Which process occurs when the kidneys produce hormones such as calcitriol and erythropoietin?

• A. Digestive function
• B. Endocrine function
• C. Exocrine function
• D. Metabolic function

Answer: (B)

Verified step by step guidance

1. Understand the role of the kidneys in the body. The kidneys are primarily known for their function in filtering blood and producing urine, but they also have other important roles.
2. Recognize that the kidneys produce hormones such as calcitriol and erythropoietin. Calcitriol is involved in calcium regulation, while erythropoietin stimulates red blood cell production.
3. Identify the type of function associated with hormone production. Hormones are chemical messengers that are released into the bloodstream to regulate various physiological processes.
4. Differentiate between endocrine and exocrine functions. Endocrine functions involve the release of hormones directly into the bloodstream, whereas exocrine functions involve the release of substances through ducts to the outside of the body or into the digestive tract.
5. Conclude that the production of hormones like calcitriol and erythropoietin by the kidneys is an endocrine function, as these hormones are released into the bloodstream to exert their effects on distant target organs.