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Surgical Tech 1

Cells, Tissues, and Membranes Terminology

The smallest structural unit of living matter capabable of functioning independently Cell
Group of similar cells arranged with intercellular substance between them specialized to perform a particular function Tissue
Surface layer of the cytoplasm of a cell Cell membrane
The study of the structure, function, multiplication, and pathology of cells Cytology
The central structure of a cell enclosed in a membrane which is essential to cellular fuctions such as reproduction and protein synthesis Nucleus
The living matter in all cells which is an organized complex of organic and inorganic substances which are too small for resolution with an ordinary light microscope Protoplasm
A membrane which allows some molecules to pass through but not others Semi-permeable membrane
A small cavity or space in cell protoplasm containing air or fluid Vacuole
Substances such as acid, bases, and salts which in solution conduct an electrical current Electrolytes
A relatively stable state of equilibrium Homeostasis
Particles move to equalize concentration throughout Diffusion
Particles move through a filter or membrane that prevents passage of certain molecules Filtration
Solvent molecules pass through a semi-permeable membrane to equalize concentration on each side Osmosis
The process of engulfing a solid particle by forming a pocket with the cell membrane Phagocytosis
The process of engulfing a liquid particle by forming a pocket with the cell membrane Pinocytosis
Acts as a barrier from heat, cold, water loss, and bacterial invasion; aids in secretion and excretion Epithelial Tissue
Protects, supports, transports, and bonds the body together Connective Tissue
Moves body by contraction/relaxation of pairs Muscle Tissue
Conducts impulses throughout the body Nerve Tissue
Strands of DNA bearing the genes which carry the hereditary characteristics Chromosomes
Created by: heatherleach