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

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Multiple Choice

Which of the following muscles raises the upper lip?

Buccinator

Levator labii superioris

Orbicularis oris

Masseter

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Verified step by step guidance

Identify the function of each muscle listed in the options. The buccinator is primarily involved in compressing the cheek, the orbicularis oris is responsible for closing the lips, and the masseter is a major muscle involved in chewing.

Understand the anatomical location and function of the levator labii superioris. This muscle is located in the facial region and is responsible for elevating the upper lip.

Compare the functions of the listed muscles with the action described in the question, which is raising the upper lip.

Recognize that the levator labii superioris is specifically named for its action (levator means 'to lift' and labii superioris refers to the 'upper lip'), making it the correct choice for raising the upper lip.

Conclude that the levator labii superioris is the muscle that raises the upper lip, based on its anatomical function and location.