what does "extracellular matrix" mean and what does that have to do with the epithelial tissue?

Give some characteristics of intercellular matrix.

can you describe a epithelial cell in depth with all it's structures?

Which is the term for more than one layer of cells when describing epithelium?

What do you mean by fluid tissue?

What do you mean by simple ciliated epithelium?

What is meant by the term semi-permeable membrane?

Define each of these terms: a freely permeable membrane, an impermeable membrane, and a selectively permeable membrane. During your next exam, you may begin to sweat a solution of sodium, chloride, and water, but not proteins, sugars, or nucleotides. Are the membranes of your sweat gland cells freely permeable, impermeable, or selectively permeable?

What does it mean when a membrane is described as selectively permeable?

Which cell has a ruffled border and acts to break down bone matrix? From your knowledge of organelles, state which organelle would be the likely source of the enzymes that can digest bone matrix.