Chapter 1 Definitions Flashcards
acute
of recent onset. The period after an injury when the local inflammatory response is still active.
stress
a force that disrupts the normal homeostasis of a system
amino acids
building blocks of protein
chronic
continuing for a long period; with injury, extending past the primary hemorrhage and inflammation cycle
cortisol
a cortisone-like substance produced in the body
homeostasis
state of equilibrium in the body and its systems that provides a stable internal environment
myocardial
pertaining to the middle layer of the heart walls
pathology
changes in structure and/or function caused by disease or trauma
sprain
a stretching or tearing of ligaments
strain
a stretching or tearing of tendons or muscles
systemic
affecting the body as a whole
vasoconstriction
reduction in a blood vessel’s diameter. this results in a decrease in blood flow
collagen
a protein-based connective tissiue
osteoblast
a cell concerned with the formation of new bone
osteoclast
a cell that absorbs and removes unwanted bone
conduction
the transfer of heat from a high temperature to a low temperature between two objects that are touching each other
diathermy
a classification of therapeutic modality that uses high-frequency electrical energy to heat subcustaneous tissues
motor nerve
a nerve that provides impulses to mucles
motor unit
a group of skeletal muscle fibers that are innervated by a single motor nerve
transdermal (transdermally)
introduction of medication to the subcutaneous tissues through unbroken skin
afferent
carrying impulses toward a central structure, for example, the brain
efferent
carrying umpulses away from a central structure. Nerves leaving the central nervous system are efferent nerves
metabolism
the suym of physical and chemical reactiosn taking place within the body
aerobic
requiring the presence of oxygen
anaerobic
able to survive int he absence of oxygen. Anaerobic system derive their energy through the breakdown of adenosine triphosphate (ATP) into adenosine diphosphate (ADP)
propagation
transmission through a medium
um
micrometer, 1/1,000,000 of a meter
millivotl (mV)
one millivolt equals 1/1,000 of a volt
muscle spindle
an organ located within the muscular tissue that detects the rate and magnitude of a muscle contraction
noxious
harmful, injurious, or painful. Capable of producing pain
basement membrane
extracellular material that deparates the base of epithelial cells form connective tissue
extracellular
outside the cell membrane
ground substance
material occupying the intercellular spaces in fibrous connective tissue, cartilage, or bone (also known as matrix)