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

17. The Blood

Introduction To Blood

Anatomy & Physiology

17. The Blood

Introduction To Blood

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Multiple Choice

Which of the following is NOT a formed element in blood?

Erythrocyte

Platelet

Plasma

Leukocyte

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Verified step by step guidance

Step 1: Understand the term 'formed elements' in blood. Formed elements refer to the cellular components of blood, which include erythrocytes (red blood cells), leukocytes (white blood cells), and platelets (cell fragments). These are distinct from the liquid portion of blood.

Step 2: Recognize that plasma is the liquid component of blood. It is not a cellular or formed element but rather the fluid that carries nutrients, hormones, waste products, and the formed elements.

Step 3: Compare the options provided: Erythrocytes, platelets, and leukocytes are all formed elements because they are cellular or cellular fragments. Plasma, however, is not a formed element as it is the liquid portion of blood.

Step 4: Identify the correct answer based on the definition of formed elements. Plasma is the correct answer because it does not fall under the category of formed elements.

Step 5: Conclude that understanding the distinction between formed elements and plasma is essential for answering questions related to blood composition.