NUR 303- Exam 1 (UMaine) All Answers Correct
Osmosis a process by which molecules of a solvent tend to pass through a semipermeable membrane
from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on
each side of the membrane
Diffusion Diffusion is...
Osmosis ✅a process by which molecules of a solvent tend to pass through a semipermeable membrane
from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on
each side of the membrane
Diffusion ✅Diffusion is the net passive movement of particles (atoms, ions or molecules) from a region
in which they are in higher concentration to regions of lower concentration
Hydrostatic Pressure ✅The pressure exerted by a fluid at equilibrium at a given point within the fluid,
due to the force of gravity
Endocytosis ✅the taking in of matter by a living cell by invagination of its membrane to form a vacuole.
Exocytosis ✅a process by which the contents of a cell vacuole are released to the exterior through
fusion of the vacuole membrane with the cell membrane.
Phagocytosis ✅the ingestion of bacteria or other material by phagocytes
Pinocytosis ✅the ingestion of liquid into a cell by the budding of small vesicles from the cell membrane.
Hypertrophy ✅the enlargement of an organ or tissue from the increase in size of its cells.
Metaplasia ✅abnormal change int he nature of a tissue
Ischemia ✅an insufficient blood supply to an organ or part of the body
Atrophy ✅to decrease in size or wasting away of a body part or tissue
, Dysplasia ✅abnormal growth or development of a tissue or organ
Apoptosis ✅the death of cells that occurs as a normal and controlled part of n organism's growth or
development
Macrophages ✅a type of white blood cell that engulfs and digests cellular debris, foreign substances,
microbes, cancer cells, and anything else that does not have the types of proteins specific to healthy
body cells on its surface in a process called phagocytosis
Self-antigens ✅any molecule or chemical group of an organism which acts as an antigen in inducing
antibody formation in another organism but to which the healthy immune system of the parent
organism is tolerant
Delayed hypersensitivity ✅hypersensitivity (as in a tuberculin test) which is mediated by T cells and in
which the typical symptoms of inflammation and induration appear in an individual previously exposed
to an antigen after an interval of 12 to 48 hours following a subsequent exposure
Anaphylaxis ✅an acute allergic reaction to an antigen to which the body has become hypersensitive
Hypersensitivity ✅extreme physical sensitivity to particular substances or conditions
Homeostasis ✅optimal state
Autoimmunity ✅the system of immune responses of an organism against its own healthy cells and
tissues
Immunogenicity ✅the ability of a particular substance, such as an antigen or epitope, to provoke an
immune response in the body
Immunodeficiency ✅a state in which the immune system's ability to fight infectious disease and cancer
is compromised or entirely absent
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