digestive system

digestive system   Dan respiratory system

They release two chemicals, acetylcholine and adrenaline Acetylcholine causes the muscle layer of the digestive organs to contract with more

Digestion begins in the mouth with chewing and ends in the small intestine As food passes through the GI tract, it mixes with digestive juices, causing large Join the Amoeba Sisters for a brief tour through the human digestive system! This video will

เว็บสล็อตฝากถอนไม่มีขั้นต่ำ Digestive System · Select One: · The Anus and Rectum · The Appendix and Large Intestine · The Esophagus · The Gallbladder · The Liver · The Pancreas · The Small The Digestive Tract • Six Functions of the Digestive System 1 Ingestion 2 Mechanical processing 3 Digestion 4 Secretion 5 Absorption 6 Excretion