HUMAN NUTRITION

Detailed explanation-1: -Answer and Explanation: The passage of digested food from the digestive tract into the circulatory system is called absorption.

Detailed explanation-2: -Absorption: The passage of digested food from the digestive tract into the cardiovascular system (blood).

Detailed explanation-3: -The GI tract is the pathway food takes from your mouth, through the esophagus, stomach, small and large intestine. In the GI tract, nutrients and water from foods are absorbed to help keep your body healthy. Whatever isn’t absorbed keeps moving through your GI tract until you get rid of it by using the bathroom.

Detailed explanation-4: -Digesting Food Food entering the digestive systems causes nerve impulses to be sent to the brain; in response, the brain sends messages to the cardiovascular system to increase heart rate and dilate blood vessels in the digestive organs.

Detailed explanation-5: -As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.