B3 Flashcards
What are tissues?
A tissue is a group of cells with similar structure and function working together. For example, muscular tissue can contract to bring about movement. Glandular tissue contains a secretory cells that can produce and release substances such as enzymes and hormones. Epithelial tissue covers the outside of your body as well as your internal organs.
What are organs?
Organs are collections of tissues. Children contain several tissues working together to perform a specific function. For example, the stomach, is an organ involved in the digestion of food. It contains:
Muscular tissue, to turn the food and digestive juices of the stomach together.
Glandular tissue, to produce the digestive juices to break down food.
Epithelial tissue, which covers the inside and outside of the organ.
What is the pancreas do?
The pancreas is an organ that has two important functions,it makes hormones control blood sugar, as well as some of the enzymes to digests food. It contains two very different types of tissue, which produce these different secretions.
What are organ systems?
A whole multi cellular organism is made up of a number of organ systems working together. Organ systems are groups of organs that work together to perform specific functions. The way in which one organ functions often depends on other organs in the system. Organ systems work together to form organisms. Organ systems in the human body include the digestive system, the circulatory System, and the gas exchange system. All of these systems Have adaptations in some of the organs that make them effective as exchange surfaces. These adaptations include features to increase the surface area of part of an organ System, a rich blood supply to areas where exchange takes place, areas with short diffusion distance for exchange, and mechanisms to increase the concentration gradient by ventilating services on moving materials on.
What is the organ systems?
A whole multi cellular organism is made up of a number of organ systems working together. Organ systems are groups of organs that work together to form specific functions. The way in which one organ functions often depends on other organs In the system. Organ systems work together to perform organisms. Organ systems in the human body includes digestive system
