Digestive System Purpose The digestive system prepares aliment for use by hundreds of millions of body cells. Food when eaten cannot reach cells (because it cannot nick through the intestinal walls to the bloodstream and, if it could would not be in a useful chemical state. The gut modifies food physically and chemically and disposes of unusable waste. Physical and chemical modification (digestion) depends on exocrine and endocrine secretions and controlled movement of food through the digestive tract. Mouth Mouth Food enters the digestive system via the mouthpiece or oral endocarp, mucous membrane lined.
The lips (labia) protect its outer(prenominal) opening, cheeks dust lateral walls, hard palate and soft palate puzzle out anterior/posterior roof. Communication with nasal cavity screwing soft palate. Floor is muscular tongue. Tongue has otiose attachments (styloid process, hyoid bone bone) attached to floor of mouth by frenulum. bottom of the frame exit from mouth guarded by a sinker of palatine/lingual tonsils. Enlargement ...If you want to get a full essay, order it on our website:
OrderCustomPaper.comIf you want to get a full essay, visit our page:
write my paper
No comments:
Post a Comment