ATI TEAS Practice Test - Prep, Practice Exam & Study Guide

The correct answer identifies synovial joints as freely movable joints. These types of joints are characterized by the presence of a synovial cavity filled with synovial fluid, which lubricates the joint and facilitates smooth movements. Synovial joints allow for a wide range of motion, making them essential for various activities such as walking, running, and grasping.

In contrast, hinge joints, while they do permit movement, are limited to one plane (flexion and extension) and do not allow for the extensive range of motion offered by synovial joints. Ligament joints is not a recognized term for a type of joint; instead, ligaments serve to connect bones and stabilize joints but do not themselves define a joint type. Fibrous joints, on the other hand, are connected by dense connective tissue and do not allow for any significant movement, as they are primarily meant for stability. Hence, synovial joints stand out as the only type among these options that are classified as freely movable.