The mouth, throat, esophagus, stomach, intestines and rectum.

A series of steps to follow.

The larynx, also called voice box, is a muscular organ made up of nine cartilages located below the mouth at the upper end of the windpipe in the throat. It functions to produce speech and 

Carbohydrates, proteins, fats, vitamins and minerals used by the body for metabolism.

An inorganic element or compound occurring in nature that is essential to the body.

Medicine that relieves pain.

An organic compound found in plants and animals that is vital to the body and serves as a co-factor or co-enzyme to hasten or facilitate metabolic processes. Vitamins are not sources of energy and are… 

In males, one of two endocrine glands located in the scrotum that makes the hormones testosterone and inhibin which it releases in response to luteinizing hormone (LH) produced by the pituitary gland for the purpose of developing male sexual… 

Hormone secreted by beta cells located on the surface of the pancreas in response to elevations in blood glucose (sugar) levels, as for example, after eating a meal, for the purpose of bringing the level…