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 muscle of the wrist and fingers is classified as a deep anterior flexor?

Flexor pollicis longus

Flexor digitorum profundus

Palmaris longus

Flexor carpi radialis

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Verified step by step guidance

Step 1: Understand the classification of muscles in the forearm. Muscles in the forearm are categorized into anterior (flexor) and posterior (extensor) compartments. The anterior compartment contains muscles responsible for flexion of the wrist and fingers.

Step 2: Identify the term 'deep anterior flexor.' This refers to muscles located in the deeper layer of the anterior compartment of the forearm, which are involved in flexing the fingers or wrist.

Step 3: Review the functions of the listed muscles: Flexor pollicis longus flexes the thumb, Palmaris longus is a superficial flexor of the wrist, Flexor carpi radialis flexes and abducts the wrist, and Flexor digitorum profundus flexes the distal phalanges of the fingers.

Step 4: Recognize that Flexor digitorum profundus is classified as a deep anterior flexor because it is located in the deep layer of the anterior compartment and flexes the distal joints of the fingers.

Step 5: Confirm that the correct answer is Flexor digitorum profundus based on its anatomical location and function as a deep anterior flexor of the fingers.