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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Problem 11

Textbook Question

Name the three major types of plasma proteins and identify their functions.

Verified step by step guidance

Plasma proteins are essential components of blood plasma, and there are three major types: albumins, globulins, and fibrinogen. Begin by identifying each type and its primary function.

Albumins: These are the most abundant plasma proteins. Their primary function is to maintain osmotic pressure, which helps regulate the exchange of water between blood and tissues. They also act as transport proteins for various substances, such as hormones and fatty acids.

Globulins: These proteins are divided into alpha, beta, and gamma globulins. Alpha and beta globulins are involved in transporting lipids, vitamins, and other molecules, while gamma globulins (immunoglobulins) play a crucial role in immune defense by acting as antibodies.

Fibrinogen: This plasma protein is essential for blood clotting. When a blood vessel is injured, fibrinogen is converted into fibrin, which forms a mesh-like structure to stop bleeding and initiate wound healing.

Summarize the functions of these proteins: Albumins regulate osmotic pressure and transport substances, globulins are involved in transport and immune defense, and fibrinogen is critical for blood clotting.

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Key Concepts

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

Albumin

Albumin is the most abundant plasma protein, primarily produced by the liver. It plays a crucial role in maintaining oncotic pressure, which helps regulate the distribution of fluids between blood vessels and tissues. Additionally, albumin serves as a carrier for various substances, including hormones, vitamins, and drugs, facilitating their transport in the bloodstream.

Globulins

Globulins are a group of proteins in the plasma that are classified into three main types: alpha, beta, and gamma globulins. They are involved in various functions, including immune response (gamma globulins or antibodies), transport of lipids and fat-soluble vitamins (alpha and beta globulins), and blood clotting. Their diverse roles are essential for maintaining overall health and immune function.

Fibrinogen

Fibrinogen is a soluble plasma protein produced by the liver that plays a critical role in blood coagulation. When activated during the clotting process, fibrinogen is converted into fibrin, which forms a mesh that helps to stabilize blood clots. This function is vital for preventing excessive bleeding and facilitating wound healing.