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

What is Anatomy & Physiology?

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

What is Anatomy & Physiology?

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Multiple Choice

The penis consists of three parallel erectile tissues. Which of the following occurs as a pair?

Corpora cavernosa

Glans penis

Tunica albuginea

Corpus spongiosum

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Verified step by step guidance

Step 1: Begin by identifying the anatomical structures listed in the problem: Corpora cavernosa, Glans penis, Tunica albuginea, and Corpus spongiosum. Understand their roles and locations within the penis.

Step 2: Recall that the penis contains three parallel erectile tissues: two corpora cavernosa and one corpus spongiosum. These tissues are responsible for engorgement during erection.

Step 3: Focus on the term 'occurs as a pair.' This indicates that the structure being referred to must exist in two identical units within the penis.

Step 4: Analyze the options: The corpora cavernosa are paired structures located on the dorsal side of the penis, while the corpus spongiosum is a single structure surrounding the urethra. The glans penis is the expanded distal end of the corpus spongiosum, and the tunica albuginea is a connective tissue layer surrounding the erectile tissues.

Step 5: Conclude that the corpora cavernosa are the correct answer because they are the only structure listed that occurs as a pair in the penis.