BTA Mr. Newkirk 2012
Terms : Hide Images
| 354361297 | adhering junction | Cell junction composed of adhesion proteins; anchors cells to each other or to extracellular matrix. | |
| 354361298 | gap junction | Cell junction that forms a cylindrical open channel across the plasma membrane of adjoining animal cells; permits rapid flow of ions and small molecules from the cytoplasm of one cell to another. | |
| 354361299 | tight junction | connections formed by proteins on the plasma membrane of adjacent epithelial cells that prevent fluid from seeping though the space between these cells | |
| 354361300 | tissue | In multicelled organisms, a group of cells specialized to perform task(s). | |
| 354361301 | epithelial | Animal tissue that covers the external body surfaces and lines tubular organs and body cavities. One surface is free and the other rests on a basement membrane. | |
| 354361302 | basement membrane | Noncellular, secreted material that attaches epithelium to an underlying tissue. | |
| 354361303 | connective | major type of tissue consisting of cells embedded in an extracellular matrix of their own secretions; most abundant type of animal tissue | |
| 354361304 | adipose | Specialized connective tissue made up of fat-storing cells. | |
| 354361305 | blood | Fluid connective tissue that is the transport medium of circulatory systems | |
| 354361306 | bone | In vertebrates, a specialized connective tissue with a matrix hardened by osteoblast secretions, calcium and other mineral ions. | |
| 354361307 | cardiac muscle | A contractile tissue present only in the heart wall; consists of striated and branching cells | |
| 354361308 | cartilage | Specialized connective tissue with fine collagen fibers in a rubbery, pliable matrix that resists compression. | |
| 354361309 | loose connective | Layout: fibers & fibroblasts loosely arrayed in semifluid ground substance. Location: under the skin and most epithelia. Function: Elasticity, diffusion. | |
| 354361310 | dermis | Skin layer beneath the epidermis; mostly dense connective tissue. | |
| 354361311 | germ layer | One of the primary tissue layers in an embryo (endoderm, ectoderm, or mesoderm). | |
| 354361312 | ectoderm | The first-formed, outer primary tissue layer of animal embryos; gives rise to nervous system tissues and integument's outer layer. | |
| 354361313 | endoderm | Innermost primary tissue layer of animal embryos; source of inner gut lining and derived organs. | |
| 354361314 | mesoderm | Middle primary tissue layer (between endoderm and ectoderm) of most animal embryos; gives rise to many internal organs and part of the integument. | |
| 354361315 | epidermis | Outermost tissue layer of plants and nearly all animals. | |
| 354361316 | gland | A secretory organ derived from epithelium | |
| 354361317 | endocrine gland | secretes hormones directly into the blood rather than through a duct; e.g. pituitary gland, pancreas, ovaries, testes, thyroid gland, adrenal glands. | |
| 354361318 | exocrine gland | secretes a substance through a duct/tube onto a free epithelial surface; e.g., sweat gland, mammary gland. | |
| 354361319 | homeostasis | The collection of processes by which the conditions in a multicelled organism's internal environment are kept within tolerable ranges. | |
| 354361320 | melanin | A brownish-black pigment deposited in skin; amounts vary among ethnic groups. | |
| 354361321 | microvillii | Slender extensions from free surface of some cells, such as brush border cells in the small intestine; increases surface area. | |
| 354361322 | nervous tissue | Animal tissue consisting of neurons and often neuroglia. | |
| 354361323 | glial cell | Any of the nervous tissue cells that structurally and metabolically support neurons.They make up about half the volume of nervous tissue in vertebrates. | |
| 354361324 | neuron | Type of excitable/nerve cell; basic communication unit in most nervous systems. | |
| 354361325 | organ | Body structure composed of tissues that interact in one or more tasks. | |
| 354361326 | organ system | A set of organs that are interacting chemically, physically, or both, in a common task. | |
| 354361327 | skeletal muscle | Striated contractile tissue that is the functional partner of bone. | |
| 354361328 | smooth muscle | Nonstriated contractile tissue found in soft internal organs. | |
| 354361329 | stem cell | Self-perpetuating, undifferentiated animal cell. A portion of its daughter cells become specialized. | |
| 354361330 | negative feedback | a homeostatic mechanism in which the products of a process inhibit that process | |
| 354361331 | positive feedback | a homeostatic control mechanism in which the products of a process stimulate or strengthen that process |
