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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Blood Vessels

1. Fill in the characteristics you’ve learned from lecture and text. These images are obtained from the Jaydoc Histoweb site. [Jaydoc Histoweb](http://www.kumc.edu/instruction/medicine/anatomy/histoweb/histoweb.htm)

| Micrograph (varying magnifications) | Type      | Histological features | Physiological (functional) features |
|-------------------------------------|-----------|-----------------------|------------------------------------|
| ![Artery](image-url)                | Artery    |                       |                                    |
| ![Arteriole](image-url)             | Arteriole |                       |                                    |
| ![Capillary](image-url)             | Capillary |                       |                                    |
| ![Venule](image-url)                | Venule    |                       |                                    |
| ![Vein](image-url)                  | Vein      |                       |                                    |

### Explanation of Images:

1. **Artery**: The micrograph displays a thick-walled structure, characteristic of arteries, showing multiple layers indicative of the tunica media made primarily of smooth muscle and elastin fibers.

2. **Arteriole**: This image shows a smaller version of an artery, with a proportionally thicker muscular wall. Arterioles are key in regulating blood flow and pressure.

3. **Capillary**: The capillary micrograph reveals thin walls consisting primarily of a single layer of endothelial cells, allowing for efficient exchange of gases and nutrients.

4. **Venule**: The image of the venule contains a thinner wall compared to arteries and fewer smooth muscle layers, showing its role in returning blood to the heart.

5. **Vein**: Featured is a structure with a relatively large lumen and thinner walls compared to arteries, displaying valves and less elastic tissue, accommodating their function of carrying blood back to the heart under low pressure.
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Transcribed Image Text:Blood Vessels 1. Fill in the characteristics you’ve learned from lecture and text. These images are obtained from the Jaydoc Histoweb site. [Jaydoc Histoweb](http://www.kumc.edu/instruction/medicine/anatomy/histoweb/histoweb.htm) | Micrograph (varying magnifications) | Type | Histological features | Physiological (functional) features | |-------------------------------------|-----------|-----------------------|------------------------------------| | ![Artery](image-url) | Artery | | | | ![Arteriole](image-url) | Arteriole | | | | ![Capillary](image-url) | Capillary | | | | ![Venule](image-url) | Venule | | | | ![Vein](image-url) | Vein | | | ### Explanation of Images: 1. **Artery**: The micrograph displays a thick-walled structure, characteristic of arteries, showing multiple layers indicative of the tunica media made primarily of smooth muscle and elastin fibers. 2. **Arteriole**: This image shows a smaller version of an artery, with a proportionally thicker muscular wall. Arterioles are key in regulating blood flow and pressure. 3. **Capillary**: The capillary micrograph reveals thin walls consisting primarily of a single layer of endothelial cells, allowing for efficient exchange of gases and nutrients. 4. **Venule**: The image of the venule contains a thinner wall compared to arteries and fewer smooth muscle layers, showing its role in returning blood to the heart. 5. **Vein**: Featured is a structure with a relatively large lumen and thinner walls compared to arteries, displaying valves and less elastic tissue, accommodating their function of carrying blood back to the heart under low pressure.
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