Histology 1

Question 1

Histology: definition? it considers how?

Answer 1

study of microscopic anatomy: how cells are organized to form tissues, and how tissues are organized to form organs and organ systems

Question 2

tissue: definition? cellular organization level?

Answer 2

ensemble of similar cells from the same origin that carry out the same specific function - cellular organization level intermediate between cells and a complete organ

Question 3

organs are formed by?

Answer 3

functional grouping of multiple tissues

Question 4

four basic tissue types

Answer 4

epithelium, connective tissue, muscle and nerve

Question 5

analyzing a histological section: 2 key guiding principles

Answer 5

scan entire image. decide overall organization before focusing in on a small area

Question 6

acidic dyes: react with? example of dye?

Answer 6

basic components like proteins and other cytoplasm components. eosin = red or pink

Question 7

basic dyes react with? ex of dye?

Answer 7

anionic or acidic components like nucleic acids. hemotoxylin = purple