Animal Cells 0.0 / 5 ? BiologyCell TypesA2/A-levelOCR Created by: Om4rCreated on: 25-04-19 11:50 What is a Tissue? Group of cells that work together to perform a specific function 1 of 24 What are the 4 Main Tissue Types? Epithelial (lining tissue), Connective, Muscle and Nervous 2 of 24 What do connective tissues do? Hold structures together and provide support 3 of 24 What is the function of muscle tissue? Made of cells specialised to contract and cause movement 4 of 24 What is the Function of Nervous Tissue? Made of cells specialised to conduct electrical impulses 5 of 24 What are Examples of Connective Tissue? Bone and Cartilage 6 of 24 What does Epithelial Tissue Cover? Free surfaces in the body such as the Skin , cavities of the digestive and respiratory system, Blood vessels heart chambers and walls of organs 7 of 24 What is Epithelial Tissue made up of? Almost entirely of cells, which are very close to eachother and form continuous sheets 8 of 24 How are adjacent cells bound together? By lateral contacts, such as tight junctions and desmosomes 9 of 24 How do Epithelial Tissue cells recieve Nutrients? By diffusion from tissue fluid in the underlying connective tissue 10 of 24 What functions do Epithelial cells have? Protection, absorption, filtration, excretion and secretion 11 of 24 Why may epithelial cells divide? To replace worn or damaged tissue 12 of 24 What does Connective Tissue Consist of? Non- Living Extracellular matrix containing proteins and Polysaccharides 13 of 24 What is the Purpose of the Matrix? Separates the living cells within the tissue and enables it to withstand forces such as weight 14 of 24 What are Immature cells in Cartilage called? Chondroblasts 15 of 24 What are the 3 types of Cartilage? Hyaline, Fibrous and Elastic 16 of 24 What does Hyaline Cartilage form? The embryonic skeleton, Joins ribs to sternum, in nose, trachea 17 of 24 Where is Fibrous Cartilage found? In discs between vertebrae in the backbone and in the knee joint 18 of 24 Where is Elastic Cartilage found? Outer ear and Epilottis 19 of 24 What are the Characteristics of Muscle Tissue? Well vascularised , elongated and contain myofilaments made of actin and myosin which allow contractions 20 of 24 What are the 3 Types of Muscle Tissue? Skeletal, Cardiac and Smooth 21 of 24 What is Skeletal Muscle? It's packaged by connective tissue sheets, joined to bones by tendons, these muscles when they contract cause bones to move 22 of 24 What is Cardiac Muscle? Makes up walls of heart, allows heart to beat and pump blood 23 of 24 What is Smooth Muscle? Occurs in walls of intestine, blood vessels. uterus and urinary tracts. Propels substances along these tracts 24 of 24
Comments
No comments have yet been made