Categorie: Tutti - immune - circulatory - absorption - diseases

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Small intestine

The primary function of the small intestine is the absorption of nutrients from digested food, facilitated by its intricate structure comprising the duodenum, jejunum, and ileum. The presence of villi and microvilli significantly increases the surface area for more efficient nutrient absorption.

Small intestine

Small intestine

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Transplant Effects

Short term
Physical Limitations
Dietary Changes
Medication and Monitoring
Recovery Period
Longterm
Quality of Life
Physical Activity
Dietary Management
Health Monitoring
Lifelong Medication

Layers of tissues

Serosa
Muscularis Externa
Submucosa
Mucosa

Interacted Systems

Immune
Nervous
Circulatory
Digestive

Main Function

Absorption of nutrients from digested food.
Consists of three segments: duodenum, jejunum, and ileum.

Villi and microvilli increase surface area for absorption.

Enterocytes absorb nutrients into bloodstream.

Absorbed nutrients include sugars, amino acids, fatty acids, vitamins, and minerals.

Water absorption also occurs in the small intestine.

Interconnected Systems

Circulatory System
Nutrients absorbed into bloodstream through capillaries in small intestine villi.
Circulatory system transports absorbed nutrients to various tissues and organs.
Immune System
Intestinal epithelial cells secrete mucus and produce antimicrobial peptides, aiding immune defense.
Immune system protects digestive system from pathogens and foreign substances.

Diseases

Small Intestinal Parasitic Infections
hookworms
Cryptosporidium
Giardia lamblia
Crohn's disease
Celiac disease