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A. Does the tissue have a free space (No: connective, muscle or nervous…
A. Does the tissue have a free space
No: connective, muscle or nervous tissue
b. Do the cells appear square, with round nucleus near the center?
Yes: simple cuboidal epithelium
No: simple columnar epitheilum
c. Do the cells appear rectangular, with an oval nucleus near the middle or towards the side furthest from the free surface?
Yes: ciliated simple columnar epithelium
No: Reconsider the previous option
Yes: epithelium
is there a single, distinct layer of cells
No: pseudostratifed or stratified epithelium
Do the cells appear to be predominately columnar, but adjacent cells are different height with nuclei staggered up and down?
No: stratified epithelium
Do the cells at the apical surface appear flat, with little cytoplasm around the nucleus or with no visible nucleus?
No: stratified cubiodal or stratified columnar epithelium
b. Do the cells at the apical surface appear square, with a round nucleus near the center?
No: striated columnar epithelium
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Yes: striated cuboidal epithelium
Yes: stratified squamous epithelium
(1) Do the cells at the apical surface contain a nucleus?
No: nonkeratinized stratified squamous epithelium
Yes: keratinized stratified squamous epithelium
Yes: peudostratifed columnar epithelium
(1) Are there cilia at the apical surface?
Yes: ciliated pseudostraifed columnar epithelium
No: psedostratifed columnar epithelium