Adaptation of ileum
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Adaptation of the ileum to its function
The ileum is the final section of the small intestine, and its primary function is to absorb nutrients from digested food particles. The following are some adaptations of the ileum to its function:
1. Villi and microvilli: The walls of the ileum are lined with thousands of tiny finger-like projections called villi. The villi are covered with even smaller projections called microvilli, which increase the surface area of the ileum for absorption.
2. Thin walls: The walls of the ileum are very thin, which allows for easy diffusion of nutrients from the digested food particles into the bloodstream.
3. Rich blood supply: The ileum has a rich supply of blood vessels, which transport the absorbed nutrients away from the intestine and into the rest of the body for use.
4. Secretions: The walls of the ileum secrete digestive enzymes and mucus, which aid in the digestion and absorption of nutrients.
5. Large lymphatic system: The ileum has a large network of lymphatic vessels, which absorb and transport fats from the digested food particles.
Overall, the adaptations of the ileum to its function allow for efficient absorption of essential nutrients and make it an important component of the digestive system.
1. Villi and microvilli: The walls of the ileum are lined with thousands of tiny finger-like projections called villi. The villi are covered with even smaller projections called microvilli, which increase the surface area of the ileum for absorption.
2. Thin walls: The walls of the ileum are very thin, which allows for easy diffusion of nutrients from the digested food particles into the bloodstream.
3. Rich blood supply: The ileum has a rich supply of blood vessels, which transport the absorbed nutrients away from the intestine and into the rest of the body for use.
4. Secretions: The walls of the ileum secrete digestive enzymes and mucus, which aid in the digestion and absorption of nutrients.
5. Large lymphatic system: The ileum has a large network of lymphatic vessels, which absorb and transport fats from the digested food particles.
Overall, the adaptations of the ileum to its function allow for efficient absorption of essential nutrients and make it an important component of the digestive system.
Name the substance that gives the enamel it's hardness
The substance that gives enamel its hardness is hydroxyapatite, which is a mineral compound consisting of calcium, phosphate, and hydroxide ions.