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

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Multiple Choice

Which blood vessel is primarily responsible for supplying blood to the inferior surface of the brain?

Jugular vein

Superior sagittal sinus

External carotid artery

Basilar artery

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Verified step by step guidance

Understand the anatomy of the brain's blood supply: The brain receives blood through two main arterial systems—the internal carotid arteries and the vertebral arteries. These systems form the Circle of Willis, which distributes blood to various regions of the brain.

Focus on the vertebral arteries: The vertebral arteries ascend through the cervical vertebrae and merge to form the basilar artery at the base of the brain. This artery is crucial for supplying blood to the inferior surface of the brain, including the brainstem and cerebellum.

Eliminate incorrect options: The jugular vein is a vein responsible for draining blood from the brain, not supplying it. The superior sagittal sinus is a venous sinus that collects blood from the brain and directs it to the jugular vein. The external carotid artery supplies blood to the face and external structures, not the brain.

Identify the correct vessel: The basilar artery is formed by the union of the vertebral arteries and is responsible for supplying blood to the inferior surface of the brain, including critical areas like the brainstem and cerebellum.

Review the importance of the basilar artery: The basilar artery plays a vital role in maintaining blood flow to the posterior and inferior regions of the brain. Damage or blockage to this artery can lead to serious neurological deficits.