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 Hemodynamics

Anatomy & Physiology

19. The Blood Vessels

Introduction to Hemodynamics

Previous problemNext problem

1:23 minutes

Problem 12

Textbook Question

Tracing the blood from the heart to the right hand, we find that blood leaves the heart and passes through the aorta, the right subclavian artery, the axillary and brachial arteries, and through either the radial or ulnar artery to arrive at the hand. Which artery is missing from this sequence?
a. Coronary
b. Brachiocephalic
c. Cephalic
d. Right common carotid

Verified step by step guidance

Step 1: Begin by understanding the sequence of blood flow from the heart to the right hand. Blood leaves the heart through the left ventricle and enters the aorta, the largest artery in the body.

Step 2: Recognize that the aorta has branches that supply blood to different regions of the body. For blood to reach the right hand, it must pass through the brachiocephalic artery, which is the first major branch of the aortic arch.

Step 3: After the brachiocephalic artery, blood flows into the right subclavian artery, which supplies the right arm and shoulder region.

Step 4: From the right subclavian artery, blood continues into the axillary artery, which is located near the armpit, and then into the brachial artery, which runs along the upper arm.

Step 5: Finally, blood flows into either the radial artery (on the thumb side) or the ulnar artery (on the pinky side) to reach the hand. The missing artery in the sequence is the brachiocephalic artery, as it is essential for directing blood from the aorta to the right subclavian artery.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above

Video duration:

Play a video:

Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Circulatory System Anatomy

Understanding the anatomy of the circulatory system is essential for tracing blood flow. The heart pumps blood into the aorta, which branches into various arteries supplying different body parts. Knowledge of major arteries, such as the subclavian, axillary, and brachial arteries, is crucial for following the path of blood to the right hand.

Arterial Pathways

Arterial pathways refer to the specific routes that blood takes as it travels through the body. In this case, recognizing the sequence of arteries from the heart to the hand helps identify any missing arteries. Each artery serves a distinct role in supplying blood to specific regions, making it important to understand their connections.

Common Arteries and Their Functions

Familiarity with common arteries and their functions aids in identifying which artery is missing in the sequence. For instance, the brachiocephalic artery branches off the aorta and supplies blood to the right arm and head. Recognizing the roles of arteries like the coronary, brachiocephalic, and common carotid is vital for answering questions about blood flow.