Middle part of jejunum

Looks like

The middle loops of the jejunum, lying mainly in the upper left belly, with thick wall and wide bore.

What it does

Continues absorbing nutrients and water from digested food.

Keeping it well

Rarely diseased on its own; coeliac disease flattens the lining of the upper small bowel, including here.

Related conditions

• Acute mesenteric ischaemia (gut stroke)
• Bowel obstruction
• Coeliac disease
• Crohn's disease
• Food poisoning
• Gastroenteritis
• Giardiasis
• Intestinal worms & schistosomiasis
• Intussusception & pyloric stenosis
• Iron deficiency
• Irritable bowel syndrome
• Lactose & food intolerance
• Malnutrition & refeeding syndrome
• Necrotising enterocolitis
• Radiation injury
• Small intestinal bacterial overgrowth (SIBO)
• Typhoid & cholera
• Volvulus (twisted bowel)