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

19. The Blood Vessels

Introduction to Blood Vessels

Anatomy & Physiology

19. The Blood Vessels

Introduction to Blood Vessels

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Multiple Choice

Arterial blood traveling to the left fingers would flow through which of the following arteries?

Left brachial artery

Left subclavian artery

Left radial artery

Left ulnar artery

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Verified step by step guidance

Step 1: Begin by understanding the pathway of arterial blood flow from the heart to the left fingers. Blood is pumped from the left ventricle of the heart into the aorta, which is the largest artery in the body.

Step 2: From the aorta, blood flows into the left subclavian artery. The subclavian artery supplies blood to the left arm and branches into smaller arteries as it progresses distally.

Step 3: The left subclavian artery gives rise to the left axillary artery, which continues into the left brachial artery as it moves down the arm. The brachial artery is the main artery supplying blood to the upper arm.

Step 4: The brachial artery bifurcates (splits) near the elbow into two major branches: the left radial artery and the left ulnar artery. These arteries supply blood to the forearm and hand.

Step 5: The left ulnar artery specifically provides blood to the medial (inner) side of the forearm and contributes to the blood supply of the fingers, particularly the pinky and ring fingers. Therefore, arterial blood traveling to the left fingers would flow through the left ulnar artery.