TESDA Caregiving Practice Exam 2025 – Comprehensive Study Guide

The circulatory system is crucial for maintaining the body's overall health and functionality. Its primary role is to transport essential substances such as oxygen, nutrients, and hormones to various tissues and organs, ensuring they receive what they need to function properly. Additionally, it helps remove metabolic wastes, including carbon dioxide and other byproducts of cellular processes, which are transported to excretory organs for elimination from the body. This system consists of the heart, blood vessels, and blood, working in concert to facilitate these vital processes.

The other systems listed serve different functions. The muscular system is primarily involved in movement and stability. The digestive system focuses on the breakdown of food, nutrient absorption, and waste elimination; although it plays a role in nutrient distribution after absorption, it does not directly handle circulation. The endocrine system regulates bodily functions through hormones, affecting metabolism, growth, and homeostasis, but it does not perform the transportation of nutrients and oxygen. Thus, the circulatory system stands out as the correct answer for this question.