OSMT (Ontario Society of Medical Technologists) Practice Exam

The meninges consist of:

1. Brain and spinal cord

2. Pons, midbrain, and medulla

3. Dura mater, arachnoid, and pia mater

4. Hypothalamus and thalamus

The correct answer is: Dura mater, arachnoid, and pia mater

The meninges are protective membranes that cover the brain and spinal cord. They consist of three distinct layers: the dura mater, which is the tough outer layer; the arachnoid mater, a web-like middle layer; and the pia mater, a delicate inner layer that closely adheres to the surface of the brain and spinal cord. This arrangement not only provides structural support but also helps to contain cerebrospinal fluid, which cushions the central nervous system. Understanding the structure of the meninges is crucial for medical technologists, as various conditions can impact these membranes, leading to serious health issues. The other answer choices relate to different components of the nervous system but do not pertain specifically to the layers of the meninges, making them less relevant in the context of the question.