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

1. Introduction to Anatomy & Physiology

Anatomical Terms for the Head and Neck

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Anatomical Terms for the Head and Neck

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 suture is considered the weakest point of the skull and is most susceptible to fracture?

Pterion

Sagittal suture

Lambdoid suture

Coronal suture

Previous problemNext problem

Verified step by step guidance

Step 1: Begin by understanding what sutures are. Sutures are fibrous joints that connect the bones of the skull. They are immovable and play a critical role in protecting the brain by holding the skull bones together.

Step 2: Review the anatomical location and significance of each suture mentioned in the problem: the sagittal suture (runs along the midline of the skull), the lambdoid suture (connects the occipital bone to the parietal bones), and the coronal suture (connects the frontal bone to the parietal bones).

Step 3: Learn about the pterion, which is not a suture but rather a region where four skull bones meet: the frontal, parietal, temporal, and sphenoid bones. It is considered the weakest point of the skull because the bone is thin and the middle meningeal artery runs beneath it, making it susceptible to fractures and serious complications.

Step 4: Compare the structural integrity of the sutures versus the pterion. Sutures are generally stronger because they are reinforced by fibrous tissue, whereas the pterion is a thin and vulnerable area.

Step 5: Conclude that the pterion is the correct answer to the question, as it is the weakest point of the skull and most susceptible to fracture, unlike the sagittal, lambdoid, or coronal sutures.