnemius

- Location: Calf muscle, superficial layer.
- Function: Plantarflexes the foot.
- Note: Often labeled along with the soleus (deep calf muscle).

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8. Soleus

- Location: Deep in the calf, beneath the gastrocnemius.
- Function: Also involved in plantarflexion.

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9. Triceps Brachii

- Location: Back of the upper arm.
- Function: Extends the elbow.
- Note: Likely visible if the arms are raised.

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10. Infraspinatus

- Location: On the back of the scapula (shoulder blade).
- Function: Rotates the arm outward (external rotation).
- Note: Part of the rotator cuff.

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11. Teres Minor

- Location: Below the infraspinatus, also on the scapula.
- Function: Assists in external rotation of the arm.

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12. Rhomboids (Major and Minor)

- Location: Between the spine and scapula.
- Function: Retract the shoulder blades.

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13. Levator Scapulae

- Location: Runs from the cervical spine to the top of the scapula.
- Function: Elevates the shoulder blade.

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14. Pectoralis Major (Anterior View Only)

- Note: If this image includes front views or partial front labeling, pectoralis major may appear.

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Common Labels You Might See:

From the image, the blank labels likely point to:
1. Trapezius
2. Deltoid (Posterior)
3. Latissimus Dorsi
4. Erector Spinae
5. Gluteus Maximus
6. Hamstrings
7. Gastrocnemius
8. Soleus
9. Triceps Brachii
10. Infraspinatus
11. Teres Minor
12. Rhomboids

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How to Label Correctly:

- Match each line to the correct muscle based on shape, location, and origin/insertion.
- Use anatomical terminology.
- Ensure the name matches the size and position of the muscle.

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If you can describe which parts are unlabeled or provide more details about the positions of the lines, I can give even more precise guidance!