QuestionSBA
QuestionChoice
The terminal ileum is the primary location of B12 absorption. Calcium, folate, monosaccharides and other nutrients are absorbed in the jejunum.
10007110
e
Jejunum
QuestionChoice
The stomach does not perform absorption of B12, but it is where B12 is bound to intrinsic factor. The terminal ileum is the primary location of B12 absorption.
10007108
c
Fundus of stomach
QuestionChoice
Incorrect, the terminal ileum is the primary location of B12 absorption.
10007109
d
Large intestine
QuestionChoice
Incorrect, the terminal ileum is the primary location of B12 absorption.
10007107
b
Duodenum
QuestionChoice
The terminal ileum is the primary location of B12 absorption, along with water, sodium, and monoglycerides.
10007106
a
Ileum
Concept
Chapter
2693
4568
Fluid and electrolyte absorption in the GI tract
Topic
149
Gastro-intestinal physiology
13968
A 55-year-old man attends his GP surgery with persistent tiredness despite adequate sleep. He is otherwise fit and well, exercising several times a week and eating a healthy vegan diet.

Blood investigations demonstrate a low serum B12 level.

Which of the following is the site of B12 absorption?
a