The integumentary system:

Question

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The integumentary system provides a barrier that prevents bacteria from entering the body,helps to regulate body temperature,excretes liquids and salts,provides sensitivity to touch,and uses ultraviolet rays from the sun to convert chemicals into vitamin D,which is necessary for the absorption of calcium.
The liver manufactures bile.
The esophagus transports food from the pharynx to the stomach.
The liver removes excess glucose from the bloodstream and stores it as glycogen.

The Integumentary System