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

7. The Skeletal System

The Pectoral Girdle

Anatomy & Physiology

7. The Skeletal System

The Pectoral Girdle

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Multiple Choice

Which bones form the pectoral girdle?

Clavicle and scapula

Sternum and clavicle

Scapula and humerus

Humerus and radius

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Verified step by step guidance

Step 1: Understand the anatomical location and function of the pectoral girdle. The pectoral girdle is part of the appendicular skeleton and serves as the attachment point for the upper limbs to the axial skeleton.

Step 2: Recall the bones that make up the pectoral girdle. The pectoral girdle consists of two bones: the clavicle (collarbone) and the scapula (shoulder blade). These bones work together to provide support and mobility for the upper limbs.

Step 3: Eliminate incorrect options based on anatomical knowledge. For example, the sternum is part of the axial skeleton and does not form the pectoral girdle. Similarly, the humerus and radius are bones of the upper limb, not the girdle.

Step 4: Confirm the correct answer by matching the anatomical description of the pectoral girdle with the provided options. The correct combination is 'Clavicle and scapula.'

Step 5: Review the role of the clavicle and scapula in the pectoral girdle. The clavicle acts as a strut to stabilize the shoulder, while the scapula provides attachment points for muscles and facilitates arm movement.