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Refer to the cross section of the ascidian pharynx above.  Structure A is the ________________________ and is responsible for _______________________

Refer to the cross section of the ascidian pharynx above.  Structure A is the ________________________ and is responsible for _______________________

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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Refer to the cross section of the ascidian pharynx above.  Structure A is the ________________________ and is responsible for _______________________

### Description of the Cross Section of the Ascidian Pharynx This diagram depicts a cross-section of an ascidian pharynx with three labeled structures: - **Structure A**: Positioned at the top of the diagram, this structure is highlighted within the lumen. - **Structure B**: These are evenly distributed around the inner surface. - **Structure C**: Located at the bottom, showing multiple segments or projections. ### Explanation Task Based on the image, the task is to identify Structure A. The question is as follows: "Refer to the cross section of the ascidian pharynx above. Structure A is the ______________________ and is responsible for ______________________." ### Options for Completion 1. **endostyle---mucus net production** 2. **frontal cilia---spreading mucus net** 3. **dorsal lamina---shunts net to esophagus** 4. **endostyle---shunts net to esophagus** 5. **dorsal lamina---mucus net production** ### Diagram Summary The diagram is a cross-section labeled "XS," showcasing the internal anatomy and functions of the ascidian pharynx, focusing on mucus production and transport pathways within the organism.
Transcribed Image Text:### Description of the Cross Section of the Ascidian Pharynx This diagram depicts a cross-section of an ascidian pharynx with three labeled structures: - **Structure A**: Positioned at the top of the diagram, this structure is highlighted within the lumen. - **Structure B**: These are evenly distributed around the inner surface. - **Structure C**: Located at the bottom, showing multiple segments or projections. ### Explanation Task Based on the image, the task is to identify Structure A. The question is as follows: "Refer to the cross section of the ascidian pharynx above. Structure A is the ______________________ and is responsible for ______________________." ### Options for Completion 1. **endostyle---mucus net production** 2. **frontal cilia---spreading mucus net** 3. **dorsal lamina---shunts net to esophagus** 4. **endostyle---shunts net to esophagus** 5. **dorsal lamina---mucus net production** ### Diagram Summary The diagram is a cross-section labeled "XS," showcasing the internal anatomy and functions of the ascidian pharynx, focusing on mucus production and transport pathways within the organism.
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