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

Introduction to Directional Terms

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Directional Terms

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Multiple Choice

Which precordial electrode is placed in the fourth intercostal space to the left of the sternum?

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Verified step by step guidance

Understand the placement of precordial electrodes: Precordial electrodes are part of the standard 12-lead ECG setup, and they are placed on specific locations on the chest to record electrical activity of the heart. Each electrode has a designated position based on anatomical landmarks.

Identify the anatomical landmark: The fourth intercostal space is located between the fourth and fifth ribs. To find this space, start at the top of the sternum and count downward along the ribs until you reach the fourth intercostal space.

Determine the left side of the sternum: The sternum is the central bone in the chest. The left side refers to the area to the left of this bone, where the electrode will be placed.

Match the electrode to its position: V2 is the precordial electrode that is specifically placed in the fourth intercostal space to the left of the sternum. This is part of the standard ECG placement protocol.

Review the other options for clarity: V1 is placed in the fourth intercostal space to the right of the sternum, V3 is placed between V2 and V4, and V4 is placed in the fifth intercostal space at the midclavicular line. This confirms that V2 is the correct answer for the given position.