Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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### Exercise 20 Review & Practice Sheet: Muscles of the Pectoral Girdle and Upper Limb

#### Part D: Label the muscles that move the anterior wrist and hand

The image illustrates a diagram of the muscles involved in wrist and hand movements. The muscles are labeled as follows:

1. **Biceps Brachii** - Located in the upper arm, this muscle assists in forearm flexion.
2. **Brachioradialis** - A muscle of the forearm that flexes the forearm at the elbow.
3. **Extensor Carpi Radialis Longus** - This muscle helps extend and abduct the wrist.
4. **Extensor Carpi Radialis Brevis** - Located next to the longus, it plays a role in wrist extension.
5. **Abductor Pollicis Longus** - Responsible for abducting the thumb.
6. **Flexor Pollicis Brevis** - Facilitates thumb flexion.
7. **Abductor Pollicis Brevis** - A muscle that abducts the thumb.

You are required to correctly identify these muscles on the diagram using the labels provided on the left side of the image. 

Note: Incorrect submissions are allowed up to 5 attempts.

#### Additional Instructions:
- Click "Submit" to check your answers.
- Use the "Help" button for assistance if needed.
- Use the "Reset" button to clear labels and start over.
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Transcribed Image Text:### Exercise 20 Review & Practice Sheet: Muscles of the Pectoral Girdle and Upper Limb #### Part D: Label the muscles that move the anterior wrist and hand The image illustrates a diagram of the muscles involved in wrist and hand movements. The muscles are labeled as follows: 1. **Biceps Brachii** - Located in the upper arm, this muscle assists in forearm flexion. 2. **Brachioradialis** - A muscle of the forearm that flexes the forearm at the elbow. 3. **Extensor Carpi Radialis Longus** - This muscle helps extend and abduct the wrist. 4. **Extensor Carpi Radialis Brevis** - Located next to the longus, it plays a role in wrist extension. 5. **Abductor Pollicis Longus** - Responsible for abducting the thumb. 6. **Flexor Pollicis Brevis** - Facilitates thumb flexion. 7. **Abductor Pollicis Brevis** - A muscle that abducts the thumb. You are required to correctly identify these muscles on the diagram using the labels provided on the left side of the image. Note: Incorrect submissions are allowed up to 5 attempts. #### Additional Instructions: - Click "Submit" to check your answers. - Use the "Help" button for assistance if needed. - Use the "Reset" button to clear labels and start over.
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