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

27. The Reproductive System

Introduction to the Reproductive System

Anatomy & Physiology

27. The Reproductive System

Introduction to the Reproductive System

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Multiple Choice

Which of the following is the hip flexor located deep in the pelvis and composed of two muscles?

Iliopsoas

Adductor longus

Rectus femoris

Gluteus maximus

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Verified step by step guidance

Step 1: Begin by understanding the anatomy of the hip flexor muscles. Hip flexors are muscles that help in flexing the hip joint, bringing the thigh closer to the abdomen.

Step 2: Recognize that the iliopsoas is a deep muscle located in the pelvis and is composed of two muscles: the psoas major and the iliacus. These muscles work together to flex the hip joint.

Step 3: Compare the iliopsoas with the other options provided: Adductor longus (a muscle involved in thigh adduction), Rectus femoris (a quadriceps muscle involved in knee extension and hip flexion), and Gluteus maximus (a muscle primarily responsible for hip extension). None of these are composed of two muscles or located deep in the pelvis.

Step 4: Understand the unique characteristics of the iliopsoas. The psoas major originates from the lumbar vertebrae, while the iliacus originates from the iliac fossa of the pelvis. Together, they insert on the lesser trochanter of the femur, making them a key hip flexor.

Step 5: Conclude that the correct answer is the iliopsoas, as it is the only option that fits the description of being a hip flexor located deep in the pelvis and composed of two muscles.