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 Head and Neck

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Anatomical Terms for the Head and Neck

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Multiple Choice

Which of the following muscles is located in the anterior region of the neck and is responsible for flexing the neck and rotating the head to the opposite side?

Sternocleidomastoid

Trapezius

Temporalis

Masseter

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Verified step by step guidance

Step 1: Begin by identifying the anatomical location of each muscle listed in the options. The sternocleidomastoid is located in the anterior region of the neck, while the trapezius is located in the posterior region of the neck and upper back. The temporalis and masseter are muscles of mastication located in the head and jaw region.

Step 2: Understand the function of each muscle. The sternocleidomastoid is responsible for flexing the neck and rotating the head to the opposite side. The trapezius primarily moves the scapula and supports the arm. The temporalis and masseter are involved in chewing and jaw movement.

Step 3: Match the function described in the question to the correct muscle. The question specifies flexing the neck and rotating the head to the opposite side, which aligns with the function of the sternocleidomastoid.

Step 4: Eliminate incorrect options based on their anatomical location and function. The trapezius, temporalis, and masseter do not perform the actions described in the question.

Step 5: Conclude that the correct answer is the sternocleidomastoid, as it is located in the anterior region of the neck and performs the specified actions of flexing the neck and rotating the head to the opposite side.