Identify each of the numbered structures

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Identify each of the numbered structures 

The image is a detailed anatomical model of the human skull, specifically focusing on the internal structures.

### Description:

1. **Annotations**:
   - **Blue Numbers**: The image contains blue numbered labels pointing to different parts.
     - **1**: Points to the dura mater, the tough outer membrane that covers the brain.
     - **2**: Points to the arachnoid mater, the middle meningeal layer.
     - **3**: Points to the pia mater, the innermost layer that directly covers the brain.

2. **Internal Structures**:
   - The brain's surface is depicted with detailed vascular structures visible beneath the membranes.
   - The cranial cavity is open, showing various components, possibly including nerves and blood vessels.

3. **Cranial Base**:
   - Visible with labeled sections, potentially indicating different cranial fossae or anatomical landmarks.

### Explanation:

This model is used for educational purposes to demonstrate the anatomy of the human skull and the layers that protect the brain. It is crucial for understanding the spatial relationships between different parts of the brain, meninges, and cranial bones.
Transcribed Image Text:The image is a detailed anatomical model of the human skull, specifically focusing on the internal structures. ### Description: 1. **Annotations**: - **Blue Numbers**: The image contains blue numbered labels pointing to different parts. - **1**: Points to the dura mater, the tough outer membrane that covers the brain. - **2**: Points to the arachnoid mater, the middle meningeal layer. - **3**: Points to the pia mater, the innermost layer that directly covers the brain. 2. **Internal Structures**: - The brain's surface is depicted with detailed vascular structures visible beneath the membranes. - The cranial cavity is open, showing various components, possibly including nerves and blood vessels. 3. **Cranial Base**: - Visible with labeled sections, potentially indicating different cranial fossae or anatomical landmarks. ### Explanation: This model is used for educational purposes to demonstrate the anatomy of the human skull and the layers that protect the brain. It is crucial for understanding the spatial relationships between different parts of the brain, meninges, and cranial bones.
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