Table of contents

1. Introduction to Anatomy & Physiology5h 40m
2. Cell Chemistry & Cell Components12h 37m
3. Energy & Cell Processes10h 7m
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 Blood1h 22m
18. The Heart1h 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 Balance Coming soon
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity Coming soon

1. Introduction to Anatomy & Physiology

Organization of the Body: Thoracic Cavity

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Organization of the Body: Thoracic Cavity

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Problem 7

Textbook Question

Multiple Choice More than one choice may apply. The base of the heart is its _______surface. a. diaphragmatic b. superior c. anterior d. inferior

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Understand the anatomical orientation of the heart in the thoracic cavity.

Identify the different surfaces of the heart: anterior, posterior, inferior, and superior.

The base of the heart is primarily formed by the left atrium and a small portion of the right atrium.

Consider the anatomical position of the heart where the base is directed towards the posterior and superior aspects.

Determine which of the given options corresponds to the superior surface of the heart.

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Key Concepts

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

Anatomy of the Heart

The heart is a muscular organ with distinct surfaces and orientations. Understanding its anatomy is crucial for identifying specific terms related to its structure, such as the base, apex, and various surfaces. The base of the heart refers to the upper part where major blood vessels enter and exit.

Heart Surfaces

The heart has several surfaces, including the anterior, posterior, superior, and inferior surfaces. The superior surface, also known as the base, is oriented towards the right shoulder and is where the great vessels are located. Recognizing these surfaces helps in understanding the heart's orientation within the thoracic cavity.

Directional Terms in Anatomy

Directional terms are used in anatomy to describe the location of structures relative to other structures. Terms like superior (above), inferior (below), anterior (front), and posterior (back) provide a clear framework for understanding the position of the heart and its components. This knowledge is essential for accurately answering questions about anatomical relationships.

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