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The lymphatic tissues/organs illustrated below contain which of the following types of cells? 1.  reticular cells 2.  macrophages 3.  B lymphocytes 4.  T lymphocytes Choose from the following: (A) 1, 2 and 3 (B) 1, 2, and 4 (C) 2, 3, and 4 (D) 1, 3, and 4 (E) 1, 2, 3, and 4

The lymphatic tissues/organs illustrated below contain which of the following types of cells? 1.  reticular cells 2.  macrophages 3.  B lymphocytes 4.  T lymphocytes Choose from the following: (A) 1, 2 and 3 (B) 1, 2, and 4 (C) 2, 3, and 4 (D) 1, 3, and 4 (E) 1, 2, 3, and 4

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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The lymphatic tissues/organs illustrated below contain which of the following types of cells?

1.  reticular cells

2.  macrophages

3.  B lymphocytes

4.  T lymphocytes

Choose from the following:

(A) 1, 2 and 3
(B) 1, 2, and 4
(C) 2, 3, and 4
(D) 1, 3, and 4
(E) 1, 2, 3, and 4
**Histology of the Small Intestine** This image depicts a histological section of the small intestine, stained to highlight cellular structures. The purple stain contrasts various tissue components, providing insight into the intestine's anatomy. ### Key Features: 1. **Villi**: The finger-like projections seen at the top of the image are villi. These structures increase the surface area for absorption and are essential for efficient nutrient uptake. 2. **Crypts of Lieberkühn**: Located at the base of the villi, these glandular structures are visible as invaginations. They contain cells responsible for secreting intestinal juices and generating new epithelial cells. 3. **Muscularis Mucosae**: Below the crypts, a thin layer of muscle can be observed, which is part of the muscularis mucosae. This layer aids in the movement of the mucosa. 4. **Submucosa**: The dense layer beneath the mucosa includes connective tissue, blood vessels, and nerves, providing structural support and nourishment to the mucosa above. 5. **Peyer's Patches (highlighted by larger rectangle)**: These appear as circular or oval darker regions in the submucosa, representing aggregations of lymphoid tissue. They play a role in the immune surveillance of intestinal contents. ### Explanation of Diagrams: The image contains two highlighted boxes. - The **larger rectangle** centers on a villus, crypts, and part of the underlying submucosa, indicating the transition between epithelial structures and lymphoid tissues (Peyer's patches). - The **smaller rectangle** focuses specifically on a segment of the submucosa, likely emphasizing histological details such as cellular makeup or tissue arrangement. This tissue architecture supports the primary functions of the small intestine: nutrient absorption, digestion, and immune response.
Transcribed Image Text:**Histology of the Small Intestine** This image depicts a histological section of the small intestine, stained to highlight cellular structures. The purple stain contrasts various tissue components, providing insight into the intestine's anatomy. ### Key Features: 1. **Villi**: The finger-like projections seen at the top of the image are villi. These structures increase the surface area for absorption and are essential for efficient nutrient uptake. 2. **Crypts of Lieberkühn**: Located at the base of the villi, these glandular structures are visible as invaginations. They contain cells responsible for secreting intestinal juices and generating new epithelial cells. 3. **Muscularis Mucosae**: Below the crypts, a thin layer of muscle can be observed, which is part of the muscularis mucosae. This layer aids in the movement of the mucosa. 4. **Submucosa**: The dense layer beneath the mucosa includes connective tissue, blood vessels, and nerves, providing structural support and nourishment to the mucosa above. 5. **Peyer's Patches (highlighted by larger rectangle)**: These appear as circular or oval darker regions in the submucosa, representing aggregations of lymphoid tissue. They play a role in the immune surveillance of intestinal contents. ### Explanation of Diagrams: The image contains two highlighted boxes. - The **larger rectangle** centers on a villus, crypts, and part of the underlying submucosa, indicating the transition between epithelial structures and lymphoid tissues (Peyer's patches). - The **smaller rectangle** focuses specifically on a segment of the submucosa, likely emphasizing histological details such as cellular makeup or tissue arrangement. This tissue architecture supports the primary functions of the small intestine: nutrient absorption, digestion, and immune response.
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