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Label the three major layers of the vessel walls on the following histological slide.

Label the three major layers of the vessel walls on the following histological slide.

Human Anatomy & Physiology (11th Edition)
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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. Label the three major layers of the vessel walls on the following histological slide.

 

This image is a histological cross-section of an artery. It shows three distinct layers typical of arterial walls: 1. **Tunica Intima**: The innermost layer, appearing as a thin, lighter-stained area lining the lumen, which is the central opening through which blood flows. 2. **Tunica Media**: The middle layer, composed predominantly of smooth muscle cells, is seen as a thicker pink region. This layer allows the artery to constrict and dilate, regulating blood pressure and flow. 3. **Tunica Externa (or Adventitia)**: The outermost layer, consisting of connective tissue, appears as a less defined, paler area surrounding the tunica media. It provides structural support and elasticity. These layers are key to the function of arteries in maintaining proper blood circulation throughout the body. The image is from Pearson Education, Inc., 2018.
Transcribed Image Text:This image is a histological cross-section of an artery. It shows three distinct layers typical of arterial walls: 1. **Tunica Intima**: The innermost layer, appearing as a thin, lighter-stained area lining the lumen, which is the central opening through which blood flows. 2. **Tunica Media**: The middle layer, composed predominantly of smooth muscle cells, is seen as a thicker pink region. This layer allows the artery to constrict and dilate, regulating blood pressure and flow. 3. **Tunica Externa (or Adventitia)**: The outermost layer, consisting of connective tissue, appears as a less defined, paler area surrounding the tunica media. It provides structural support and elasticity. These layers are key to the function of arteries in maintaining proper blood circulation throughout the body. The image is from Pearson Education, Inc., 2018.
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