A)Identify the bone seen here. B)What do arrows A and B point to? B

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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**Title: Identification of the Scapula and Its Key Anatomical Features**

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**A) Identify the bone seen here.**

The bone shown in the image is the scapula, also known as the shoulder blade.

**B) What do arrows A and B point to?**

- Arrow **A**: Points to the **spine of the scapula**. This is a prominent ridge of bone that runs across the posterior surface of the scapula. It serves as an attachment point for muscles such as the trapezius and deltoid.
  
- Arrow **B**: Points to the **acromion**. The acromion is an extension of the scapular spine that forms the highest point of the shoulder. It articulates with the clavicle to form the acromioclavicular joint and serves as an attachment point for muscles.

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In the image provided, we observe the posterior view of the scapula, highlighting the spine and the acromion. Understanding these features is essential for comprehending shoulder mechanics and identifying sites of muscle attachment crucial for upper limb movement.
Transcribed Image Text:**Title: Identification of the Scapula and Its Key Anatomical Features** --- **A) Identify the bone seen here.** The bone shown in the image is the scapula, also known as the shoulder blade. **B) What do arrows A and B point to?** - Arrow **A**: Points to the **spine of the scapula**. This is a prominent ridge of bone that runs across the posterior surface of the scapula. It serves as an attachment point for muscles such as the trapezius and deltoid. - Arrow **B**: Points to the **acromion**. The acromion is an extension of the scapular spine that forms the highest point of the shoulder. It articulates with the clavicle to form the acromioclavicular joint and serves as an attachment point for muscles. --- In the image provided, we observe the posterior view of the scapula, highlighting the spine and the acromion. Understanding these features is essential for comprehending shoulder mechanics and identifying sites of muscle attachment crucial for upper limb movement.
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