a b- n 0
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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Transcribed Image Text:### Human Digestive System Diagram
This educational section comprehensively details the human digestive system, identifying and labeling the vital organs as depicted in the given anatomical diagram.
#### Labeled Organs:
- **a**: Nasal Cavity
- **b**: Oral Cavity (Mouth)
- **c**: Pharynx
- **d**: Esophagus
- **e**: Liver
- **f**: Gallbladder
- **g**: Stomach
- **h**: Pancreas
- **i**: Duodenum
- **j**: Small Intestine
- **k**: Cecum
- **l**: Appendix
- **m**: Rectum
- **n**: Nostril
- **o**: Epiglottis
- **p**: Diaphragm
- **q**: Transverse Colon
- **r**: Ascending Colon
- **s**: Descending Colon
- **t**: Sigmoid Colon
- **u**: Anal Canal
- **v**: Anus
- **w**: Appendix (repeated label, possibly an error in the diagram)
### Functionality and Explanation of Major Organs:
1. **Nasal and Oral Cavities (a & b)**:
- Act as entry points for air (nasal cavity) and food (oral cavity) respectively.
2. **Pharynx (c)**:
- A muscular tube that directs food from the mouth to the esophagus.
3. **Esophagus (d)**:
- A muscular tube that transports food from the pharynx to the stomach.
4. **Liver (e)**:
- Produces bile, which helps in the digestion of fats.
5. **Gallbladder (f)**:
- Stores and concentrates bile from the liver.
6. **Stomach (g)**:
- Secretes acid and enzymes that digest food. It churns food into a semi-liquid form called chyme.
7. **Pancreas (h)**:
- Produces digestive enzymes and bicarbonate, which are released into the small intestine. It also regulates blood sugar by producing insulin.
8. **Duodenum (i)**:
- The first section of the small intestine, where most chemical digestion occurs.
9. **Small Intestine (j)**:
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