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 Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which class of tissue graft is the least likely to be accepted by a patient's body?

Xenograft

Isograft

Allograft

Autograft

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Verified step by step guidance

Understand the definitions of the four types of tissue grafts: Xenograft, Isograft, Allograft, and Autograft. A Xenograft is a tissue graft taken from a different species, an Isograft is from a genetically identical individual (e.g., identical twin), an Allograft is from a genetically different individual of the same species, and an Autograft is from the same individual.

Recall that the immune system plays a critical role in tissue graft acceptance. The more genetically similar the donor tissue is to the recipient, the less likely the immune system is to reject the graft.

Analyze the likelihood of rejection for each type of graft: Autografts are least likely to be rejected because the tissue comes from the same individual. Isografts are also unlikely to be rejected due to genetic identity. Allografts have a higher chance of rejection because they come from a genetically different individual of the same species. Xenografts are the most likely to be rejected because they come from a different species, which triggers a strong immune response.

Conclude that the class of tissue graft least likely to be accepted by a patient's body is the Xenograft, due to the significant genetic and species differences that provoke a strong immune rejection.

Review the importance of immunosuppressive therapy in cases where Allografts or Xenografts are used, as these treatments help reduce the likelihood of rejection by suppressing the immune response.