Examlex
Which of the cervical vertebra is responsible for permitting the movement of the head seen when saying "yes"?
Peristalsis
The involuntary contractions and relaxations of the muscles in the digestive tract, which move contents through the system.
Jejunum
The middle section of the small intestine between the duodenum and ileum, where most of the nutrients from food are absorbed.
Duodenum
The first section of the small intestine immediately beyond the stomach, responsible for the initial phase of digestion.
Occult Blood
Hidden blood in stool or other bodily substances, not visible to the eye but detectable through specific medical tests.
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