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Tissue Types (A. Does the tissue have a free surface (part of cell exposed…
Tissue Types
A. Does the tissue have a free surface (part of cell exposed to body exterior or organ cavity)
Yes - epithelium
Is there a single, distinct layer of cells?
No - pseudostratified or stratified epithelium
Do the cells appear to be predominantly columnar, but adjacent cells are of different height with nuclei staggered up and down?
No - stratified epithelium
Given that you are looking at stratified epithelium, Do the cells at the apical (free) surface appear flat, with little cytoplasm around the nucleus or with no visible nucleus?
No - stratified cuboidal or stratified columnar epithelium
Do the cells at the apical surface appear square, with a round nucleus near the center?
2 more items...
Yes - stratified squamous epithelium
Do the cells at the apical surface contain nuclei?
2 more items...
Yes - pseudostratified epithelium
Are there cilia at the apical surface?
Yes - ciliated pseudostratified columnar epithelium
Psuedostratified columnar epithelium
Yes - simple epithelium
Do the cells appear flat, with little cytoplasm around the nucleus?
Yes - simple squamous epithelium
No - simple cuboidal or simple columnar epithelium
Do the cells appear square, with a round nucleus near the center?
No - simple columnar epithelium
Do the cells appear rectangular, with an oval nucleus near the middle or toward the side furthest from the free surface?
2 more items...
Yes - simple cuboidal epithelium
No - connective tissue, muscle tissue, or nervous tissue
B. Do you see relatively few cells that appear to be separated by extracellular material?
No - muscle tissue or nervous tissue
C. Do there appear to be hot dog bun-shaped structures lined up end to end?
No - muscle
D. Do the cells lack striations?
Yes - smooth muscle
No - skeletal or cardiac muscle
Do you see intercalated disks?
2 more items...
Yes - nervous tissue
Yes - connective tissue or nervous tissue
Do you see large cell shaped like a many-pointed star surrounded by many smaller cells?
Yes - nervous tissue
No - connective tissue
Do you see concave cells with no apparent nucleus?
No - connective tissue proper, cartilage, or bone
Are there lacunae?
2 more items...
Yes - blood connective tissue
