Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Question

The vessel marked (red arrow) first drains directly into which of the following vessels?

(A) internal iliac vein
(B) common iliac vein
(C) middle rectal vein
(D) inferior rectal vein
(E) internal pudendal vein
The image is an anatomical illustration of the human pelvic region highlighting the rectal venous system. The illustration focuses on the network of veins surrounding the rectum, which includes several notable features: 1. **Venous Network**: - The rectal venous plexus is prominently shown in blue, illustrating the intricate pattern of veins that facilitate blood drainage from the rectal area. 2. **Arrows and Highlighting**: - A red arrow is used to point to a specific area in the illustration. This area is emphasized to indicate a particular point of interest, possibly highlighting a site of clinical significance like hemorrhoids or detailing the pathway of venous drainage. 3. **Surrounding Structures**: - The pelvic bones are shown on either side, providing context for the positioning of the rectum within the human pelvis. - The vertebral column is partially visible, giving an idea of the spatial orientation of these structures in relation to the spine. 4. **Color Coding**: - The veins are depicted in blue, arteries (if any) would typically be shown in red, and other anatomical structures are colored to distinguish different tissues and organs. This diagram is useful for educational purposes, illustrating the anatomy relevant to medical studies of the rectal and pelvic vascular systems and helping to understand conditions such as hemorrhoids or other venous concerns in the pelvic region.
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Transcribed Image Text:The image is an anatomical illustration of the human pelvic region highlighting the rectal venous system. The illustration focuses on the network of veins surrounding the rectum, which includes several notable features: 1. **Venous Network**: - The rectal venous plexus is prominently shown in blue, illustrating the intricate pattern of veins that facilitate blood drainage from the rectal area. 2. **Arrows and Highlighting**: - A red arrow is used to point to a specific area in the illustration. This area is emphasized to indicate a particular point of interest, possibly highlighting a site of clinical significance like hemorrhoids or detailing the pathway of venous drainage. 3. **Surrounding Structures**: - The pelvic bones are shown on either side, providing context for the positioning of the rectum within the human pelvis. - The vertebral column is partially visible, giving an idea of the spatial orientation of these structures in relation to the spine. 4. **Color Coding**: - The veins are depicted in blue, arteries (if any) would typically be shown in red, and other anatomical structures are colored to distinguish different tissues and organs. This diagram is useful for educational purposes, illustrating the anatomy relevant to medical studies of the rectal and pelvic vascular systems and helping to understand conditions such as hemorrhoids or other venous concerns in the pelvic region.
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