1 2 3 Ethmoid Air Cells Frontal Sinus Maxillary Sinus Sphenoidal Sinus

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
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Please help fill out the following illustration 

The image shows a diagram of the human skull, highlighting the paranasal sinuses from both a frontal and lateral view. The sinuses are air-filled spaces that assist in humidifying the air we breathe, among other functions. The diagram labels four main sinus groups:

1. **Frontal Sinus (Label 1):** Located in the forehead above the eyes, visible in both the frontal and lateral views.
2. **Ethmoid Air Cells (Label 2):** These are a collection of small air cells between the nose and the eyes, evident in both views of the diagram.
3. **Maxillary Sinus (Label 3):** Situated in the cheek area, these are the largest sinuses and are depicted in both the frontal and lateral perspectives.
4. **Sphenoidal Sinus (Label 4):** Found deeper in the skull behind the ethmoid sinuses, shown in the lateral view.

These structures are illustrated in different shades to visualize their locations and are essential in the study of human anatomy, particularly for understanding sinus-related health issues.
Transcribed Image Text:The image shows a diagram of the human skull, highlighting the paranasal sinuses from both a frontal and lateral view. The sinuses are air-filled spaces that assist in humidifying the air we breathe, among other functions. The diagram labels four main sinus groups: 1. **Frontal Sinus (Label 1):** Located in the forehead above the eyes, visible in both the frontal and lateral views. 2. **Ethmoid Air Cells (Label 2):** These are a collection of small air cells between the nose and the eyes, evident in both views of the diagram. 3. **Maxillary Sinus (Label 3):** Situated in the cheek area, these are the largest sinuses and are depicted in both the frontal and lateral perspectives. 4. **Sphenoidal Sinus (Label 4):** Found deeper in the skull behind the ethmoid sinuses, shown in the lateral view. These structures are illustrated in different shades to visualize their locations and are essential in the study of human anatomy, particularly for understanding sinus-related health issues.
Expert Solution
Step 1

The figure contains the structure depicting the sinuses of the head typically known as the paranasal and nasal sinuses.

These are basically the air filled spaces on the cheeks, forehead and bridge of the nose. 

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