Ch. 40
All animals, whether large or small, have _____.
most of their cells in contact with an aqueous medium
Interstitial fluid is _____.
a common site of exchange between blood and body cells
Much of the coordination of vertebrate body functions via chemical signals is accomplished by the _____.
endocrine system
Most of the exchange surfaces of multicellular animals are lined with _____.
epithelial tissue
All types of muscle tissue have _____.
interactions between actin and myosin
Blood is best classified as connective tissue because _____.
its cells are separated from each other by an extracellular matrix
The four major categories of tissues are _____.
nervous, epithelial, connective, and muscle
Connective tissues typically have _____.
relatively few cells and a large amount of extracellular matrix
Of the following choices, the epithelium with the shortest diffusion distance is _____.
simple squamous epithelium
Food moves along the digestive tract as the result of contractions by _____.
smooth muscle
The type of muscle tissue surrounding the intestines and blood vessels is _____.
smooth muscle