Ex 2 Post Lab A

The tissue represented by 'A' has all living layers.

agree

How many layers are present in simple epithelial tissues?

1

Epithelium consists of ________ . ________ cell junctions are present, securing these cells ________ together to each other at their lateral surfaces. Blood vessels ________ typically penetrate epithelium. Epithelium ________ a nerve supply. Epithelium ________ have the capacity to undergo mitosis. The apical surface area of some epithelial cells is modified by the presence of ________ for absorption and ________ for moving substances along the cell surface.

1. closely packed cells 2. many 3. tightly 4. do not 5. has 6. does 7. microvilli 8. cilia

What area represents connective tissue? What area represents epithelial tissue? What area is capable of moving material such as mucous? What area represents the apical surface? What area is avascular? What area is vascular? What is the name of the epithelial tissue found in the picture? Where can the tissue be found in the body?

D C B A C D pseudostratified ciliated columnar epithelial lining the inside of the upper respiratory tract

Simple columnar epithelium (non-ciliated) Transitional (dome shaped cells, multiple layers) Simple squamous (whole mount) stratified squamous (non-keratinized) - nuclei from basement membrane to apical surface simple cuboidal keratinized stratified squamous (no nuclei about half way through the layers)

E D C F A B

Epithelial tissue collage (cannot find image): absorbs nutrients and produces mucous stretches allows for fast diffusion, osmosis, filtration found lining mouth, anus, vagina and esophagus. Represents a mucus membrane. allows absorption in kidney tubules protects the outside of the body, represents a cutaneous membrane

E D C F A B

Match the appropriate answer to the description: one layer of flat cells that line the outside of an organ one layer of flat cells that line the inside of an organ, such as blood vessels endothelium and mesothelium are composed of what epithelial tissue What type of simple squamous epithelial forms the serous membrane

mesothelium endothelium simple squamous mesothelium

Identify the structure at pointer numbered 2 Identify the structure at pointer numbered 3 What is the function of structure 3 Identify the structure at pointer numbered 1 What is the function of structure number 1 What is the tissue in the field of view simple ciliated columnar

nucleus in a relatively straight row towards basement membrane microvilli absorbs nutrients goblet cell secrete mucous simple columnar (non-ciliated)

What terms descibe epithelium tissue? Select all that apply.

forms glands proliferative lines openings and covers structures innervated receives nutrients from blood vessels in connective tissue avascular

________ is when the number of cells increases. ________ is when the size of the cell increases. ________ is the the development of cells into specialized functional cells.

1. hyperplasia OR proliferation 2. hypertrophy 3. differentiation OR different

________ tissue allows distention and is located in the urinary bladder and ureters. ________ is located in bronchioles while ________ is located in the upper respiratory tract. ________ lines the intestinal tract.

1. transitional 2. simple ciliated columnar 3. pseudostratified ciliated columnar 4. simple columnar (non-ciliated)

The tissue represented by 'B' has all living layers.

disagree

The tissue represented by 'A' is found lining moist openings.

True

True or false: Columnar cells have round nuclei that are usually at the apical surface. All three germ tissues can differentiate into epithelial tissue. Epithelial tissue is avascular and always has a free surface. Exocrine glands secrete hormones onto the surface of the body. They are composed of epithelial tissue.

False True True True

What terms describe epithelium tissue? Select all that apply.

forms glands avascular proliferative lines openings and covers structures receives nutrients from blood vessels in connective tissue innervated

Naming of the epithelial tissues: simple stratified pseudostratified squamous cuboidal columnar

one layer of cells on basement membrane two or more layers of cells on basement membrane appears to be multiple layers because of the heights, but all cells touch the basement membrane thin, flat cells from sideview or irregular shaped cells from wholemount view square-like in shape with a round, centered nucleus taller than wide with an oval shaped nucleus usually towards the basement membrane