The distinguishing characteristic of connective tissue is
A) the collagen fibers that offer support.
B) the presence of extensive extracellular matrix containing widely scattered cells.
C) always dividing, constantly being replaced throughout the body.
D) that it is arranged in sheets of tissue that lie on body surfaces.
E) All of these characteristics help make connective tissue unique.
B) the presence of extensive extracellular matrix containing widely scattered cells.
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A) Neurotransmitters B) Gap junctions C) Synapses D) Tight junctions
The opening of more and more Na+ channels during depolarization
A. is an example of a positive feedback cycle. B. is the cause of the afterpotential. C. is the result of the sodium-potassium exchange pump. D. is an example of a negative feedback cycle. E. is possible only if K+ channels remain closed.
Of the muscles listed, the only one that inserts on the hyoid bone is the
A. hyoglossus. B. palatoglossus. C. styloglossus. D. lateral pterygoid. E. genioglossus.
____________________ may serve as a satiety signal to stop eating before ingested food is actually digested, absorbed, and made available to meet the body's energy needs
Fill in the blank(s) with correct word