CK-12 Foundation
Ck 12: Biology: Urinary System
[Free Registration/Login may be required to access all resource tools.] Discusses how the urinary system filters blood and excretes wastes.
Other
Kidney Function and Care
The author of this article, Ron Kennedy, M.D., describes the kidney and its functions in an easy to understand way.
Educaplus (Jesús Peñas Cano)
Educaplus: Sistema Urinario [In Spanish]
Learn the structure of the urinary system and then take a quiz to test your knowledge.
CK-12 Foundation
Ck 12: Biology: Urinary System
[Free Registration/Login may be required to access all resource tools.] Describes the structure and function of organs that comprise the urinary system, and explains how the production of urine and the process of urination are controlled.
CK-12 Foundation
Ck 12: Biology: Excretory System Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on the excretory system.
CK-12 Foundation
Ck 12: Life Science: 11.37 Urinary System
Learn about the structure and function of the urinary system.
Other
E Synopsis: Normal Ureter
This is a useful site that shows several cross section pictures that can be enlarged with a brief description. There are also references listed for further research.
Sophia Learning
Sophia: Organ Systems: Lesson 2
This lesson will introduce the 11 organ systems of the body, giving a brief overview of their function. It is 2 of 2 in the series titled "Organ Systems."
Sophia Learning
Sophia: Organ Systems: Lesson 1
This lesson will introduce the 11 organ systems of the body, giving a brief overview of their function. It is 1 of 2 in the series titled "Organ Systems."
CK-12 Foundation
Ck 12: Biology: Excretory System Diseases
[Free Registration/Login may be required to access all resource tools.] Covers some common kidney diseases and dialysis.
Curated OER
Kids Health: Tus Rinones
Read about what your kidneys do and why do you need at least one kidney to live.
Other
Healthline: Three Dimensional Body Map: Male Urinary System
Rotatable three-dimensional model of the body with components of the urinary system (male) labeled.