Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

12. The Central Nervous System

Introduction to the Central Nervous System

Anatomy & Physiology

12. The Central Nervous System

Introduction to the Central Nervous System

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which structures are extensions of the pia mater that anchor the spinal cord to the dura mater?

Filum terminale

Arachnoid villi

Dentate ligaments

Dorsal root ganglia

Previous problemNext problem

Verified step by step guidance

Understand the anatomy of the spinal cord and its surrounding meninges: The spinal cord is protected by three layers of meninges—dura mater (outermost), arachnoid mater (middle), and pia mater (innermost). The pia mater is a thin, delicate membrane that closely adheres to the surface of the spinal cord.

Learn about the function of the pia mater: The pia mater not only provides protection but also forms specialized structures that help stabilize the spinal cord within the vertebral column.

Identify the dentate ligaments: These are lateral extensions of the pia mater that project outward and attach to the dura mater. They act as anchoring structures to prevent excessive movement of the spinal cord within the vertebral canal.

Differentiate the dentate ligaments from other structures: The filum terminale is a single extension of the pia mater that anchors the spinal cord to the coccyx, while arachnoid villi are involved in cerebrospinal fluid absorption and are not related to spinal cord stabilization. Dorsal root ganglia are clusters of sensory neuron cell bodies and are unrelated to the pia mater.

Conclude that the correct answer is dentate ligaments, as they are the specific extensions of the pia mater responsible for anchoring the spinal cord to the dura mater.