Which feature is associated with the tunica intima of veins? A) It comprises a single layer of muscle cells. B) It forms no valves in the venous system. C) It is the thickest layer... Which feature is associated with the tunica intima of veins? A) It comprises a single layer of muscle cells. B) It forms no valves in the venous system. C) It is the thickest layer throughout the vessel. D) It includes smooth muscle and elastic fibers.
Understand the Problem
The question is asking about the characteristics of the tunica intima in veins, specifically which feature accurately describes it. The options provided are potential attributes, and one must be identified as correct.
Answer
It includes smooth muscle and elastic fibers.
The feature associated with the tunica intima of veins is that it includes smooth muscle and elastic fibers.
Answer for screen readers
The feature associated with the tunica intima of veins is that it includes smooth muscle and elastic fibers.
More Information
The tunica intima is the innermost layer of veins, comprised mostly of the endothelial layer and subendothelial connective tissue, which includes some smooth muscle and elastic fibers.
Tips
A common mistake is confusing the roles of the different tunics (intima, media, externa) in blood vessels. The tunica intima is primarily responsible for lining the interior of veins, while the media contains more muscle and elastic fibers, especially in arteries.
Sources
- Structure and Function of Blood Vessels | Anatomy and Physiology II - courses.lumenlearning.com
- Tunica Intima - an overview | ScienceDirect Topics - sciencedirect.com
AI-generated content may contain errors. Please verify critical information
