Flashcards in Levels of Organization/Maintenance of Life** Deck (25)
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1
The branch of science that deals with the structure of body parts, their forms, and how they are organized
anatomy
2
concerns the functions of body parts, what they do and how they do it
physiology
3
microscopic particles
atoms
4
A particle made up of 2 or more atoms
molecules
5
particles formed by molecules combining in a complex way
macromolecules
6
basic unit of structure and function
cell
7
composed of aggregates of macromolecules; carry out certain activities
organelles
8
cells that are organized into layers or other structures that have a common function
tissues
9
complex structures with specialized functions; formed by groups of tissues that interact
organ
10
a group of organs that function closely together
organ system
11
a living thing, organ systems make up this
organism
12
all of the chemical reactions in cells that break down or build up substances
metabolism
13
the condition of a stable internal environment
homeostasis
14
the fluid surrounding body cells
internal environment
15
maintains homeostasis though a number of self regulating control system
homeostatic mechanisms
16
provide information about specific conditions in the internal environment
receptors
17
tells what a particular value should be
set point
18
cause responses that alter conditions in the internal environment
effectors
19
cell specialization
differentiation
20
fluid outside cells
extracellular fluid
21
fluid in cells
intracellular fluid
22
a hormone secreting cell
interstitial
23
study of the structure and function of tissues
histology
24
process by which changes cause additional similar changes, producing unstable condition
positive feedback
25
