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

9. Muscle Tissue

Introduction to Muscles and Muscle Tissue

Anatomy & Physiology

9. Muscle Tissue

Introduction to Muscles and Muscle Tissue

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which superficial muscle covers a large part of the posterior thorax?

Latissimus dorsi

Biceps brachii

Rectus abdominis

Pectoralis major

Previous problemNext problem

Verified step by step guidance

Step 1: Begin by identifying the anatomical location described in the question. The posterior thorax refers to the back side of the chest region.

Step 2: Review the functions and locations of the muscles listed in the options. For example, the latissimus dorsi is a large, flat muscle that spans the lower back and extends to the posterior thorax.

Step 3: Compare the latissimus dorsi to the other options. The biceps brachii is located in the anterior arm, the rectus abdominis is part of the abdominal wall, and the pectoralis major is located in the anterior chest.

Step 4: Understand that the latissimus dorsi is the only muscle among the options that covers a significant portion of the posterior thorax. It plays a role in movements such as arm extension, adduction, and internal rotation.

Step 5: Conclude that the correct answer is latissimus dorsi based on its anatomical location and function, as it matches the description provided in the question.