Chapter 17

Nutrition and Digestion

What is Monogastric Digestion?
The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber with which it…
Anatomy of the Intestines
17.2: Anatomy of the Intestines
The absorption of nutrients, water, and electrolytes from food and drink occurs in the intestine, after the stomach has broken proteins,…
Accessory Organs
17.3: Accessory Organs
Accessory organs are those which participate in the digestion of food but do not come into direct contact with it like the mouth, stomach, or…
Lipid Digestion
17.4: Lipid Digestion
Lipids are large molecules that are generally not water-soluble. Since most of the digestive enzymes in the human body are water-based, there are…
Protein Digestion
17.5: Protein Digestion
Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of…
Carbohydrate Digestion
17.6: Carbohydrate Digestion
Carbohydrates provide energy for the body to do mental and physical tasks. Carbohydrate digestion and metabolism breaks complex carbohydrates, simple…
Neural Regulation
17.7: Neural Regulation
Digestion begins with a cephalic phase designed to prepare the digestive system. When our brain processes visual or olfactory information about food,…
Hormonal Regulation
17.8: Hormonal Regulation
Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains…
Analyzing Nutrients
17.9: Analyzing Nutrients
Certain dietary nutrients—such as protein content—can vary within a particular food type. For instance, varieties of sweetcorn can differ…
Neuroscience: Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans
17.10: Neuroscience: Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans
An individual’s oral sensitivity to fat is associated with the ability to identify it when eating. This article uses a drink with milk and…
Medicine: Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
17.11: Medicine: Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Bone mineral density is an important factor in understanding nutritional intake in juveniles and adults. This article demonstrates a novel method for…
Bioengineering: Treatment of Ligament Constructs with Exercise-conditioned Serum
17.12: Bioengineering: Treatment of Ligament Constructs with Exercise-conditioned Serum
Tendon and ligament injuries can be debilitating to quality of life. In this protocol, 3D engineered constructs are treated with exercise-conditioned…