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 flexes the hip?

Gastrocnemius

Biceps femoris

Gluteus maximus

Iliopsoas

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Verified step by step guidance

Step 1: Understand the function of hip flexion. Hip flexion refers to the movement that decreases the angle between the thigh and the pelvis, bringing the thigh closer to the torso.

Step 2: Review the primary muscles involved in hip flexion. The iliopsoas muscle group, which includes the psoas major and iliacus, is the primary muscle responsible for flexing the hip.

Step 3: Analyze the listed muscles and their functions: - Gastrocnemius: This muscle is located in the calf and primarily functions in plantar flexion of the foot and flexion of the knee, not hip flexion. - Biceps femoris: This is part of the hamstring group and primarily functions in knee flexion and hip extension, not flexion. - Gluteus maximus: This muscle is the largest of the gluteal muscles and primarily functions in hip extension and external rotation, not flexion.

Step 4: Identify the correct muscle for hip flexion. The iliopsoas is the correct answer because it is the primary muscle responsible for flexing the hip joint.

Step 5: Conclude that the iliopsoas is the correct answer based on its anatomical location and function in hip flexion, while the other muscles listed serve different roles in movement.