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

23. The Digestive System

Introduction to the Digestive System

Anatomy & Physiology

23. The Digestive System

Introduction to the Digestive System

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

The muscularis usually contains two layers of ______ muscle.

skeletal

cardiac

connective

smooth

Previous problemNext problem

Verified step by step guidance

Understand the structure of the muscularis layer: The muscularis is a layer of muscle tissue found in the walls of hollow organs, such as the gastrointestinal tract. Its primary function is to facilitate movement and mixing of contents within the organ.

Identify the type of muscle tissue present: The muscularis typically consists of smooth muscle, which is involuntary and non-striated. Smooth muscle is responsible for peristalsis and other involuntary movements in the body.

Recognize the arrangement of the muscle layers: The muscularis usually contains two layers of smooth muscle. These layers are organized as an inner circular layer and an outer longitudinal layer. This arrangement allows for coordinated contractions to propel contents through the organ.

Differentiate smooth muscle from other types: Smooth muscle is distinct from skeletal muscle (voluntary and striated) and cardiac muscle (involuntary and striated, found only in the heart). Connective tissue is not a type of muscle but rather a supportive tissue.

Confirm the correct answer: Based on the anatomy and function of the muscularis, the correct answer is smooth muscle, as it matches the description and role of the muscularis layer.