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

Each brachial plexus is formed by the anterior rami of which spinal nerves?

L1-L5

C5-T1

T2-T6

C1-C4

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Verified step by step guidance

Understand the brachial plexus: The brachial plexus is a network of nerves that originates from the spinal cord and provides motor and sensory innervation to the upper limb. It is formed by the anterior rami (ventral rami) of specific spinal nerves.

Identify the spinal nerve regions: The spinal nerves are grouped into cervical (C), thoracic (T), lumbar (L), sacral (S), and coccygeal regions. The brachial plexus specifically arises from the cervical and upper thoracic regions.

Recall the specific spinal nerves involved: The brachial plexus is formed by the anterior rami of spinal nerves C5, C6, C7, C8, and T1. These nerves combine to form the roots of the plexus, which then branch into trunks, divisions, cords, and terminal nerves.

Compare the options provided: Evaluate each option to determine which spinal nerve range corresponds to the brachial plexus. For example, L1-L5 refers to the lumbar region, T2-T6 refers to the thoracic region, and C1-C4 refers to the cervical region but is associated with the cervical plexus, not the brachial plexus.

Select the correct answer: Based on the anatomical knowledge, the correct range of spinal nerves forming the brachial plexus is C5-T1.