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Biol 223 Histology 2

Connective Tissue Proper - Fibers, Composition, Cartilage, Bone, Blood

What are 3 characteristics of connective tissue proper? Few cells; Lots of matrix; Fibers inbetween cells
What are the 3 types of fibers in connective tissue proper? Elastic; Reticular; Collagen
What is the main function of connective tissue proper? It is mechanically involved in tying pieces together, connecting them, and holding them together.
What is ground substance? The matrix of connective tissue that is mostly made of glycoproteins.
What is a fibroblast? The most common connective tissue cell. It produces fibers and the matrix.
What are macrophages? Cells that find and eat infection and other debris.
What are mast cells? White blood cells in connective tissue that play a role in the immune system response of the body.
What are plasma cells? Cells that produce antibodies in the connective tissue proper.
What is dense connective tissue? Tissue that has many fibers. It is made for areas that take a lot of stress.
What is loose connective tissue? Tissue that does NOT have many fibers. It is made for areas that DO NOT take a lot of stress.
What is regular connective tissue? Tissue that has fibers all going in one direction.
What is irregular connective tissue? Tissue that has fibers going in many different directions.
Describe loose, irregular connective tissue. Fibers go in all directions; Found under the skin; AKA 'areolar tissue'
What is adipose tissue? Nucleus always squashed to one side; Made of fibroblasts and lipid (fat) molecules; Where the body stores excess nutrients
What are the two basic types of bone tissue? Dense or compact bone and cancellous or spongy bone
What are trabeculae? A network of interconnected plates in the cancellous bone that serve as a supporting lattice.
What are lamellae? Concentric rings of bone that are in haversian systems and made by osteocytes.
Define osteocytes. Bone cells
What are erythrocytes? Red blood cells
What are the 4 elements found in blood? Erythrocytes (red blood cells); Leukocytes (white blood cells); Thrombocytes (platelets); Plasma
What is a platelet? A packet of chemicals surrounded by a cell membrane that has been pinched off of a megakaryocyte.
What is a megakaryocyte? A very large cell located in bone marrow that is responsible for creating thrombocytes.
What are the two types of cells in nervous tissue? Neurons and neuroglia
Structurally, what are the 3 basic parts of a neuron? Cell body or perikaryon; Processes (2 types); Myelin sheath
What are the two possible process of a neuron? Axons and dendrites
What is the function of an axon? It carries nerve impulses away from the neuron's cell body.
what is the function of a dendrite? It carries nerve impulses to the neuron's cell body.
What is the myelin sheath? A layer of lipid material that surrounds a nueron's process and is produced by neuroglia cells.
Created by: nikkirosety



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