Glisten => if sth glistens, it shines because it is wet or covered with oil. His forehead was glistening with sweat(ter). Pine

Muscular => very strong and attractive, with muscles that have been developed through exercise
((172)) Sac => a part of an animal or plant that is shaped like a small bag and is usually filled with liquid or air
Secrete => to produce a liquid such as saliva
Gastric juices => substances created by your stomach to help it to digest food
((173)) Protein => a substance in food such as meat, eggs, and milk that people need in order to grow and be healthy
Mucus => a liquid produced in some parts of your body, for example the inside of your nose
Coat => to cover sth with a layer of a substance
Churn => if your stomach churns, you have a strong nervous feeling in it because you are worried, afraid, or upset
Anus => the hole in your bottom through which you get rid of solid waste
Rectum => the lowest part of the tube through which solid waste leaves your body
((174)) contraction => the process of becoming smaller
Duodenum => the first section of your small intestine, just below your stomach.
Pancreas => the small organ in your body that produces substances that help your stomach to process food
Elongate => to become longer, or to make something longer
Bile => a green-brown liquid that is made in the liver and helps you to digest fats
Gall bladder => the organ next to your liver where your body stores a liquid called bile
Bloodstream => the blood that moves around your body
Villus =villi => one of a large number of small parts that stick out from the inner wall of the small intestine
Absorption => 1the process by which something takes in a substance, form of energy, or liquid
Feces =faeces => solid waste from your body
Eliminate => 1to get rid of sth that is not wanted or needed
((175)) Constipation => a condition in which you cannot move solid waste out of your body easily