Tech APHY 101 Midterm NEWEST AND
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, Levels of organization - correct ans:Subatomic particles, atom, molecule, macromolecule, organelle,
cell, tissue, organ, organ system, organism
histology - correct ans:the study of tissues; structural basis for understanding organ physiology
tissue - correct ans:a group of similar cells that perform the same function; consists of cells and matrix
(fibers and ground substance)
tight junctions - correct ans:Membranes of neighboring cells are pressed together, preventing
movement of fluid between cells
gap junctions - correct ans:(communicating junctions) provide cytoplasmic channels between adjacent
cells; allow materials to move from one cell directly into a neighboring cell
adhering junctions (desmosomes) - correct ans:cells linked by protein plaques; resist tension; prevents
the cells from being pulled apart
epithelial tissue - correct ans:function= protection, excretion, absorption, secretion. Location= cover
body surface, cover and line internal organs, compose glands. characteristics= lack blood vessels
(avascular), cells readily divide, cells are tightly packed, polarity, innervated
connective tissue - correct ans:function= bind, support, protect, fill spaces, store fat, and produce blood
cells. location= widely distributed throughout the body. characteristics= good blood supply, cells are
farther apart, have extracellular matrix in between
muscle tissue - correct ans:function= movement. location= attached to bones, in the walls of hollow
internal organs, heart. characteristics= contract in response to stimuli
nervous tissue - correct ans:function= conduct impulses for coordination, regulation, integration, and
sensory reception. location= brain, spinal cord, nerves. characteristics= communicate with each other
and other body parts