digestive system

Question 1

what is peristalsis

Answer 1

-the process of involuntary muscle contracts and moves the bolus down the oesophagus

Question 2

what is bile

Answer 2

-from red blood and the part of haemoglobin does not contain iron

Question 3

What is the process of bile

Answer 3

• breaks down fats so that it can be digested more easily
• promotes peristalsis in the intestines
• it neutralises chyme that comes out of the stomach
• it is an antiseptic and prevents decay in the small intestine

Question 4

What is a villi

Answer 4

• known as intestinal villi
• it is hair-like outgrowths of approximately one millimetre found in the small intestine
• the capillaries in the villi absorb digested food