3.1 And 3.2 Tissues And Organs And Digestive System Flashcards
What are cells
Make up all living things
What is a tissue
A group of specialized cells with similar structure and function. They can be made of more than one type of cell. Examples include msucular tissue
Different types of tissues
Msucular tissue-contract and bring about movement
Glandular tissue-contains secretory cells that can produce and release substances such as enzymes and hormones
Epithelia tissue-covers the outside of your body as well as your internal organs
What are organs and examples
Organs are a collection of tissues working tigether to produce a specific function.
Muscular tissue-to churn down food and digestive juices of the stomach together
Glandular tissue-to produce digestive juices that break down food
Epithelial tissue-shich covers the inside and the outside of the organ
What are organ systems
Are a groups of organs that all work together to perfom specific fucntions. Stomach is part of digestive system along with organs such as liver and small inestine
What is the order tissues and organs
Cells,tissues,organs,organ systems,organisms
What digestive system
An organ system, as it is made up ofnorgans working together to perfom a fertain function
What is the role of the digestive system
The purpose of the digestive system is to break down large molecules into smaller,soluble molecules,which are then absorbed into the bloodstream. The rate of those reavtions are increased by enzymes
Role of salivary gland
Produces amylase which catalyse reactions that break down starch into simple sugars
Role of the mouth
Grinds food into smaller pieces to increase surface area of food for enzymes
Role of oesophagus
Muscles use peristalsis to push food along towards stomach
Role of stomach
Thick muscular walls that churn up food into chyme. Food mixed with stomach acid so protease have correct pH yo work efficiently
Role of liver
Lover produces bule which is stored in the gall bladder. Bule breaks up fat food into smaller droplets in small intestine which can mix woth watery liquids.
Role of pancreas
Secrets hormones that control glucose levels in blood as glucose tends to rise. Insulin released which converts excess glucose into glycogen and pancrease converts glycogen back into glucose
Role of small intestine
Made up duodenum and ileum and bile enters duodenum which breaks fat into tiny droplets which lipase break down.
Glands in ileum produce enzymes to break down food and small molecules of food pass through walls into bloodstream
Role of large intestine
Indigestible material and water remains and and colon absorbes water into blood and undigested material becomes solid which is then passed out the body through rectums and anus
Order of digestive system
Mouth(salivary glands)-oesophagus)-stomach-liver-pancreas and gall bladder-small inestine-large intestine-rectum-anus
