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

Anatomical Terms for the Arm and Hand

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Anatomical Terms for the Arm and Hand

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Multiple Choice

The muscles brachioradialis and sternocleidomastoid are named based on which of the following criteria?

Their relative size

The direction of their muscle fibers

Their points of origin and insertion

The action they perform

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Verified step by step guidance

Understand the naming conventions of muscles in Anatomy. Muscles are often named based on criteria such as their location, shape, size, direction of fibers, points of origin and insertion, or the action they perform.

Analyze the names of the muscles provided: 'brachioradialis' and 'sternocleidomastoid'. These names provide clues about their points of origin and insertion.

Break down the name 'brachioradialis': 'brachio-' refers to the arm (brachium), and 'radialis' refers to the radius bone in the forearm. This indicates the muscle spans from the arm to the radius, describing its points of origin and insertion.

Break down the name 'sternocleidomastoid': 'sterno-' refers to the sternum, 'cleido-' refers to the clavicle, and 'mastoid' refers to the mastoid process of the temporal bone. This name describes the muscle's points of origin (sternum and clavicle) and insertion (mastoid process).

Conclude that the naming of these muscles is based on their points of origin and insertion, as the names explicitly describe the anatomical structures they connect.