Blood VesselsBlood Vessels,
The Human Heart,
The Franklin Institute,
Discover what blood vessels do and the function of arteries, veins, and capillaries.
https://www.fi.edu/heart/blood-vessels
Endothelial Cells: Function, Lesson & QuizEndothelial Cells: Function, Lesson & Quiz,
Marta Toran, Instructor,
Study.com,
Along with a description, illustrations, and more, discover what the main function of endothelial cells are.
http://study.com/academy/lesson/endothelial-cells-...
